2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
25 /* Bluetooth HCI event handling. */
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31 #include <net/bluetooth/mgmt.h>
33 #include "hci_request.h"
34 #include "hci_debugfs.h"
41 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
42 "\x00\x00\x00\x00\x00\x00\x00\x00"
44 #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
46 /* Handle HCI Event packets */
48 static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
53 data = skb_pull_data(skb, len);
55 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
60 static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
65 data = skb_pull_data(skb, len);
67 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
72 static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
77 data = skb_pull_data(skb, len);
79 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
84 static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
87 struct hci_ev_status *rp = data;
89 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
91 /* It is possible that we receive Inquiry Complete event right
92 * before we receive Inquiry Cancel Command Complete event, in
93 * which case the latter event should have status of Command
94 * Disallowed (0x0c). This should not be treated as error, since
95 * we actually achieve what Inquiry Cancel wants to achieve,
96 * which is to end the last Inquiry session.
98 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
99 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
106 clear_bit(HCI_INQUIRY, &hdev->flags);
107 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
108 wake_up_bit(&hdev->flags, HCI_INQUIRY);
111 /* Set discovery state to stopped if we're not doing LE active
114 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
115 hdev->le_scan_type != LE_SCAN_ACTIVE)
116 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
117 hci_dev_unlock(hdev);
119 hci_conn_check_pending(hdev);
124 static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
127 struct hci_ev_status *rp = data;
129 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
134 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
139 static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
142 struct hci_ev_status *rp = data;
144 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
149 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
151 hci_conn_check_pending(hdev);
156 static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
159 struct hci_ev_status *rp = data;
161 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
166 static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
169 struct hci_rp_role_discovery *rp = data;
170 struct hci_conn *conn;
172 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
179 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
181 conn->role = rp->role;
183 hci_dev_unlock(hdev);
188 static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
191 struct hci_rp_read_link_policy *rp = data;
192 struct hci_conn *conn;
194 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
201 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
203 conn->link_policy = __le16_to_cpu(rp->policy);
205 hci_dev_unlock(hdev);
210 static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
213 struct hci_rp_write_link_policy *rp = data;
214 struct hci_conn *conn;
217 struct hci_cp_write_link_policy cp;
218 struct hci_conn *sco_conn;
221 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
226 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
234 conn->link_policy = get_unaligned_le16(sent + 2);
237 sco_conn = hci_conn_hash_lookup_sco(hdev);
238 if (sco_conn && bacmp(&sco_conn->dst, &conn->dst) == 0 &&
239 conn->link_policy & HCI_LP_SNIFF) {
240 BT_ERR("SNIFF is not allowed during sco connection");
241 cp.handle = __cpu_to_le16(conn->handle);
242 cp.policy = __cpu_to_le16(conn->link_policy & ~HCI_LP_SNIFF);
243 hci_send_cmd(hdev, HCI_OP_WRITE_LINK_POLICY, sizeof(cp), &cp);
247 hci_dev_unlock(hdev);
252 static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
255 struct hci_rp_read_def_link_policy *rp = data;
257 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
262 hdev->link_policy = __le16_to_cpu(rp->policy);
267 static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
270 struct hci_ev_status *rp = data;
273 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
278 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
282 hdev->link_policy = get_unaligned_le16(sent);
287 static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
289 struct hci_ev_status *rp = data;
291 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
293 clear_bit(HCI_RESET, &hdev->flags);
298 /* Reset all non-persistent flags */
299 hci_dev_clear_volatile_flags(hdev);
301 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
303 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
304 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
306 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
307 hdev->adv_data_len = 0;
309 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
310 hdev->scan_rsp_data_len = 0;
312 hdev->le_scan_type = LE_SCAN_PASSIVE;
314 hdev->ssp_debug_mode = 0;
316 hci_bdaddr_list_clear(&hdev->le_accept_list);
317 hci_bdaddr_list_clear(&hdev->le_resolv_list);
322 static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
325 struct hci_rp_read_stored_link_key *rp = data;
326 struct hci_cp_read_stored_link_key *sent;
328 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
330 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
334 if (!rp->status && sent->read_all == 0x01) {
335 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
336 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
342 static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
345 struct hci_rp_delete_stored_link_key *rp = data;
348 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
353 num_keys = le16_to_cpu(rp->num_keys);
355 if (num_keys <= hdev->stored_num_keys)
356 hdev->stored_num_keys -= num_keys;
358 hdev->stored_num_keys = 0;
363 static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
366 struct hci_ev_status *rp = data;
369 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
371 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
377 if (hci_dev_test_flag(hdev, HCI_MGMT))
378 mgmt_set_local_name_complete(hdev, sent, rp->status);
379 else if (!rp->status)
380 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
382 hci_dev_unlock(hdev);
387 static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
390 struct hci_rp_read_local_name *rp = data;
392 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
397 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
398 hci_dev_test_flag(hdev, HCI_CONFIG))
399 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
404 static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
407 struct hci_ev_status *rp = data;
410 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
412 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
419 __u8 param = *((__u8 *) sent);
421 if (param == AUTH_ENABLED)
422 set_bit(HCI_AUTH, &hdev->flags);
424 clear_bit(HCI_AUTH, &hdev->flags);
427 if (hci_dev_test_flag(hdev, HCI_MGMT))
428 mgmt_auth_enable_complete(hdev, rp->status);
430 hci_dev_unlock(hdev);
435 static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
438 struct hci_ev_status *rp = data;
442 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
447 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
451 param = *((__u8 *) sent);
454 set_bit(HCI_ENCRYPT, &hdev->flags);
456 clear_bit(HCI_ENCRYPT, &hdev->flags);
461 static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
464 struct hci_ev_status *rp = data;
468 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
470 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
474 param = *((__u8 *) sent);
479 hdev->discov_timeout = 0;
483 if (param & SCAN_INQUIRY)
484 set_bit(HCI_ISCAN, &hdev->flags);
486 clear_bit(HCI_ISCAN, &hdev->flags);
488 if (param & SCAN_PAGE)
489 set_bit(HCI_PSCAN, &hdev->flags);
491 clear_bit(HCI_PSCAN, &hdev->flags);
494 hci_dev_unlock(hdev);
499 static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
502 struct hci_ev_status *rp = data;
503 struct hci_cp_set_event_filter *cp;
506 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
511 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
515 cp = (struct hci_cp_set_event_filter *)sent;
517 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
518 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
520 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
525 static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
528 struct hci_rp_read_class_of_dev *rp = data;
530 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
535 memcpy(hdev->dev_class, rp->dev_class, 3);
537 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
538 hdev->dev_class[1], hdev->dev_class[0]);
543 static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
546 struct hci_ev_status *rp = data;
549 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
551 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
558 memcpy(hdev->dev_class, sent, 3);
560 if (hci_dev_test_flag(hdev, HCI_MGMT))
561 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
563 hci_dev_unlock(hdev);
568 static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
571 struct hci_rp_read_voice_setting *rp = data;
574 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
579 setting = __le16_to_cpu(rp->voice_setting);
581 if (hdev->voice_setting == setting)
584 hdev->voice_setting = setting;
586 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
589 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
594 static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
597 struct hci_ev_status *rp = data;
601 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
606 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
610 setting = get_unaligned_le16(sent);
612 if (hdev->voice_setting == setting)
615 hdev->voice_setting = setting;
617 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
620 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
625 static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
628 struct hci_rp_read_num_supported_iac *rp = data;
630 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
635 hdev->num_iac = rp->num_iac;
637 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
642 static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
645 struct hci_ev_status *rp = data;
646 struct hci_cp_write_ssp_mode *sent;
648 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
650 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
658 hdev->features[1][0] |= LMP_HOST_SSP;
660 hdev->features[1][0] &= ~LMP_HOST_SSP;
665 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
667 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
670 hci_dev_unlock(hdev);
675 static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
678 struct hci_ev_status *rp = data;
679 struct hci_cp_write_sc_support *sent;
681 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
683 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
691 hdev->features[1][0] |= LMP_HOST_SC;
693 hdev->features[1][0] &= ~LMP_HOST_SC;
696 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
698 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
700 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
703 hci_dev_unlock(hdev);
708 static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
711 struct hci_rp_read_local_version *rp = data;
713 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
718 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
719 hci_dev_test_flag(hdev, HCI_CONFIG)) {
720 hdev->hci_ver = rp->hci_ver;
721 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
722 hdev->lmp_ver = rp->lmp_ver;
723 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
724 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
730 static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
733 struct hci_rp_read_enc_key_size *rp = data;
734 struct hci_conn *conn;
736 u8 status = rp->status;
738 bt_dev_dbg(hdev, "status 0x%2.2x", status);
740 handle = le16_to_cpu(rp->handle);
744 conn = hci_conn_hash_lookup_handle(hdev, handle);
750 /* While unexpected, the read_enc_key_size command may fail. The most
751 * secure approach is to then assume the key size is 0 to force a
755 bt_dev_err(hdev, "failed to read key size for handle %u",
757 conn->enc_key_size = 0;
759 conn->enc_key_size = rp->key_size;
763 hci_encrypt_cfm(conn, 0);
766 hci_dev_unlock(hdev);
771 static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
774 struct hci_rp_read_local_commands *rp = data;
776 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
781 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
782 hci_dev_test_flag(hdev, HCI_CONFIG))
783 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
788 static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
791 struct hci_rp_read_auth_payload_to *rp = data;
792 struct hci_conn *conn;
794 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
801 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
803 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
805 hci_dev_unlock(hdev);
810 static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
813 struct hci_rp_write_auth_payload_to *rp = data;
814 struct hci_conn *conn;
817 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
822 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
828 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
830 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
832 hci_dev_unlock(hdev);
837 static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
840 struct hci_rp_read_local_features *rp = data;
842 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
847 memcpy(hdev->features, rp->features, 8);
849 /* Adjust default settings according to features
850 * supported by device. */
852 if (hdev->features[0][0] & LMP_3SLOT)
853 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
855 if (hdev->features[0][0] & LMP_5SLOT)
856 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
858 if (hdev->features[0][1] & LMP_HV2) {
859 hdev->pkt_type |= (HCI_HV2);
860 hdev->esco_type |= (ESCO_HV2);
863 if (hdev->features[0][1] & LMP_HV3) {
864 hdev->pkt_type |= (HCI_HV3);
865 hdev->esco_type |= (ESCO_HV3);
868 if (lmp_esco_capable(hdev))
869 hdev->esco_type |= (ESCO_EV3);
871 if (hdev->features[0][4] & LMP_EV4)
872 hdev->esco_type |= (ESCO_EV4);
874 if (hdev->features[0][4] & LMP_EV5)
875 hdev->esco_type |= (ESCO_EV5);
877 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
878 hdev->esco_type |= (ESCO_2EV3);
880 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
881 hdev->esco_type |= (ESCO_3EV3);
883 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
884 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
889 static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
892 struct hci_rp_read_local_ext_features *rp = data;
894 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
899 if (hdev->max_page < rp->max_page) {
900 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
902 bt_dev_warn(hdev, "broken local ext features page 2");
904 hdev->max_page = rp->max_page;
907 if (rp->page < HCI_MAX_PAGES)
908 memcpy(hdev->features[rp->page], rp->features, 8);
913 static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
916 struct hci_rp_read_flow_control_mode *rp = data;
918 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
923 hdev->flow_ctl_mode = rp->mode;
928 static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
931 struct hci_rp_read_buffer_size *rp = data;
933 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
938 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
939 hdev->sco_mtu = rp->sco_mtu;
940 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
941 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
943 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
948 hdev->acl_cnt = hdev->acl_pkts;
949 hdev->sco_cnt = hdev->sco_pkts;
951 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
952 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
957 static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
960 struct hci_rp_read_bd_addr *rp = data;
962 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
967 if (test_bit(HCI_INIT, &hdev->flags))
968 bacpy(&hdev->bdaddr, &rp->bdaddr);
970 if (hci_dev_test_flag(hdev, HCI_SETUP))
971 bacpy(&hdev->setup_addr, &rp->bdaddr);
976 static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
979 struct hci_rp_read_local_pairing_opts *rp = data;
981 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
986 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
987 hci_dev_test_flag(hdev, HCI_CONFIG)) {
988 hdev->pairing_opts = rp->pairing_opts;
989 hdev->max_enc_key_size = rp->max_key_size;
995 static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
998 struct hci_rp_read_page_scan_activity *rp = data;
1000 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1005 if (test_bit(HCI_INIT, &hdev->flags)) {
1006 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
1007 hdev->page_scan_window = __le16_to_cpu(rp->window);
1013 static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1014 struct sk_buff *skb)
1016 struct hci_ev_status *rp = data;
1017 struct hci_cp_write_page_scan_activity *sent;
1019 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1024 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1028 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1029 hdev->page_scan_window = __le16_to_cpu(sent->window);
1034 static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1035 struct sk_buff *skb)
1037 struct hci_rp_read_page_scan_type *rp = data;
1039 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1044 if (test_bit(HCI_INIT, &hdev->flags))
1045 hdev->page_scan_type = rp->type;
1050 static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1051 struct sk_buff *skb)
1053 struct hci_ev_status *rp = data;
1056 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1061 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1063 hdev->page_scan_type = *type;
1068 static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1069 struct sk_buff *skb)
1071 struct hci_rp_read_data_block_size *rp = data;
1073 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1078 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1079 hdev->block_len = __le16_to_cpu(rp->block_len);
1080 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1082 hdev->block_cnt = hdev->num_blocks;
1084 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1085 hdev->block_cnt, hdev->block_len);
1090 static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1091 struct sk_buff *skb)
1093 struct hci_rp_read_clock *rp = data;
1094 struct hci_cp_read_clock *cp;
1095 struct hci_conn *conn;
1097 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1104 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1108 if (cp->which == 0x00) {
1109 hdev->clock = le32_to_cpu(rp->clock);
1113 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1115 conn->clock = le32_to_cpu(rp->clock);
1116 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1120 hci_dev_unlock(hdev);
1124 static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1125 struct sk_buff *skb)
1127 struct hci_rp_read_local_amp_info *rp = data;
1129 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1134 hdev->amp_status = rp->amp_status;
1135 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1136 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1137 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1138 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1139 hdev->amp_type = rp->amp_type;
1140 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1141 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1142 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1143 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1148 static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1149 struct sk_buff *skb)
1151 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1153 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1158 hdev->inq_tx_power = rp->tx_power;
1163 static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1164 struct sk_buff *skb)
1166 struct hci_rp_read_def_err_data_reporting *rp = data;
1168 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1173 hdev->err_data_reporting = rp->err_data_reporting;
1178 static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1179 struct sk_buff *skb)
1181 struct hci_ev_status *rp = data;
1182 struct hci_cp_write_def_err_data_reporting *cp;
1184 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1189 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1193 hdev->err_data_reporting = cp->err_data_reporting;
1198 static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1199 struct sk_buff *skb)
1201 struct hci_rp_pin_code_reply *rp = data;
1202 struct hci_cp_pin_code_reply *cp;
1203 struct hci_conn *conn;
1205 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1209 if (hci_dev_test_flag(hdev, HCI_MGMT))
1210 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1215 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1219 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1221 conn->pin_length = cp->pin_len;
1224 hci_dev_unlock(hdev);
1228 static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1229 struct sk_buff *skb)
1231 struct hci_rp_pin_code_neg_reply *rp = data;
1233 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1237 if (hci_dev_test_flag(hdev, HCI_MGMT))
1238 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1241 hci_dev_unlock(hdev);
1246 static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1247 struct sk_buff *skb)
1249 struct hci_rp_le_read_buffer_size *rp = data;
1251 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1256 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1257 hdev->le_pkts = rp->le_max_pkt;
1259 hdev->le_cnt = hdev->le_pkts;
1261 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1266 static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1267 struct sk_buff *skb)
1269 struct hci_rp_le_read_local_features *rp = data;
1271 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1276 memcpy(hdev->le_features, rp->features, 8);
1281 static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1282 struct sk_buff *skb)
1284 struct hci_rp_le_read_adv_tx_power *rp = data;
1286 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1291 hdev->adv_tx_power = rp->tx_power;
1296 static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1297 struct sk_buff *skb)
1299 struct hci_rp_user_confirm_reply *rp = data;
1301 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1305 if (hci_dev_test_flag(hdev, HCI_MGMT))
1306 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1309 hci_dev_unlock(hdev);
1314 static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1315 struct sk_buff *skb)
1317 struct hci_rp_user_confirm_reply *rp = data;
1319 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1323 if (hci_dev_test_flag(hdev, HCI_MGMT))
1324 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1325 ACL_LINK, 0, rp->status);
1327 hci_dev_unlock(hdev);
1332 static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1333 struct sk_buff *skb)
1335 struct hci_rp_user_confirm_reply *rp = data;
1337 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1341 if (hci_dev_test_flag(hdev, HCI_MGMT))
1342 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1345 hci_dev_unlock(hdev);
1350 static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1351 struct sk_buff *skb)
1353 struct hci_rp_user_confirm_reply *rp = data;
1355 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1359 if (hci_dev_test_flag(hdev, HCI_MGMT))
1360 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1361 ACL_LINK, 0, rp->status);
1363 hci_dev_unlock(hdev);
1368 static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1369 struct sk_buff *skb)
1371 struct hci_rp_read_local_oob_data *rp = data;
1373 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1378 static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1379 struct sk_buff *skb)
1381 struct hci_rp_read_local_oob_ext_data *rp = data;
1383 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1388 static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1389 struct sk_buff *skb)
1391 struct hci_ev_status *rp = data;
1394 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1399 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1405 bacpy(&hdev->random_addr, sent);
1407 if (!bacmp(&hdev->rpa, sent)) {
1408 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1409 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1410 secs_to_jiffies(hdev->rpa_timeout));
1413 hci_dev_unlock(hdev);
1418 static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1419 struct sk_buff *skb)
1421 struct hci_ev_status *rp = data;
1422 struct hci_cp_le_set_default_phy *cp;
1424 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1429 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1435 hdev->le_tx_def_phys = cp->tx_phys;
1436 hdev->le_rx_def_phys = cp->rx_phys;
1438 hci_dev_unlock(hdev);
1443 static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1444 struct sk_buff *skb)
1446 struct hci_ev_status *rp = data;
1447 struct hci_cp_le_set_adv_set_rand_addr *cp;
1448 struct adv_info *adv;
1450 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1455 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1456 /* Update only in case the adv instance since handle 0x00 shall be using
1457 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1458 * non-extended adverting.
1460 if (!cp || !cp->handle)
1465 adv = hci_find_adv_instance(hdev, cp->handle);
1467 bacpy(&adv->random_addr, &cp->bdaddr);
1468 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1469 adv->rpa_expired = false;
1470 queue_delayed_work(hdev->workqueue,
1471 &adv->rpa_expired_cb,
1472 secs_to_jiffies(hdev->rpa_timeout));
1476 hci_dev_unlock(hdev);
1481 static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1482 struct sk_buff *skb)
1484 struct hci_ev_status *rp = data;
1488 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1493 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1499 err = hci_remove_adv_instance(hdev, *instance);
1501 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1504 hci_dev_unlock(hdev);
1509 static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1510 struct sk_buff *skb)
1512 struct hci_ev_status *rp = data;
1513 struct adv_info *adv, *n;
1516 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1521 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1526 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1527 u8 instance = adv->instance;
1529 err = hci_remove_adv_instance(hdev, instance);
1531 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1535 hci_dev_unlock(hdev);
1540 static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1541 struct sk_buff *skb)
1543 struct hci_rp_le_read_transmit_power *rp = data;
1545 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1550 hdev->min_le_tx_power = rp->min_le_tx_power;
1551 hdev->max_le_tx_power = rp->max_le_tx_power;
1556 static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1557 struct sk_buff *skb)
1559 struct hci_ev_status *rp = data;
1560 struct hci_cp_le_set_privacy_mode *cp;
1561 struct hci_conn_params *params;
1563 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1568 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1574 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1576 params->privacy_mode = cp->mode;
1578 hci_dev_unlock(hdev);
1583 static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1584 struct sk_buff *skb)
1586 struct hci_ev_status *rp = data;
1589 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1594 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1600 /* If we're doing connection initiation as peripheral. Set a
1601 * timeout in case something goes wrong.
1604 struct hci_conn *conn;
1606 hci_dev_set_flag(hdev, HCI_LE_ADV);
1608 conn = hci_lookup_le_connect(hdev);
1610 queue_delayed_work(hdev->workqueue,
1611 &conn->le_conn_timeout,
1612 conn->conn_timeout);
1614 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1617 hci_dev_unlock(hdev);
1622 static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1623 struct sk_buff *skb)
1625 struct hci_cp_le_set_ext_adv_enable *cp;
1626 struct hci_cp_ext_adv_set *set;
1627 struct adv_info *adv = NULL, *n;
1628 struct hci_ev_status *rp = data;
1630 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1635 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1639 set = (void *)cp->data;
1643 if (cp->num_of_sets)
1644 adv = hci_find_adv_instance(hdev, set->handle);
1647 struct hci_conn *conn;
1649 hci_dev_set_flag(hdev, HCI_LE_ADV);
1652 adv->enabled = true;
1654 conn = hci_lookup_le_connect(hdev);
1656 queue_delayed_work(hdev->workqueue,
1657 &conn->le_conn_timeout,
1658 conn->conn_timeout);
1660 if (cp->num_of_sets) {
1662 adv->enabled = false;
1664 /* If just one instance was disabled check if there are
1665 * any other instance enabled before clearing HCI_LE_ADV
1667 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1673 /* All instances shall be considered disabled */
1674 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1676 adv->enabled = false;
1679 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1683 hci_dev_unlock(hdev);
1687 static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1688 struct sk_buff *skb)
1690 struct hci_cp_le_set_scan_param *cp;
1691 struct hci_ev_status *rp = data;
1693 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1698 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1704 hdev->le_scan_type = cp->type;
1706 hci_dev_unlock(hdev);
1711 static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1712 struct sk_buff *skb)
1714 struct hci_cp_le_set_ext_scan_params *cp;
1715 struct hci_ev_status *rp = data;
1716 struct hci_cp_le_scan_phy_params *phy_param;
1718 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1723 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1727 phy_param = (void *)cp->data;
1731 hdev->le_scan_type = phy_param->type;
1733 hci_dev_unlock(hdev);
1738 static bool has_pending_adv_report(struct hci_dev *hdev)
1740 struct discovery_state *d = &hdev->discovery;
1742 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1745 static void clear_pending_adv_report(struct hci_dev *hdev)
1747 struct discovery_state *d = &hdev->discovery;
1749 bacpy(&d->last_adv_addr, BDADDR_ANY);
1750 d->last_adv_data_len = 0;
1754 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1755 u8 bdaddr_type, s8 rssi, u32 flags,
1758 struct discovery_state *d = &hdev->discovery;
1760 if (len > HCI_MAX_AD_LENGTH)
1763 bacpy(&d->last_adv_addr, bdaddr);
1764 d->last_adv_addr_type = bdaddr_type;
1765 d->last_adv_rssi = rssi;
1766 d->last_adv_flags = flags;
1767 memcpy(d->last_adv_data, data, len);
1768 d->last_adv_data_len = len;
1772 static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1777 case LE_SCAN_ENABLE:
1778 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1779 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1780 clear_pending_adv_report(hdev);
1781 if (hci_dev_test_flag(hdev, HCI_MESH))
1782 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1785 case LE_SCAN_DISABLE:
1786 /* We do this here instead of when setting DISCOVERY_STOPPED
1787 * since the latter would potentially require waiting for
1788 * inquiry to stop too.
1790 if (has_pending_adv_report(hdev)) {
1791 struct discovery_state *d = &hdev->discovery;
1793 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1794 d->last_adv_addr_type, NULL,
1795 d->last_adv_rssi, d->last_adv_flags,
1797 d->last_adv_data_len, NULL, 0, 0);
1800 /* Cancel this timer so that we don't try to disable scanning
1801 * when it's already disabled.
1803 cancel_delayed_work(&hdev->le_scan_disable);
1805 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1807 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1808 * interrupted scanning due to a connect request. Mark
1809 * therefore discovery as stopped.
1811 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1812 #ifndef TIZEN_BT /* The below line is kernel bug. */
1813 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1815 hci_le_discovery_set_state(hdev, DISCOVERY_STOPPED);
1817 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1818 hdev->discovery.state == DISCOVERY_FINDING)
1819 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1824 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1829 hci_dev_unlock(hdev);
1832 static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1833 struct sk_buff *skb)
1835 struct hci_cp_le_set_scan_enable *cp;
1836 struct hci_ev_status *rp = data;
1838 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1843 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1847 le_set_scan_enable_complete(hdev, cp->enable);
1852 static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1853 struct sk_buff *skb)
1855 struct hci_cp_le_set_ext_scan_enable *cp;
1856 struct hci_ev_status *rp = data;
1858 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1863 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1867 le_set_scan_enable_complete(hdev, cp->enable);
1872 static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1873 struct sk_buff *skb)
1875 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1877 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1883 hdev->le_num_of_adv_sets = rp->num_of_sets;
1888 static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1889 struct sk_buff *skb)
1891 struct hci_rp_le_read_accept_list_size *rp = data;
1893 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1898 hdev->le_accept_list_size = rp->size;
1903 static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1904 struct sk_buff *skb)
1906 struct hci_ev_status *rp = data;
1908 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1914 hci_bdaddr_list_clear(&hdev->le_accept_list);
1915 hci_dev_unlock(hdev);
1920 static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1921 struct sk_buff *skb)
1923 struct hci_cp_le_add_to_accept_list *sent;
1924 struct hci_ev_status *rp = data;
1926 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1931 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1936 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1938 hci_dev_unlock(hdev);
1943 static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1944 struct sk_buff *skb)
1946 struct hci_cp_le_del_from_accept_list *sent;
1947 struct hci_ev_status *rp = data;
1949 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1954 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1959 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1961 hci_dev_unlock(hdev);
1966 static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1967 struct sk_buff *skb)
1969 struct hci_rp_le_read_supported_states *rp = data;
1971 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1976 memcpy(hdev->le_states, rp->le_states, 8);
1981 static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1982 struct sk_buff *skb)
1984 struct hci_rp_le_read_def_data_len *rp = data;
1986 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1991 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1992 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1997 static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1998 struct sk_buff *skb)
2000 struct hci_cp_le_write_def_data_len *sent;
2001 struct hci_ev_status *rp = data;
2003 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2008 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
2012 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
2013 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2018 static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2019 struct sk_buff *skb)
2021 struct hci_cp_le_add_to_resolv_list *sent;
2022 struct hci_ev_status *rp = data;
2024 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2029 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2034 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2035 sent->bdaddr_type, sent->peer_irk,
2037 hci_dev_unlock(hdev);
2042 static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2043 struct sk_buff *skb)
2045 struct hci_cp_le_del_from_resolv_list *sent;
2046 struct hci_ev_status *rp = data;
2048 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2053 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2058 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2060 hci_dev_unlock(hdev);
2065 static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2066 struct sk_buff *skb)
2068 struct hci_ev_status *rp = data;
2070 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2076 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2077 hci_dev_unlock(hdev);
2082 static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2083 struct sk_buff *skb)
2085 struct hci_rp_le_read_resolv_list_size *rp = data;
2087 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2092 hdev->le_resolv_list_size = rp->size;
2097 static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2098 struct sk_buff *skb)
2100 struct hci_ev_status *rp = data;
2103 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2108 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2115 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2117 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2119 hci_dev_unlock(hdev);
2124 static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2125 struct sk_buff *skb)
2127 struct hci_rp_le_read_max_data_len *rp = data;
2129 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2138 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2139 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2140 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2141 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2144 mgmt_le_read_maximum_data_length_complete(hdev, rp->status);
2145 hci_dev_unlock(hdev);
2151 static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2152 struct sk_buff *skb)
2154 struct hci_cp_write_le_host_supported *sent;
2155 struct hci_ev_status *rp = data;
2157 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2162 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2169 hdev->features[1][0] |= LMP_HOST_LE;
2170 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2172 hdev->features[1][0] &= ~LMP_HOST_LE;
2173 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2174 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2178 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2180 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2182 hci_dev_unlock(hdev);
2187 static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2188 struct sk_buff *skb)
2190 struct hci_cp_le_set_adv_param *cp;
2191 struct hci_ev_status *rp = data;
2193 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2198 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2203 hdev->adv_addr_type = cp->own_address_type;
2204 hci_dev_unlock(hdev);
2209 static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2210 struct sk_buff *skb)
2212 struct hci_rp_le_set_ext_adv_params *rp = data;
2213 struct hci_cp_le_set_ext_adv_params *cp;
2214 struct adv_info *adv_instance;
2216 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2221 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2226 hdev->adv_addr_type = cp->own_addr_type;
2228 /* Store in hdev for instance 0 */
2229 hdev->adv_tx_power = rp->tx_power;
2231 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2233 adv_instance->tx_power = rp->tx_power;
2235 /* Update adv data as tx power is known now */
2236 hci_update_adv_data(hdev, cp->handle);
2238 hci_dev_unlock(hdev);
2244 static u8 hci_cc_enable_rssi(struct hci_dev *hdev, void *data,
2245 struct sk_buff *skb)
2247 struct hci_cc_rsp_enable_rssi *rp = data;
2249 BT_DBG("hci_cc_enable_rssi - %s status 0x%2.2x Event_LE_ext_Opcode 0x%2.2x",
2250 hdev->name, rp->status, rp->le_ext_opcode);
2252 mgmt_enable_rssi_cc(hdev, rp, rp->status);
2257 static u8 hci_cc_get_raw_rssi(struct hci_dev *hdev, void *data,
2258 struct sk_buff *skb)
2260 struct hci_cc_rp_get_raw_rssi *rp = data;
2262 BT_DBG("hci_cc_get_raw_rssi- %s Get Raw Rssi Response[%2.2x %4.4x %2.2X]",
2263 hdev->name, rp->status, rp->conn_handle, rp->rssi_dbm);
2265 mgmt_raw_rssi_response(hdev, rp, rp->status);
2270 static void hci_vendor_ext_rssi_link_alert_evt(struct hci_dev *hdev,
2271 struct sk_buff *skb)
2273 struct hci_ev_vendor_specific_rssi_alert *ev = (void *)skb->data;
2275 BT_DBG("RSSI event LE_RSSI_LINK_ALERT %X", LE_RSSI_LINK_ALERT);
2277 mgmt_rssi_alert_evt(hdev, ev->conn_handle, ev->alert_type,
2281 static void hci_vendor_specific_group_ext_evt(struct hci_dev *hdev,
2282 struct sk_buff *skb)
2284 struct hci_ev_ext_vendor_specific *ev = (void *)skb->data;
2285 __u8 event_le_ext_sub_code;
2287 BT_DBG("RSSI event LE_META_VENDOR_SPECIFIC_GROUP_EVENT: %X",
2288 LE_META_VENDOR_SPECIFIC_GROUP_EVENT);
2290 skb_pull(skb, sizeof(*ev));
2291 event_le_ext_sub_code = ev->event_le_ext_sub_code;
2293 switch (event_le_ext_sub_code) {
2294 case LE_RSSI_LINK_ALERT:
2295 hci_vendor_ext_rssi_link_alert_evt(hdev, skb);
2303 static void hci_vendor_multi_adv_state_change_evt(struct hci_dev *hdev,
2304 struct sk_buff *skb)
2306 struct hci_ev_vendor_specific_multi_adv_state *ev = (void *)skb->data;
2308 BT_DBG("LE_MULTI_ADV_STATE_CHANGE_SUB_EVENT");
2310 mgmt_multi_adv_state_change_evt(hdev, ev->adv_instance,
2311 ev->state_change_reason,
2312 ev->connection_handle);
2315 static void hci_vendor_specific_evt(struct hci_dev *hdev, void *data,
2316 struct sk_buff *skb)
2318 struct hci_ev_vendor_specific *ev = (void *)skb->data;
2319 __u8 event_sub_code;
2321 BT_DBG("hci_vendor_specific_evt");
2323 skb_pull(skb, sizeof(*ev));
2324 event_sub_code = ev->event_sub_code;
2326 switch (event_sub_code) {
2327 case LE_META_VENDOR_SPECIFIC_GROUP_EVENT:
2328 hci_vendor_specific_group_ext_evt(hdev, skb);
2331 case LE_MULTI_ADV_STATE_CHANGE_SUB_EVENT:
2332 hci_vendor_multi_adv_state_change_evt(hdev, skb);
2341 static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2342 struct sk_buff *skb)
2344 struct hci_rp_read_rssi *rp = data;
2345 struct hci_conn *conn;
2347 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2354 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2356 conn->rssi = rp->rssi;
2358 hci_dev_unlock(hdev);
2363 static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2364 struct sk_buff *skb)
2366 struct hci_cp_read_tx_power *sent;
2367 struct hci_rp_read_tx_power *rp = data;
2368 struct hci_conn *conn;
2370 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2375 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2381 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2385 switch (sent->type) {
2387 conn->tx_power = rp->tx_power;
2390 conn->max_tx_power = rp->tx_power;
2395 hci_dev_unlock(hdev);
2399 static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2400 struct sk_buff *skb)
2402 struct hci_ev_status *rp = data;
2405 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2410 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2412 hdev->ssp_debug_mode = *mode;
2417 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2419 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2422 hci_conn_check_pending(hdev);
2426 set_bit(HCI_INQUIRY, &hdev->flags);
2429 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2431 struct hci_cp_create_conn *cp;
2432 struct hci_conn *conn;
2434 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2436 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2442 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2444 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2447 if (conn && conn->state == BT_CONNECT) {
2448 if (status != 0x0c || conn->attempt > 2) {
2449 conn->state = BT_CLOSED;
2450 hci_connect_cfm(conn, status);
2453 conn->state = BT_CONNECT2;
2457 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
2460 bt_dev_err(hdev, "no memory for new connection");
2464 hci_dev_unlock(hdev);
2467 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2469 struct hci_cp_add_sco *cp;
2470 struct hci_conn *acl, *sco;
2473 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2478 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2482 handle = __le16_to_cpu(cp->handle);
2484 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2488 acl = hci_conn_hash_lookup_handle(hdev, handle);
2492 sco->state = BT_CLOSED;
2494 hci_connect_cfm(sco, status);
2499 hci_dev_unlock(hdev);
2502 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2504 struct hci_cp_auth_requested *cp;
2505 struct hci_conn *conn;
2507 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2512 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2518 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2520 if (conn->state == BT_CONFIG) {
2521 hci_connect_cfm(conn, status);
2522 hci_conn_drop(conn);
2526 hci_dev_unlock(hdev);
2529 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2531 struct hci_cp_set_conn_encrypt *cp;
2532 struct hci_conn *conn;
2534 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2539 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2545 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2547 if (conn->state == BT_CONFIG) {
2548 hci_connect_cfm(conn, status);
2549 hci_conn_drop(conn);
2553 hci_dev_unlock(hdev);
2556 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2557 struct hci_conn *conn)
2559 if (conn->state != BT_CONFIG || !conn->out)
2562 if (conn->pending_sec_level == BT_SECURITY_SDP)
2565 /* Only request authentication for SSP connections or non-SSP
2566 * devices with sec_level MEDIUM or HIGH or if MITM protection
2569 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2570 conn->pending_sec_level != BT_SECURITY_FIPS &&
2571 conn->pending_sec_level != BT_SECURITY_HIGH &&
2572 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2578 static int hci_resolve_name(struct hci_dev *hdev,
2579 struct inquiry_entry *e)
2581 struct hci_cp_remote_name_req cp;
2583 memset(&cp, 0, sizeof(cp));
2585 bacpy(&cp.bdaddr, &e->data.bdaddr);
2586 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2587 cp.pscan_mode = e->data.pscan_mode;
2588 cp.clock_offset = e->data.clock_offset;
2590 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2593 static bool hci_resolve_next_name(struct hci_dev *hdev)
2595 struct discovery_state *discov = &hdev->discovery;
2596 struct inquiry_entry *e;
2598 if (list_empty(&discov->resolve))
2601 /* We should stop if we already spent too much time resolving names. */
2602 if (time_after(jiffies, discov->name_resolve_timeout)) {
2603 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2607 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2611 if (hci_resolve_name(hdev, e) == 0) {
2612 e->name_state = NAME_PENDING;
2619 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2620 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2622 struct discovery_state *discov = &hdev->discovery;
2623 struct inquiry_entry *e;
2626 /* Update the mgmt connected state if necessary. Be careful with
2627 * conn objects that exist but are not (yet) connected however.
2628 * Only those in BT_CONFIG or BT_CONNECTED states can be
2629 * considered connected.
2632 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED)) {
2633 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2634 mgmt_device_connected(hdev, conn, 0, name, name_len);
2636 mgmt_device_name_update(hdev, bdaddr, name, name_len);
2640 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2641 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2642 mgmt_device_connected(hdev, conn, name, name_len);
2645 if (discov->state == DISCOVERY_STOPPED)
2648 if (discov->state == DISCOVERY_STOPPING)
2649 goto discov_complete;
2651 if (discov->state != DISCOVERY_RESOLVING)
2654 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2655 /* If the device was not found in a list of found devices names of which
2656 * are pending. there is no need to continue resolving a next name as it
2657 * will be done upon receiving another Remote Name Request Complete
2664 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2665 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2668 if (hci_resolve_next_name(hdev))
2672 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2675 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2677 struct hci_cp_remote_name_req *cp;
2678 struct hci_conn *conn;
2680 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2682 /* If successful wait for the name req complete event before
2683 * checking for the need to do authentication */
2687 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2693 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2695 if (hci_dev_test_flag(hdev, HCI_MGMT))
2696 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2701 if (!hci_outgoing_auth_needed(hdev, conn))
2704 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2705 struct hci_cp_auth_requested auth_cp;
2707 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2709 auth_cp.handle = __cpu_to_le16(conn->handle);
2710 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2711 sizeof(auth_cp), &auth_cp);
2715 hci_dev_unlock(hdev);
2718 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2720 struct hci_cp_read_remote_features *cp;
2721 struct hci_conn *conn;
2723 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2728 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2734 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2736 if (conn->state == BT_CONFIG) {
2737 hci_connect_cfm(conn, status);
2738 hci_conn_drop(conn);
2742 hci_dev_unlock(hdev);
2745 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2747 struct hci_cp_read_remote_ext_features *cp;
2748 struct hci_conn *conn;
2750 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2755 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2761 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2763 if (conn->state == BT_CONFIG) {
2764 hci_connect_cfm(conn, status);
2765 hci_conn_drop(conn);
2769 hci_dev_unlock(hdev);
2772 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2774 struct hci_cp_setup_sync_conn *cp;
2775 struct hci_conn *acl, *sco;
2778 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2783 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2787 handle = __le16_to_cpu(cp->handle);
2789 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2793 acl = hci_conn_hash_lookup_handle(hdev, handle);
2797 sco->state = BT_CLOSED;
2799 hci_connect_cfm(sco, status);
2804 hci_dev_unlock(hdev);
2807 static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2809 struct hci_cp_enhanced_setup_sync_conn *cp;
2810 struct hci_conn *acl, *sco;
2813 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2818 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2822 handle = __le16_to_cpu(cp->handle);
2824 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2828 acl = hci_conn_hash_lookup_handle(hdev, handle);
2832 sco->state = BT_CLOSED;
2834 hci_connect_cfm(sco, status);
2839 hci_dev_unlock(hdev);
2842 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2844 struct hci_cp_sniff_mode *cp;
2845 struct hci_conn *conn;
2847 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2852 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2858 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2860 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2862 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2863 hci_sco_setup(conn, status);
2866 hci_dev_unlock(hdev);
2869 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2871 struct hci_cp_exit_sniff_mode *cp;
2872 struct hci_conn *conn;
2874 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2879 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2885 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2887 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2889 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2890 hci_sco_setup(conn, status);
2893 hci_dev_unlock(hdev);
2896 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2898 struct hci_cp_disconnect *cp;
2899 struct hci_conn_params *params;
2900 struct hci_conn *conn;
2903 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2905 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2906 * otherwise cleanup the connection immediately.
2908 if (!status && !hdev->suspended)
2911 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2917 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2922 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2923 conn->dst_type, status);
2925 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2926 hdev->cur_adv_instance = conn->adv_instance;
2927 hci_enable_advertising(hdev);
2933 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2935 if (conn->type == ACL_LINK) {
2936 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2937 hci_remove_link_key(hdev, &conn->dst);
2940 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2942 switch (params->auto_connect) {
2943 case HCI_AUTO_CONN_LINK_LOSS:
2944 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2948 case HCI_AUTO_CONN_DIRECT:
2949 case HCI_AUTO_CONN_ALWAYS:
2950 list_del_init(¶ms->action);
2951 list_add(¶ms->action, &hdev->pend_le_conns);
2959 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2960 cp->reason, mgmt_conn);
2962 hci_disconn_cfm(conn, cp->reason);
2965 /* If the disconnection failed for any reason, the upper layer
2966 * does not retry to disconnect in current implementation.
2967 * Hence, we need to do some basic cleanup here and re-enable
2968 * advertising if necessary.
2972 hci_dev_unlock(hdev);
2975 static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2977 /* When using controller based address resolution, then the new
2978 * address types 0x02 and 0x03 are used. These types need to be
2979 * converted back into either public address or random address type
2982 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2985 return ADDR_LE_DEV_PUBLIC;
2986 case ADDR_LE_DEV_RANDOM_RESOLVED:
2989 return ADDR_LE_DEV_RANDOM;
2997 static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2998 u8 peer_addr_type, u8 own_address_type,
3001 struct hci_conn *conn;
3003 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
3008 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
3010 /* Store the initiator and responder address information which
3011 * is needed for SMP. These values will not change during the
3012 * lifetime of the connection.
3014 conn->init_addr_type = own_address_type;
3015 if (own_address_type == ADDR_LE_DEV_RANDOM)
3016 bacpy(&conn->init_addr, &hdev->random_addr);
3018 bacpy(&conn->init_addr, &hdev->bdaddr);
3020 conn->resp_addr_type = peer_addr_type;
3021 bacpy(&conn->resp_addr, peer_addr);
3024 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
3026 struct hci_cp_le_create_conn *cp;
3028 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3030 /* All connection failure handling is taken care of by the
3031 * hci_conn_failed function which is triggered by the HCI
3032 * request completion callbacks used for connecting.
3037 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
3043 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
3044 cp->own_address_type, cp->filter_policy);
3046 hci_dev_unlock(hdev);
3049 static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
3051 struct hci_cp_le_ext_create_conn *cp;
3053 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3055 /* All connection failure handling is taken care of by the
3056 * hci_conn_failed function which is triggered by the HCI
3057 * request completion callbacks used for connecting.
3062 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
3068 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
3069 cp->own_addr_type, cp->filter_policy);
3071 hci_dev_unlock(hdev);
3074 static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
3076 struct hci_cp_le_read_remote_features *cp;
3077 struct hci_conn *conn;
3079 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3084 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
3090 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3092 if (conn->state == BT_CONFIG) {
3093 hci_connect_cfm(conn, status);
3094 hci_conn_drop(conn);
3098 hci_dev_unlock(hdev);
3101 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
3103 struct hci_cp_le_start_enc *cp;
3104 struct hci_conn *conn;
3106 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3113 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
3117 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3121 if (conn->state != BT_CONNECTED)
3124 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3125 hci_conn_drop(conn);
3128 hci_dev_unlock(hdev);
3131 static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
3133 struct hci_cp_switch_role *cp;
3134 struct hci_conn *conn;
3136 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3141 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3147 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3149 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3151 hci_dev_unlock(hdev);
3154 static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3155 struct sk_buff *skb)
3157 struct hci_ev_status *ev = data;
3158 struct discovery_state *discov = &hdev->discovery;
3159 struct inquiry_entry *e;
3161 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3163 hci_conn_check_pending(hdev);
3165 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3168 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3169 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3171 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3176 if (discov->state != DISCOVERY_FINDING)
3179 if (list_empty(&discov->resolve)) {
3180 /* When BR/EDR inquiry is active and no LE scanning is in
3181 * progress, then change discovery state to indicate completion.
3183 * When running LE scanning and BR/EDR inquiry simultaneously
3184 * and the LE scan already finished, then change the discovery
3185 * state to indicate completion.
3187 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3188 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3189 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3193 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3194 if (e && hci_resolve_name(hdev, e) == 0) {
3195 e->name_state = NAME_PENDING;
3196 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3197 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3199 /* When BR/EDR inquiry is active and no LE scanning is in
3200 * progress, then change discovery state to indicate completion.
3202 * When running LE scanning and BR/EDR inquiry simultaneously
3203 * and the LE scan already finished, then change the discovery
3204 * state to indicate completion.
3206 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3207 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3208 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3212 hci_dev_unlock(hdev);
3215 static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3216 struct sk_buff *skb)
3218 struct hci_ev_inquiry_result *ev = edata;
3219 struct inquiry_data data;
3222 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3223 flex_array_size(ev, info, ev->num)))
3226 bt_dev_dbg(hdev, "num %d", ev->num);
3231 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3236 for (i = 0; i < ev->num; i++) {
3237 struct inquiry_info *info = &ev->info[i];
3240 bacpy(&data.bdaddr, &info->bdaddr);
3241 data.pscan_rep_mode = info->pscan_rep_mode;
3242 data.pscan_period_mode = info->pscan_period_mode;
3243 data.pscan_mode = info->pscan_mode;
3244 memcpy(data.dev_class, info->dev_class, 3);
3245 data.clock_offset = info->clock_offset;
3246 data.rssi = HCI_RSSI_INVALID;
3247 data.ssp_mode = 0x00;
3249 flags = hci_inquiry_cache_update(hdev, &data, false);
3251 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3252 info->dev_class, HCI_RSSI_INVALID,
3253 flags, NULL, 0, NULL, 0, 0);
3256 hci_dev_unlock(hdev);
3259 static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3260 struct sk_buff *skb)
3262 struct hci_ev_conn_complete *ev = data;
3263 struct hci_conn *conn;
3264 u8 status = ev->status;
3266 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3270 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3272 /* In case of error status and there is no connection pending
3273 * just unlock as there is nothing to cleanup.
3278 /* Connection may not exist if auto-connected. Check the bredr
3279 * allowlist to see if this device is allowed to auto connect.
3280 * If link is an ACL type, create a connection class
3283 * Auto-connect will only occur if the event filter is
3284 * programmed with a given address. Right now, event filter is
3285 * only used during suspend.
3287 if (ev->link_type == ACL_LINK &&
3288 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3291 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3294 bt_dev_err(hdev, "no memory for new conn");
3298 if (ev->link_type != SCO_LINK)
3301 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3306 conn->type = SCO_LINK;
3310 /* The HCI_Connection_Complete event is only sent once per connection.
3311 * Processing it more than once per connection can corrupt kernel memory.
3313 * As the connection handle is set here for the first time, it indicates
3314 * whether the connection is already set up.
3316 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
3317 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3322 conn->handle = __le16_to_cpu(ev->handle);
3323 if (conn->handle > HCI_CONN_HANDLE_MAX) {
3324 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
3325 conn->handle, HCI_CONN_HANDLE_MAX);
3326 status = HCI_ERROR_INVALID_PARAMETERS;
3330 if (conn->type == ACL_LINK) {
3331 conn->state = BT_CONFIG;
3332 hci_conn_hold(conn);
3334 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3335 !hci_find_link_key(hdev, &ev->bdaddr))
3336 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3338 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3340 conn->state = BT_CONNECTED;
3342 hci_debugfs_create_conn(conn);
3343 hci_conn_add_sysfs(conn);
3345 if (test_bit(HCI_AUTH, &hdev->flags))
3346 set_bit(HCI_CONN_AUTH, &conn->flags);
3348 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3349 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3351 /* Get remote features */
3352 if (conn->type == ACL_LINK) {
3353 struct hci_cp_read_remote_features cp;
3354 cp.handle = ev->handle;
3355 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3358 hci_update_scan(hdev);
3361 /* Set packet type for incoming connection */
3362 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3363 struct hci_cp_change_conn_ptype cp;
3364 cp.handle = ev->handle;
3365 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3366 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3371 if (get_link_mode(conn) & HCI_LM_MASTER)
3372 hci_conn_change_supervision_timeout(conn,
3373 LINK_SUPERVISION_TIMEOUT);
3377 if (conn->type == ACL_LINK)
3378 hci_sco_setup(conn, ev->status);
3382 hci_conn_failed(conn, status);
3383 } else if (ev->link_type == SCO_LINK) {
3384 switch (conn->setting & SCO_AIRMODE_MASK) {
3385 case SCO_AIRMODE_CVSD:
3387 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3391 hci_connect_cfm(conn, status);
3395 hci_dev_unlock(hdev);
3397 hci_conn_check_pending(hdev);
3400 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3402 struct hci_cp_reject_conn_req cp;
3404 bacpy(&cp.bdaddr, bdaddr);
3405 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3406 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3409 static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3410 struct sk_buff *skb)
3412 struct hci_ev_conn_request *ev = data;
3413 int mask = hdev->link_mode;
3414 struct inquiry_entry *ie;
3415 struct hci_conn *conn;
3418 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3420 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3423 if (!(mask & HCI_LM_ACCEPT)) {
3424 hci_reject_conn(hdev, &ev->bdaddr);
3430 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3432 hci_reject_conn(hdev, &ev->bdaddr);
3436 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3437 * connection. These features are only touched through mgmt so
3438 * only do the checks if HCI_MGMT is set.
3440 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3441 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3442 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3444 hci_reject_conn(hdev, &ev->bdaddr);
3448 /* Connection accepted */
3450 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3452 memcpy(ie->data.dev_class, ev->dev_class, 3);
3455 if ((ev->link_type == SCO_LINK || ev->link_type == ESCO_LINK) &&
3456 hci_conn_hash_lookup_sco(hdev)) {
3457 struct hci_cp_reject_conn_req cp;
3459 bacpy(&cp.bdaddr, &ev->bdaddr);
3460 cp.reason = HCI_ERROR_REJ_LIMITED_RESOURCES;
3461 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ,
3463 hci_dev_unlock(hdev);
3468 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3471 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
3474 bt_dev_err(hdev, "no memory for new connection");
3479 memcpy(conn->dev_class, ev->dev_class, 3);
3481 hci_dev_unlock(hdev);
3483 if (ev->link_type == ACL_LINK ||
3484 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3485 struct hci_cp_accept_conn_req cp;
3486 conn->state = BT_CONNECT;
3488 bacpy(&cp.bdaddr, &ev->bdaddr);
3490 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3491 cp.role = 0x00; /* Become central */
3493 cp.role = 0x01; /* Remain peripheral */
3495 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3496 } else if (!(flags & HCI_PROTO_DEFER)) {
3497 struct hci_cp_accept_sync_conn_req cp;
3498 conn->state = BT_CONNECT;
3500 bacpy(&cp.bdaddr, &ev->bdaddr);
3501 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3503 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3504 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3505 cp.max_latency = cpu_to_le16(0xffff);
3506 cp.content_format = cpu_to_le16(hdev->voice_setting);
3507 cp.retrans_effort = 0xff;
3509 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3512 conn->state = BT_CONNECT2;
3513 hci_connect_cfm(conn, 0);
3518 hci_dev_unlock(hdev);
3521 static u8 hci_to_mgmt_reason(u8 err)
3524 case HCI_ERROR_CONNECTION_TIMEOUT:
3525 return MGMT_DEV_DISCONN_TIMEOUT;
3526 case HCI_ERROR_REMOTE_USER_TERM:
3527 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3528 case HCI_ERROR_REMOTE_POWER_OFF:
3529 return MGMT_DEV_DISCONN_REMOTE;
3530 case HCI_ERROR_LOCAL_HOST_TERM:
3531 return MGMT_DEV_DISCONN_LOCAL_HOST;
3533 return MGMT_DEV_DISCONN_UNKNOWN;
3537 static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3538 struct sk_buff *skb)
3540 struct hci_ev_disconn_complete *ev = data;
3542 struct hci_conn_params *params;
3543 struct hci_conn *conn;
3544 bool mgmt_connected;
3546 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3550 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3555 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3556 conn->dst_type, ev->status);
3560 conn->state = BT_CLOSED;
3562 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3564 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3565 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3567 reason = hci_to_mgmt_reason(ev->reason);
3569 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3570 reason, mgmt_connected);
3572 if (conn->type == ACL_LINK) {
3573 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3574 hci_remove_link_key(hdev, &conn->dst);
3576 hci_update_scan(hdev);
3579 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3581 switch (params->auto_connect) {
3582 case HCI_AUTO_CONN_LINK_LOSS:
3583 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3587 case HCI_AUTO_CONN_DIRECT:
3588 case HCI_AUTO_CONN_ALWAYS:
3589 list_del_init(¶ms->action);
3590 list_add(¶ms->action, &hdev->pend_le_conns);
3591 hci_update_passive_scan(hdev);
3599 hci_disconn_cfm(conn, ev->reason);
3601 /* Re-enable advertising if necessary, since it might
3602 * have been disabled by the connection. From the
3603 * HCI_LE_Set_Advertise_Enable command description in
3604 * the core specification (v4.0):
3605 * "The Controller shall continue advertising until the Host
3606 * issues an LE_Set_Advertise_Enable command with
3607 * Advertising_Enable set to 0x00 (Advertising is disabled)
3608 * or until a connection is created or until the Advertising
3609 * is timed out due to Directed Advertising."
3611 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3612 hdev->cur_adv_instance = conn->adv_instance;
3613 hci_enable_advertising(hdev);
3619 if (type == ACL_LINK && !hci_conn_num(hdev, ACL_LINK)) {
3623 iscan = test_bit(HCI_ISCAN, &hdev->flags);
3624 pscan = test_bit(HCI_PSCAN, &hdev->flags);
3625 if (!iscan && !pscan) {
3626 u8 scan_enable = SCAN_PAGE;
3628 hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE,
3629 sizeof(scan_enable), &scan_enable);
3635 hci_dev_unlock(hdev);
3638 static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3639 struct sk_buff *skb)
3641 struct hci_ev_auth_complete *ev = data;
3642 struct hci_conn *conn;
3644 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3648 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3653 /* PIN or Key Missing patch */
3654 BT_DBG("remote_auth %x, remote_cap %x, auth_type %x, io_capability %x",
3655 conn->remote_auth, conn->remote_cap,
3656 conn->auth_type, conn->io_capability);
3658 if (ev->status == 0x06 && hci_conn_ssp_enabled(conn)) {
3659 struct hci_cp_auth_requested cp;
3661 BT_DBG("Pin or key missing");
3662 hci_remove_link_key(hdev, &conn->dst);
3663 cp.handle = cpu_to_le16(conn->handle);
3664 hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
3671 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3673 if (!hci_conn_ssp_enabled(conn) &&
3674 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
3675 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
3677 set_bit(HCI_CONN_AUTH, &conn->flags);
3678 conn->sec_level = conn->pending_sec_level;
3681 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3682 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3684 mgmt_auth_failed(conn, ev->status);
3687 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3688 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
3690 if (conn->state == BT_CONFIG) {
3691 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3692 struct hci_cp_set_conn_encrypt cp;
3693 cp.handle = ev->handle;
3695 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3698 conn->state = BT_CONNECTED;
3699 hci_connect_cfm(conn, ev->status);
3700 hci_conn_drop(conn);
3703 hci_auth_cfm(conn, ev->status);
3705 hci_conn_hold(conn);
3706 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3707 hci_conn_drop(conn);
3710 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3712 struct hci_cp_set_conn_encrypt cp;
3713 cp.handle = ev->handle;
3715 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3718 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3719 hci_encrypt_cfm(conn, ev->status);
3724 hci_dev_unlock(hdev);
3727 static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3728 struct sk_buff *skb)
3730 struct hci_ev_remote_name *ev = data;
3731 struct hci_conn *conn;
3733 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3735 hci_conn_check_pending(hdev);
3739 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3741 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3744 if (ev->status == 0)
3745 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3746 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3748 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3754 if (!hci_outgoing_auth_needed(hdev, conn))
3757 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3758 struct hci_cp_auth_requested cp;
3760 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3762 cp.handle = __cpu_to_le16(conn->handle);
3763 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3767 hci_dev_unlock(hdev);
3770 static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3771 struct sk_buff *skb)
3773 struct hci_ev_encrypt_change *ev = data;
3774 struct hci_conn *conn;
3776 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3780 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3786 /* Encryption implies authentication */
3787 set_bit(HCI_CONN_AUTH, &conn->flags);
3788 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3789 conn->sec_level = conn->pending_sec_level;
3791 /* P-256 authentication key implies FIPS */
3792 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3793 set_bit(HCI_CONN_FIPS, &conn->flags);
3795 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3796 conn->type == LE_LINK)
3797 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3799 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3800 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3804 /* We should disregard the current RPA and generate a new one
3805 * whenever the encryption procedure fails.
3807 if (ev->status && conn->type == LE_LINK) {
3808 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3809 hci_adv_instances_set_rpa_expired(hdev, true);
3812 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3814 /* Check link security requirements are met */
3815 if (!hci_conn_check_link_mode(conn))
3816 ev->status = HCI_ERROR_AUTH_FAILURE;
3818 if (ev->status && conn->state == BT_CONNECTED) {
3819 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3820 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3822 /* Notify upper layers so they can cleanup before
3825 hci_encrypt_cfm(conn, ev->status);
3826 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3827 hci_conn_drop(conn);
3831 /* Try reading the encryption key size for encrypted ACL links */
3832 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3833 struct hci_cp_read_enc_key_size cp;
3835 /* Only send HCI_Read_Encryption_Key_Size if the
3836 * controller really supports it. If it doesn't, assume
3837 * the default size (16).
3839 if (!(hdev->commands[20] & 0x10)) {
3840 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3844 cp.handle = cpu_to_le16(conn->handle);
3845 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3847 bt_dev_err(hdev, "sending read key size failed");
3848 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3855 /* Set the default Authenticated Payload Timeout after
3856 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3857 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3858 * sent when the link is active and Encryption is enabled, the conn
3859 * type can be either LE or ACL and controller must support LMP Ping.
3860 * Ensure for AES-CCM encryption as well.
3862 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3863 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3864 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3865 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3866 struct hci_cp_write_auth_payload_to cp;
3868 cp.handle = cpu_to_le16(conn->handle);
3869 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3870 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3875 hci_encrypt_cfm(conn, ev->status);
3878 hci_dev_unlock(hdev);
3881 static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3882 struct sk_buff *skb)
3884 struct hci_ev_change_link_key_complete *ev = data;
3885 struct hci_conn *conn;
3887 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3891 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3894 set_bit(HCI_CONN_SECURE, &conn->flags);
3896 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3898 hci_key_change_cfm(conn, ev->status);
3901 hci_dev_unlock(hdev);
3904 static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3905 struct sk_buff *skb)
3907 struct hci_ev_remote_features *ev = data;
3908 struct hci_conn *conn;
3910 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3914 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3919 memcpy(conn->features[0], ev->features, 8);
3921 if (conn->state != BT_CONFIG)
3924 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3925 lmp_ext_feat_capable(conn)) {
3926 struct hci_cp_read_remote_ext_features cp;
3927 cp.handle = ev->handle;
3929 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3934 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3935 struct hci_cp_remote_name_req cp;
3936 memset(&cp, 0, sizeof(cp));
3937 bacpy(&cp.bdaddr, &conn->dst);
3938 cp.pscan_rep_mode = 0x02;
3939 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3940 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3941 mgmt_device_connected(hdev, conn, NULL, 0);
3943 if (!hci_outgoing_auth_needed(hdev, conn)) {
3944 conn->state = BT_CONNECTED;
3945 hci_connect_cfm(conn, ev->status);
3946 hci_conn_drop(conn);
3950 hci_dev_unlock(hdev);
3953 static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3955 cancel_delayed_work(&hdev->cmd_timer);
3958 if (!test_bit(HCI_RESET, &hdev->flags)) {
3960 cancel_delayed_work(&hdev->ncmd_timer);
3961 atomic_set(&hdev->cmd_cnt, 1);
3963 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3964 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3971 static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3972 struct sk_buff *skb)
3974 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3976 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3981 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3982 hdev->le_pkts = rp->acl_max_pkt;
3983 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3984 hdev->iso_pkts = rp->iso_max_pkt;
3986 hdev->le_cnt = hdev->le_pkts;
3987 hdev->iso_cnt = hdev->iso_pkts;
3989 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3990 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3995 static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3996 struct sk_buff *skb)
3998 struct hci_rp_le_set_cig_params *rp = data;
3999 struct hci_conn *conn;
4002 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4007 while ((conn = hci_conn_hash_lookup_cig(hdev, rp->cig_id))) {
4008 conn->state = BT_CLOSED;
4009 hci_connect_cfm(conn, rp->status);
4017 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
4018 if (conn->type != ISO_LINK || conn->iso_qos.cig != rp->cig_id ||
4019 conn->state == BT_CONNECTED)
4022 conn->handle = __le16_to_cpu(rp->handle[i++]);
4024 bt_dev_dbg(hdev, "%p handle 0x%4.4x link %p", conn,
4025 conn->handle, conn->link);
4027 /* Create CIS if LE is already connected */
4028 if (conn->link && conn->link->state == BT_CONNECTED) {
4030 hci_le_create_cis(conn->link);
4034 if (i == rp->num_handles)
4041 hci_dev_unlock(hdev);
4046 static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
4047 struct sk_buff *skb)
4049 struct hci_rp_le_setup_iso_path *rp = data;
4050 struct hci_cp_le_setup_iso_path *cp;
4051 struct hci_conn *conn;
4053 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4055 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
4061 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
4066 hci_connect_cfm(conn, rp->status);
4071 switch (cp->direction) {
4072 /* Input (Host to Controller) */
4074 /* Only confirm connection if output only */
4075 if (conn->iso_qos.out.sdu && !conn->iso_qos.in.sdu)
4076 hci_connect_cfm(conn, rp->status);
4078 /* Output (Controller to Host) */
4080 /* Confirm connection since conn->iso_qos is always configured
4083 hci_connect_cfm(conn, rp->status);
4088 hci_dev_unlock(hdev);
4092 static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
4094 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4097 static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
4098 struct sk_buff *skb)
4100 struct hci_ev_status *rp = data;
4101 struct hci_cp_le_set_per_adv_params *cp;
4103 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4108 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
4112 /* TODO: set the conn state */
4116 static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
4117 struct sk_buff *skb)
4119 struct hci_ev_status *rp = data;
4122 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
4127 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
4134 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
4136 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
4138 hci_dev_unlock(hdev);
4143 #define HCI_CC_VL(_op, _func, _min, _max) \
4151 #define HCI_CC(_op, _func, _len) \
4152 HCI_CC_VL(_op, _func, _len, _len)
4154 #define HCI_CC_STATUS(_op, _func) \
4155 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4157 static const struct hci_cc {
4159 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4162 } hci_cc_table[] = {
4163 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4164 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4165 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4166 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4167 hci_cc_remote_name_req_cancel),
4168 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4169 sizeof(struct hci_rp_role_discovery)),
4170 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4171 sizeof(struct hci_rp_read_link_policy)),
4172 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4173 sizeof(struct hci_rp_write_link_policy)),
4174 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4175 sizeof(struct hci_rp_read_def_link_policy)),
4176 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4177 hci_cc_write_def_link_policy),
4178 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4179 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4180 sizeof(struct hci_rp_read_stored_link_key)),
4181 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4182 sizeof(struct hci_rp_delete_stored_link_key)),
4183 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4184 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4185 sizeof(struct hci_rp_read_local_name)),
4186 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4187 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4188 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4189 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4190 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4191 sizeof(struct hci_rp_read_class_of_dev)),
4192 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4193 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4194 sizeof(struct hci_rp_read_voice_setting)),
4195 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4196 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4197 sizeof(struct hci_rp_read_num_supported_iac)),
4198 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4199 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4200 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4201 sizeof(struct hci_rp_read_auth_payload_to)),
4202 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4203 sizeof(struct hci_rp_write_auth_payload_to)),
4204 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4205 sizeof(struct hci_rp_read_local_version)),
4206 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4207 sizeof(struct hci_rp_read_local_commands)),
4208 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4209 sizeof(struct hci_rp_read_local_features)),
4210 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4211 sizeof(struct hci_rp_read_local_ext_features)),
4212 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4213 sizeof(struct hci_rp_read_buffer_size)),
4214 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4215 sizeof(struct hci_rp_read_bd_addr)),
4216 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4217 sizeof(struct hci_rp_read_local_pairing_opts)),
4218 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4219 sizeof(struct hci_rp_read_page_scan_activity)),
4220 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4221 hci_cc_write_page_scan_activity),
4222 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4223 sizeof(struct hci_rp_read_page_scan_type)),
4224 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4225 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4226 sizeof(struct hci_rp_read_data_block_size)),
4227 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4228 sizeof(struct hci_rp_read_flow_control_mode)),
4229 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4230 sizeof(struct hci_rp_read_local_amp_info)),
4231 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4232 sizeof(struct hci_rp_read_clock)),
4233 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4234 sizeof(struct hci_rp_read_enc_key_size)),
4235 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4236 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4237 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4238 hci_cc_read_def_err_data_reporting,
4239 sizeof(struct hci_rp_read_def_err_data_reporting)),
4240 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4241 hci_cc_write_def_err_data_reporting),
4242 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4243 sizeof(struct hci_rp_pin_code_reply)),
4244 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4245 sizeof(struct hci_rp_pin_code_neg_reply)),
4246 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4247 sizeof(struct hci_rp_read_local_oob_data)),
4248 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4249 sizeof(struct hci_rp_read_local_oob_ext_data)),
4250 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4251 sizeof(struct hci_rp_le_read_buffer_size)),
4252 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4253 sizeof(struct hci_rp_le_read_local_features)),
4254 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4255 sizeof(struct hci_rp_le_read_adv_tx_power)),
4256 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4257 sizeof(struct hci_rp_user_confirm_reply)),
4258 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4259 sizeof(struct hci_rp_user_confirm_reply)),
4260 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4261 sizeof(struct hci_rp_user_confirm_reply)),
4262 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4263 sizeof(struct hci_rp_user_confirm_reply)),
4264 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4265 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4266 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4267 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4268 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4269 hci_cc_le_read_accept_list_size,
4270 sizeof(struct hci_rp_le_read_accept_list_size)),
4271 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4272 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4273 hci_cc_le_add_to_accept_list),
4274 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4275 hci_cc_le_del_from_accept_list),
4276 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4277 sizeof(struct hci_rp_le_read_supported_states)),
4278 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4279 sizeof(struct hci_rp_le_read_def_data_len)),
4280 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4281 hci_cc_le_write_def_data_len),
4282 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4283 hci_cc_le_add_to_resolv_list),
4284 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4285 hci_cc_le_del_from_resolv_list),
4286 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4287 hci_cc_le_clear_resolv_list),
4288 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4289 sizeof(struct hci_rp_le_read_resolv_list_size)),
4290 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4291 hci_cc_le_set_addr_resolution_enable),
4292 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4293 sizeof(struct hci_rp_le_read_max_data_len)),
4294 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4295 hci_cc_write_le_host_supported),
4296 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4297 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4298 sizeof(struct hci_rp_read_rssi)),
4299 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4300 sizeof(struct hci_rp_read_tx_power)),
4301 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4302 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4303 hci_cc_le_set_ext_scan_param),
4304 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4305 hci_cc_le_set_ext_scan_enable),
4306 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4307 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4308 hci_cc_le_read_num_adv_sets,
4309 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4310 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4311 sizeof(struct hci_rp_le_set_ext_adv_params)),
4312 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4313 hci_cc_le_set_ext_adv_enable),
4314 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4315 hci_cc_le_set_adv_set_random_addr),
4316 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4317 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4318 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4319 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4320 hci_cc_le_set_per_adv_enable),
4321 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4322 sizeof(struct hci_rp_le_read_transmit_power)),
4324 HCI_CC(HCI_OP_ENABLE_RSSI, hci_cc_enable_rssi,
4325 sizeof(struct hci_cc_rsp_enable_rssi)),
4326 HCI_CC(HCI_OP_GET_RAW_RSSI, hci_cc_get_raw_rssi,
4327 sizeof(struct hci_cc_rp_get_raw_rssi)),
4329 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4330 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4331 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4332 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4333 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4334 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4335 sizeof(struct hci_rp_le_setup_iso_path)),
4338 static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4339 struct sk_buff *skb)
4343 if (skb->len < cc->min_len) {
4344 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4345 cc->op, skb->len, cc->min_len);
4346 return HCI_ERROR_UNSPECIFIED;
4349 /* Just warn if the length is over max_len size it still be possible to
4350 * partially parse the cc so leave to callback to decide if that is
4353 if (skb->len > cc->max_len)
4354 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4355 cc->op, skb->len, cc->max_len);
4357 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4359 return HCI_ERROR_UNSPECIFIED;
4361 return cc->func(hdev, data, skb);
4364 static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4365 struct sk_buff *skb, u16 *opcode, u8 *status,
4366 hci_req_complete_t *req_complete,
4367 hci_req_complete_skb_t *req_complete_skb)
4369 struct hci_ev_cmd_complete *ev = data;
4372 *opcode = __le16_to_cpu(ev->opcode);
4374 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4376 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4377 if (hci_cc_table[i].op == *opcode) {
4378 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4383 if (i == ARRAY_SIZE(hci_cc_table)) {
4384 /* Unknown opcode, assume byte 0 contains the status, so
4385 * that e.g. __hci_cmd_sync() properly returns errors
4386 * for vendor specific commands send by HCI drivers.
4387 * If a vendor doesn't actually follow this convention we may
4388 * need to introduce a vendor CC table in order to properly set
4391 *status = skb->data[0];
4394 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4396 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4399 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4401 "unexpected event for opcode 0x%4.4x", *opcode);
4405 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4406 queue_work(hdev->workqueue, &hdev->cmd_work);
4409 static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4411 struct hci_cp_le_create_cis *cp;
4414 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4419 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4425 /* Remove connection if command failed */
4426 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4427 struct hci_conn *conn;
4430 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4432 conn = hci_conn_hash_lookup_handle(hdev, handle);
4434 conn->state = BT_CLOSED;
4435 hci_connect_cfm(conn, status);
4440 hci_dev_unlock(hdev);
4443 #define HCI_CS(_op, _func) \
4449 static const struct hci_cs {
4451 void (*func)(struct hci_dev *hdev, __u8 status);
4452 } hci_cs_table[] = {
4453 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4454 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4455 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4456 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4457 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4458 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4459 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4460 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4461 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4462 hci_cs_read_remote_ext_features),
4463 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4464 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4465 hci_cs_enhanced_setup_sync_conn),
4466 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4467 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4468 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4469 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4470 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4471 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4472 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4473 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4474 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4477 static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4478 struct sk_buff *skb, u16 *opcode, u8 *status,
4479 hci_req_complete_t *req_complete,
4480 hci_req_complete_skb_t *req_complete_skb)
4482 struct hci_ev_cmd_status *ev = data;
4485 *opcode = __le16_to_cpu(ev->opcode);
4486 *status = ev->status;
4488 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4490 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4491 if (hci_cs_table[i].op == *opcode) {
4492 hci_cs_table[i].func(hdev, ev->status);
4497 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4499 /* Indicate request completion if the command failed. Also, if
4500 * we're not waiting for a special event and we get a success
4501 * command status we should try to flag the request as completed
4502 * (since for this kind of commands there will not be a command
4505 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4506 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4508 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4509 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4515 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4516 queue_work(hdev->workqueue, &hdev->cmd_work);
4519 static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4520 struct sk_buff *skb)
4522 struct hci_ev_hardware_error *ev = data;
4524 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4528 mgmt_hardware_error(hdev, ev->code);
4529 hci_dev_unlock(hdev);
4531 hdev->hw_error_code = ev->code;
4533 queue_work(hdev->req_workqueue, &hdev->error_reset);
4536 static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4537 struct sk_buff *skb)
4539 struct hci_ev_role_change *ev = data;
4540 struct hci_conn *conn;
4542 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4546 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4549 conn->role = ev->role;
4551 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4553 hci_role_switch_cfm(conn, ev->status, ev->role);
4555 if (!ev->status && (get_link_mode(conn) & HCI_LM_MASTER))
4556 hci_conn_change_supervision_timeout(conn,
4557 LINK_SUPERVISION_TIMEOUT);
4561 hci_dev_unlock(hdev);
4564 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4565 struct sk_buff *skb)
4567 struct hci_ev_num_comp_pkts *ev = data;
4570 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4571 flex_array_size(ev, handles, ev->num)))
4574 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4575 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4579 bt_dev_dbg(hdev, "num %d", ev->num);
4581 for (i = 0; i < ev->num; i++) {
4582 struct hci_comp_pkts_info *info = &ev->handles[i];
4583 struct hci_conn *conn;
4584 __u16 handle, count;
4586 handle = __le16_to_cpu(info->handle);
4587 count = __le16_to_cpu(info->count);
4589 conn = hci_conn_hash_lookup_handle(hdev, handle);
4593 conn->sent -= count;
4595 switch (conn->type) {
4597 hdev->acl_cnt += count;
4598 if (hdev->acl_cnt > hdev->acl_pkts)
4599 hdev->acl_cnt = hdev->acl_pkts;
4603 if (hdev->le_pkts) {
4604 hdev->le_cnt += count;
4605 if (hdev->le_cnt > hdev->le_pkts)
4606 hdev->le_cnt = hdev->le_pkts;
4608 hdev->acl_cnt += count;
4609 if (hdev->acl_cnt > hdev->acl_pkts)
4610 hdev->acl_cnt = hdev->acl_pkts;
4615 hdev->sco_cnt += count;
4616 if (hdev->sco_cnt > hdev->sco_pkts)
4617 hdev->sco_cnt = hdev->sco_pkts;
4621 if (hdev->iso_pkts) {
4622 hdev->iso_cnt += count;
4623 if (hdev->iso_cnt > hdev->iso_pkts)
4624 hdev->iso_cnt = hdev->iso_pkts;
4625 } else if (hdev->le_pkts) {
4626 hdev->le_cnt += count;
4627 if (hdev->le_cnt > hdev->le_pkts)
4628 hdev->le_cnt = hdev->le_pkts;
4630 hdev->acl_cnt += count;
4631 if (hdev->acl_cnt > hdev->acl_pkts)
4632 hdev->acl_cnt = hdev->acl_pkts;
4637 bt_dev_err(hdev, "unknown type %d conn %p",
4643 queue_work(hdev->workqueue, &hdev->tx_work);
4646 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4649 struct hci_chan *chan;
4651 switch (hdev->dev_type) {
4653 return hci_conn_hash_lookup_handle(hdev, handle);
4655 chan = hci_chan_lookup_handle(hdev, handle);
4660 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4667 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4668 struct sk_buff *skb)
4670 struct hci_ev_num_comp_blocks *ev = data;
4673 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4674 flex_array_size(ev, handles, ev->num_hndl)))
4677 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4678 bt_dev_err(hdev, "wrong event for mode %d",
4679 hdev->flow_ctl_mode);
4683 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4686 for (i = 0; i < ev->num_hndl; i++) {
4687 struct hci_comp_blocks_info *info = &ev->handles[i];
4688 struct hci_conn *conn = NULL;
4689 __u16 handle, block_count;
4691 handle = __le16_to_cpu(info->handle);
4692 block_count = __le16_to_cpu(info->blocks);
4694 conn = __hci_conn_lookup_handle(hdev, handle);
4698 conn->sent -= block_count;
4700 switch (conn->type) {
4703 hdev->block_cnt += block_count;
4704 if (hdev->block_cnt > hdev->num_blocks)
4705 hdev->block_cnt = hdev->num_blocks;
4709 bt_dev_err(hdev, "unknown type %d conn %p",
4715 queue_work(hdev->workqueue, &hdev->tx_work);
4718 static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4719 struct sk_buff *skb)
4721 struct hci_ev_mode_change *ev = data;
4722 struct hci_conn *conn;
4724 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4728 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4730 conn->mode = ev->mode;
4732 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4734 if (conn->mode == HCI_CM_ACTIVE)
4735 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4737 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4740 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4741 hci_sco_setup(conn, ev->status);
4744 hci_dev_unlock(hdev);
4747 static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4748 struct sk_buff *skb)
4750 struct hci_ev_pin_code_req *ev = data;
4751 struct hci_conn *conn;
4753 bt_dev_dbg(hdev, "");
4757 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4761 if (conn->state == BT_CONNECTED) {
4762 hci_conn_hold(conn);
4763 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4764 hci_conn_drop(conn);
4767 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4768 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4769 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4770 sizeof(ev->bdaddr), &ev->bdaddr);
4771 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4774 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4779 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4783 hci_dev_unlock(hdev);
4786 static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4788 if (key_type == HCI_LK_CHANGED_COMBINATION)
4791 conn->pin_length = pin_len;
4792 conn->key_type = key_type;
4795 case HCI_LK_LOCAL_UNIT:
4796 case HCI_LK_REMOTE_UNIT:
4797 case HCI_LK_DEBUG_COMBINATION:
4799 case HCI_LK_COMBINATION:
4801 conn->pending_sec_level = BT_SECURITY_HIGH;
4803 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4805 case HCI_LK_UNAUTH_COMBINATION_P192:
4806 case HCI_LK_UNAUTH_COMBINATION_P256:
4807 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4809 case HCI_LK_AUTH_COMBINATION_P192:
4810 conn->pending_sec_level = BT_SECURITY_HIGH;
4812 case HCI_LK_AUTH_COMBINATION_P256:
4813 conn->pending_sec_level = BT_SECURITY_FIPS;
4818 static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4819 struct sk_buff *skb)
4821 struct hci_ev_link_key_req *ev = data;
4822 struct hci_cp_link_key_reply cp;
4823 struct hci_conn *conn;
4824 struct link_key *key;
4826 bt_dev_dbg(hdev, "");
4828 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4833 key = hci_find_link_key(hdev, &ev->bdaddr);
4835 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4839 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4841 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4843 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4845 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4846 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4847 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4848 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4852 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4853 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4854 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4855 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4859 conn_set_key(conn, key->type, key->pin_len);
4862 bacpy(&cp.bdaddr, &ev->bdaddr);
4863 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4865 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4867 hci_dev_unlock(hdev);
4872 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4873 hci_dev_unlock(hdev);
4876 static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4877 struct sk_buff *skb)
4879 struct hci_ev_link_key_notify *ev = data;
4880 struct hci_conn *conn;
4881 struct link_key *key;
4885 bt_dev_dbg(hdev, "");
4889 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4893 hci_conn_hold(conn);
4894 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4895 hci_conn_drop(conn);
4897 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4898 conn_set_key(conn, ev->key_type, conn->pin_length);
4900 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4903 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4904 ev->key_type, pin_len, &persistent);
4908 /* Update connection information since adding the key will have
4909 * fixed up the type in the case of changed combination keys.
4911 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4912 conn_set_key(conn, key->type, key->pin_len);
4914 mgmt_new_link_key(hdev, key, persistent);
4916 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4917 * is set. If it's not set simply remove the key from the kernel
4918 * list (we've still notified user space about it but with
4919 * store_hint being 0).
4921 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4922 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4923 list_del_rcu(&key->list);
4924 kfree_rcu(key, rcu);
4929 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4931 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4934 hci_dev_unlock(hdev);
4937 static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4938 struct sk_buff *skb)
4940 struct hci_ev_clock_offset *ev = data;
4941 struct hci_conn *conn;
4943 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4947 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4948 if (conn && !ev->status) {
4949 struct inquiry_entry *ie;
4951 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4953 ie->data.clock_offset = ev->clock_offset;
4954 ie->timestamp = jiffies;
4958 hci_dev_unlock(hdev);
4961 static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4962 struct sk_buff *skb)
4964 struct hci_ev_pkt_type_change *ev = data;
4965 struct hci_conn *conn;
4967 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4971 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4972 if (conn && !ev->status)
4973 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4975 hci_dev_unlock(hdev);
4978 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4979 struct sk_buff *skb)
4981 struct hci_ev_pscan_rep_mode *ev = data;
4982 struct inquiry_entry *ie;
4984 bt_dev_dbg(hdev, "");
4988 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4990 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4991 ie->timestamp = jiffies;
4994 hci_dev_unlock(hdev);
4997 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4998 struct sk_buff *skb)
5000 struct hci_ev_inquiry_result_rssi *ev = edata;
5001 struct inquiry_data data;
5004 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
5009 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5014 if (skb->len == array_size(ev->num,
5015 sizeof(struct inquiry_info_rssi_pscan))) {
5016 struct inquiry_info_rssi_pscan *info;
5018 for (i = 0; i < ev->num; i++) {
5021 info = hci_ev_skb_pull(hdev, skb,
5022 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
5025 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
5026 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
5030 bacpy(&data.bdaddr, &info->bdaddr);
5031 data.pscan_rep_mode = info->pscan_rep_mode;
5032 data.pscan_period_mode = info->pscan_period_mode;
5033 data.pscan_mode = info->pscan_mode;
5034 memcpy(data.dev_class, info->dev_class, 3);
5035 data.clock_offset = info->clock_offset;
5036 data.rssi = info->rssi;
5037 data.ssp_mode = 0x00;
5039 flags = hci_inquiry_cache_update(hdev, &data, false);
5041 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5042 info->dev_class, info->rssi,
5043 flags, NULL, 0, NULL, 0, 0);
5045 } else if (skb->len == array_size(ev->num,
5046 sizeof(struct inquiry_info_rssi))) {
5047 struct inquiry_info_rssi *info;
5049 for (i = 0; i < ev->num; i++) {
5052 info = hci_ev_skb_pull(hdev, skb,
5053 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
5056 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
5057 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
5061 bacpy(&data.bdaddr, &info->bdaddr);
5062 data.pscan_rep_mode = info->pscan_rep_mode;
5063 data.pscan_period_mode = info->pscan_period_mode;
5064 data.pscan_mode = 0x00;
5065 memcpy(data.dev_class, info->dev_class, 3);
5066 data.clock_offset = info->clock_offset;
5067 data.rssi = info->rssi;
5068 data.ssp_mode = 0x00;
5070 flags = hci_inquiry_cache_update(hdev, &data, false);
5072 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5073 info->dev_class, info->rssi,
5074 flags, NULL, 0, NULL, 0, 0);
5077 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
5078 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
5081 hci_dev_unlock(hdev);
5084 static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
5085 struct sk_buff *skb)
5087 struct hci_ev_remote_ext_features *ev = data;
5088 struct hci_conn *conn;
5090 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5094 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5098 if (ev->page < HCI_MAX_PAGES)
5099 memcpy(conn->features[ev->page], ev->features, 8);
5101 if (!ev->status && ev->page == 0x01) {
5102 struct inquiry_entry *ie;
5104 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
5106 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5108 if (ev->features[0] & LMP_HOST_SSP) {
5109 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
5111 /* It is mandatory by the Bluetooth specification that
5112 * Extended Inquiry Results are only used when Secure
5113 * Simple Pairing is enabled, but some devices violate
5116 * To make these devices work, the internal SSP
5117 * enabled flag needs to be cleared if the remote host
5118 * features do not indicate SSP support */
5119 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
5122 if (ev->features[0] & LMP_HOST_SC)
5123 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
5126 if (conn->state != BT_CONFIG)
5129 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
5130 struct hci_cp_remote_name_req cp;
5131 memset(&cp, 0, sizeof(cp));
5132 bacpy(&cp.bdaddr, &conn->dst);
5133 cp.pscan_rep_mode = 0x02;
5134 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
5135 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5136 mgmt_device_connected(hdev, conn, NULL, 0);
5138 if (!hci_outgoing_auth_needed(hdev, conn)) {
5139 conn->state = BT_CONNECTED;
5140 hci_connect_cfm(conn, ev->status);
5141 hci_conn_drop(conn);
5145 hci_dev_unlock(hdev);
5148 static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
5149 struct sk_buff *skb)
5151 struct hci_ev_sync_conn_complete *ev = data;
5152 struct hci_conn *conn;
5153 u8 status = ev->status;
5155 switch (ev->link_type) {
5160 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5161 * for HCI_Synchronous_Connection_Complete is limited to
5162 * either SCO or eSCO
5164 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5168 bt_dev_dbg(hdev, "status 0x%2.2x", status);
5172 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
5174 if (ev->link_type == ESCO_LINK)
5177 /* When the link type in the event indicates SCO connection
5178 * and lookup of the connection object fails, then check
5179 * if an eSCO connection object exists.
5181 * The core limits the synchronous connections to either
5182 * SCO or eSCO. The eSCO connection is preferred and tried
5183 * to be setup first and until successfully established,
5184 * the link type will be hinted as eSCO.
5186 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5191 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5192 * Processing it more than once per connection can corrupt kernel memory.
5194 * As the connection handle is set here for the first time, it indicates
5195 * whether the connection is already set up.
5197 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
5198 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5204 conn->handle = __le16_to_cpu(ev->handle);
5205 if (conn->handle > HCI_CONN_HANDLE_MAX) {
5206 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
5207 conn->handle, HCI_CONN_HANDLE_MAX);
5208 status = HCI_ERROR_INVALID_PARAMETERS;
5209 conn->state = BT_CLOSED;
5213 conn->state = BT_CONNECTED;
5214 conn->type = ev->link_type;
5216 hci_debugfs_create_conn(conn);
5217 hci_conn_add_sysfs(conn);
5220 case 0x10: /* Connection Accept Timeout */
5221 case 0x0d: /* Connection Rejected due to Limited Resources */
5222 case 0x11: /* Unsupported Feature or Parameter Value */
5223 case 0x1c: /* SCO interval rejected */
5224 case 0x1a: /* Unsupported Remote Feature */
5225 case 0x1e: /* Invalid LMP Parameters */
5226 case 0x1f: /* Unspecified error */
5227 case 0x20: /* Unsupported LMP Parameter value */
5229 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5230 (hdev->esco_type & EDR_ESCO_MASK);
5231 if (hci_setup_sync(conn, conn->link->handle))
5237 conn->state = BT_CLOSED;
5241 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5242 /* Notify only in case of SCO over HCI transport data path which
5243 * is zero and non-zero value shall be non-HCI transport data path
5245 if (conn->codec.data_path == 0 && hdev->notify) {
5246 switch (ev->air_mode) {
5248 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5251 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5256 hci_connect_cfm(conn, status);
5261 hci_dev_unlock(hdev);
5264 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5268 while (parsed < eir_len) {
5269 u8 field_len = eir[0];
5274 parsed += field_len + 1;
5275 eir += field_len + 1;
5281 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5282 struct sk_buff *skb)
5284 struct hci_ev_ext_inquiry_result *ev = edata;
5285 struct inquiry_data data;
5289 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5290 flex_array_size(ev, info, ev->num)))
5293 bt_dev_dbg(hdev, "num %d", ev->num);
5298 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5303 for (i = 0; i < ev->num; i++) {
5304 struct extended_inquiry_info *info = &ev->info[i];
5308 bacpy(&data.bdaddr, &info->bdaddr);
5309 data.pscan_rep_mode = info->pscan_rep_mode;
5310 data.pscan_period_mode = info->pscan_period_mode;
5311 data.pscan_mode = 0x00;
5312 memcpy(data.dev_class, info->dev_class, 3);
5313 data.clock_offset = info->clock_offset;
5314 data.rssi = info->rssi;
5315 data.ssp_mode = 0x01;
5317 if (hci_dev_test_flag(hdev, HCI_MGMT))
5318 name_known = eir_get_data(info->data,
5320 EIR_NAME_COMPLETE, NULL);
5324 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5326 eir_len = eir_get_length(info->data, sizeof(info->data));
5328 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5329 info->dev_class, info->rssi,
5330 flags, info->data, eir_len, NULL, 0, 0);
5333 hci_dev_unlock(hdev);
5336 static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5337 struct sk_buff *skb)
5339 struct hci_ev_key_refresh_complete *ev = data;
5340 struct hci_conn *conn;
5342 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5343 __le16_to_cpu(ev->handle));
5347 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5351 /* For BR/EDR the necessary steps are taken through the
5352 * auth_complete event.
5354 if (conn->type != LE_LINK)
5358 conn->sec_level = conn->pending_sec_level;
5360 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5362 if (ev->status && conn->state == BT_CONNECTED) {
5363 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5364 hci_conn_drop(conn);
5368 if (conn->state == BT_CONFIG) {
5370 conn->state = BT_CONNECTED;
5372 hci_connect_cfm(conn, ev->status);
5373 hci_conn_drop(conn);
5375 hci_auth_cfm(conn, ev->status);
5377 hci_conn_hold(conn);
5378 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5379 hci_conn_drop(conn);
5383 hci_dev_unlock(hdev);
5386 static u8 hci_get_auth_req(struct hci_conn *conn)
5389 if (conn->remote_auth == HCI_AT_GENERAL_BONDING_MITM) {
5390 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5391 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5392 return HCI_AT_GENERAL_BONDING_MITM;
5396 /* If remote requests no-bonding follow that lead */
5397 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5398 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5399 return conn->remote_auth | (conn->auth_type & 0x01);
5401 /* If both remote and local have enough IO capabilities, require
5404 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5405 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5406 return conn->remote_auth | 0x01;
5408 /* No MITM protection possible so ignore remote requirement */
5409 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5412 static u8 bredr_oob_data_present(struct hci_conn *conn)
5414 struct hci_dev *hdev = conn->hdev;
5415 struct oob_data *data;
5417 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5421 if (bredr_sc_enabled(hdev)) {
5422 /* When Secure Connections is enabled, then just
5423 * return the present value stored with the OOB
5424 * data. The stored value contains the right present
5425 * information. However it can only be trusted when
5426 * not in Secure Connection Only mode.
5428 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5429 return data->present;
5431 /* When Secure Connections Only mode is enabled, then
5432 * the P-256 values are required. If they are not
5433 * available, then do not declare that OOB data is
5436 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
5437 !memcmp(data->hash256, ZERO_KEY, 16))
5443 /* When Secure Connections is not enabled or actually
5444 * not supported by the hardware, then check that if
5445 * P-192 data values are present.
5447 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
5448 !memcmp(data->hash192, ZERO_KEY, 16))
5454 static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5455 struct sk_buff *skb)
5457 struct hci_ev_io_capa_request *ev = data;
5458 struct hci_conn *conn;
5460 bt_dev_dbg(hdev, "");
5464 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5468 hci_conn_hold(conn);
5470 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5473 /* Allow pairing if we're pairable, the initiators of the
5474 * pairing or if the remote is not requesting bonding.
5476 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5477 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5478 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5479 struct hci_cp_io_capability_reply cp;
5481 bacpy(&cp.bdaddr, &ev->bdaddr);
5482 /* Change the IO capability from KeyboardDisplay
5483 * to DisplayYesNo as it is not supported by BT spec. */
5484 cp.capability = (conn->io_capability == 0x04) ?
5485 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5487 /* If we are initiators, there is no remote information yet */
5488 if (conn->remote_auth == 0xff) {
5489 /* Request MITM protection if our IO caps allow it
5490 * except for the no-bonding case.
5492 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5493 conn->auth_type != HCI_AT_NO_BONDING)
5494 conn->auth_type |= 0x01;
5496 conn->auth_type = hci_get_auth_req(conn);
5499 /* If we're not bondable, force one of the non-bondable
5500 * authentication requirement values.
5502 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5503 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5505 cp.authentication = conn->auth_type;
5506 cp.oob_data = bredr_oob_data_present(conn);
5508 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5511 struct hci_cp_io_capability_neg_reply cp;
5513 bacpy(&cp.bdaddr, &ev->bdaddr);
5514 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5516 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5521 hci_dev_unlock(hdev);
5524 static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5525 struct sk_buff *skb)
5527 struct hci_ev_io_capa_reply *ev = data;
5528 struct hci_conn *conn;
5530 bt_dev_dbg(hdev, "");
5534 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5538 conn->remote_cap = ev->capability;
5539 conn->remote_auth = ev->authentication;
5542 hci_dev_unlock(hdev);
5545 static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5546 struct sk_buff *skb)
5548 struct hci_ev_user_confirm_req *ev = data;
5549 int loc_mitm, rem_mitm, confirm_hint = 0;
5550 struct hci_conn *conn;
5552 bt_dev_dbg(hdev, "");
5556 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5559 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5563 loc_mitm = (conn->auth_type & 0x01);
5564 rem_mitm = (conn->remote_auth & 0x01);
5566 /* If we require MITM but the remote device can't provide that
5567 * (it has NoInputNoOutput) then reject the confirmation
5568 * request. We check the security level here since it doesn't
5569 * necessarily match conn->auth_type.
5571 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5572 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5573 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5574 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5575 sizeof(ev->bdaddr), &ev->bdaddr);
5579 /* If no side requires MITM protection; auto-accept */
5580 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5581 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5583 /* If we're not the initiators request authorization to
5584 * proceed from user space (mgmt_user_confirm with
5585 * confirm_hint set to 1). The exception is if neither
5586 * side had MITM or if the local IO capability is
5587 * NoInputNoOutput, in which case we do auto-accept
5589 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5590 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5591 (loc_mitm || rem_mitm)) {
5592 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5597 /* If there already exists link key in local host, leave the
5598 * decision to user space since the remote device could be
5599 * legitimate or malicious.
5601 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5602 bt_dev_dbg(hdev, "Local host already has link key");
5607 BT_DBG("Auto-accept of user confirmation with %ums delay",
5608 hdev->auto_accept_delay);
5610 if (hdev->auto_accept_delay > 0) {
5611 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5612 queue_delayed_work(conn->hdev->workqueue,
5613 &conn->auto_accept_work, delay);
5617 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5618 sizeof(ev->bdaddr), &ev->bdaddr);
5623 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5624 le32_to_cpu(ev->passkey), confirm_hint);
5627 hci_dev_unlock(hdev);
5630 static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5631 struct sk_buff *skb)
5633 struct hci_ev_user_passkey_req *ev = data;
5635 bt_dev_dbg(hdev, "");
5637 if (hci_dev_test_flag(hdev, HCI_MGMT))
5638 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5641 static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5642 struct sk_buff *skb)
5644 struct hci_ev_user_passkey_notify *ev = data;
5645 struct hci_conn *conn;
5647 bt_dev_dbg(hdev, "");
5649 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5653 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5654 conn->passkey_entered = 0;
5656 if (hci_dev_test_flag(hdev, HCI_MGMT))
5657 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5658 conn->dst_type, conn->passkey_notify,
5659 conn->passkey_entered);
5662 static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5663 struct sk_buff *skb)
5665 struct hci_ev_keypress_notify *ev = data;
5666 struct hci_conn *conn;
5668 bt_dev_dbg(hdev, "");
5670 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5675 case HCI_KEYPRESS_STARTED:
5676 conn->passkey_entered = 0;
5679 case HCI_KEYPRESS_ENTERED:
5680 conn->passkey_entered++;
5683 case HCI_KEYPRESS_ERASED:
5684 conn->passkey_entered--;
5687 case HCI_KEYPRESS_CLEARED:
5688 conn->passkey_entered = 0;
5691 case HCI_KEYPRESS_COMPLETED:
5695 if (hci_dev_test_flag(hdev, HCI_MGMT))
5696 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5697 conn->dst_type, conn->passkey_notify,
5698 conn->passkey_entered);
5701 static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5702 struct sk_buff *skb)
5704 struct hci_ev_simple_pair_complete *ev = data;
5705 struct hci_conn *conn;
5707 bt_dev_dbg(hdev, "");
5711 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5715 /* Reset the authentication requirement to unknown */
5716 conn->remote_auth = 0xff;
5718 /* To avoid duplicate auth_failed events to user space we check
5719 * the HCI_CONN_AUTH_PEND flag which will be set if we
5720 * initiated the authentication. A traditional auth_complete
5721 * event gets always produced as initiator and is also mapped to
5722 * the mgmt_auth_failed event */
5723 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5724 mgmt_auth_failed(conn, ev->status);
5726 hci_conn_drop(conn);
5729 hci_dev_unlock(hdev);
5732 static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5733 struct sk_buff *skb)
5735 struct hci_ev_remote_host_features *ev = data;
5736 struct inquiry_entry *ie;
5737 struct hci_conn *conn;
5739 bt_dev_dbg(hdev, "");
5743 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5745 memcpy(conn->features[1], ev->features, 8);
5747 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5749 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5751 hci_dev_unlock(hdev);
5754 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5755 struct sk_buff *skb)
5757 struct hci_ev_remote_oob_data_request *ev = edata;
5758 struct oob_data *data;
5760 bt_dev_dbg(hdev, "");
5764 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5767 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5769 struct hci_cp_remote_oob_data_neg_reply cp;
5771 bacpy(&cp.bdaddr, &ev->bdaddr);
5772 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5777 if (bredr_sc_enabled(hdev)) {
5778 struct hci_cp_remote_oob_ext_data_reply cp;
5780 bacpy(&cp.bdaddr, &ev->bdaddr);
5781 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5782 memset(cp.hash192, 0, sizeof(cp.hash192));
5783 memset(cp.rand192, 0, sizeof(cp.rand192));
5785 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5786 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5788 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5789 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5791 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5794 struct hci_cp_remote_oob_data_reply cp;
5796 bacpy(&cp.bdaddr, &ev->bdaddr);
5797 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5798 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5800 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5805 hci_dev_unlock(hdev);
5808 #if IS_ENABLED(CONFIG_BT_HS)
5809 static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5810 struct sk_buff *skb)
5812 struct hci_ev_channel_selected *ev = data;
5813 struct hci_conn *hcon;
5815 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5817 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5821 amp_read_loc_assoc_final_data(hdev, hcon);
5824 static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5825 struct sk_buff *skb)
5827 struct hci_ev_phy_link_complete *ev = data;
5828 struct hci_conn *hcon, *bredr_hcon;
5830 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5835 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5847 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5849 hcon->state = BT_CONNECTED;
5850 bacpy(&hcon->dst, &bredr_hcon->dst);
5852 hci_conn_hold(hcon);
5853 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5854 hci_conn_drop(hcon);
5856 hci_debugfs_create_conn(hcon);
5857 hci_conn_add_sysfs(hcon);
5859 amp_physical_cfm(bredr_hcon, hcon);
5862 hci_dev_unlock(hdev);
5865 static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5866 struct sk_buff *skb)
5868 struct hci_ev_logical_link_complete *ev = data;
5869 struct hci_conn *hcon;
5870 struct hci_chan *hchan;
5871 struct amp_mgr *mgr;
5873 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5874 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5876 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5880 /* Create AMP hchan */
5881 hchan = hci_chan_create(hcon);
5885 hchan->handle = le16_to_cpu(ev->handle);
5888 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5890 mgr = hcon->amp_mgr;
5891 if (mgr && mgr->bredr_chan) {
5892 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5894 l2cap_chan_lock(bredr_chan);
5896 bredr_chan->conn->mtu = hdev->block_mtu;
5897 l2cap_logical_cfm(bredr_chan, hchan, 0);
5898 hci_conn_hold(hcon);
5900 l2cap_chan_unlock(bredr_chan);
5904 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5905 struct sk_buff *skb)
5907 struct hci_ev_disconn_logical_link_complete *ev = data;
5908 struct hci_chan *hchan;
5910 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5911 le16_to_cpu(ev->handle), ev->status);
5918 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5919 if (!hchan || !hchan->amp)
5922 amp_destroy_logical_link(hchan, ev->reason);
5925 hci_dev_unlock(hdev);
5928 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5929 struct sk_buff *skb)
5931 struct hci_ev_disconn_phy_link_complete *ev = data;
5932 struct hci_conn *hcon;
5934 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5941 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5942 if (hcon && hcon->type == AMP_LINK) {
5943 hcon->state = BT_CLOSED;
5944 hci_disconn_cfm(hcon, ev->reason);
5948 hci_dev_unlock(hdev);
5952 static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5953 u8 bdaddr_type, bdaddr_t *local_rpa)
5956 conn->dst_type = bdaddr_type;
5957 conn->resp_addr_type = bdaddr_type;
5958 bacpy(&conn->resp_addr, bdaddr);
5960 /* Check if the controller has set a Local RPA then it must be
5961 * used instead or hdev->rpa.
5963 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5964 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5965 bacpy(&conn->init_addr, local_rpa);
5966 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5967 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5968 bacpy(&conn->init_addr, &conn->hdev->rpa);
5970 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5971 &conn->init_addr_type);
5974 conn->resp_addr_type = conn->hdev->adv_addr_type;
5975 /* Check if the controller has set a Local RPA then it must be
5976 * used instead or hdev->rpa.
5978 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5979 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5980 bacpy(&conn->resp_addr, local_rpa);
5981 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5982 /* In case of ext adv, resp_addr will be updated in
5983 * Adv Terminated event.
5985 if (!ext_adv_capable(conn->hdev))
5986 bacpy(&conn->resp_addr,
5987 &conn->hdev->random_addr);
5989 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5992 conn->init_addr_type = bdaddr_type;
5993 bacpy(&conn->init_addr, bdaddr);
5995 /* For incoming connections, set the default minimum
5996 * and maximum connection interval. They will be used
5997 * to check if the parameters are in range and if not
5998 * trigger the connection update procedure.
6000 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
6001 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
6005 static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
6006 bdaddr_t *bdaddr, u8 bdaddr_type,
6007 bdaddr_t *local_rpa, u8 role, u16 handle,
6008 u16 interval, u16 latency,
6009 u16 supervision_timeout)
6011 struct hci_conn_params *params;
6012 struct hci_conn *conn;
6013 struct smp_irk *irk;
6018 /* All controllers implicitly stop advertising in the event of a
6019 * connection, so ensure that the state bit is cleared.
6021 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6023 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
6025 /* In case of error status and there is no connection pending
6026 * just unlock as there is nothing to cleanup.
6031 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
6033 bt_dev_err(hdev, "no memory for new connection");
6037 conn->dst_type = bdaddr_type;
6039 /* If we didn't have a hci_conn object previously
6040 * but we're in central role this must be something
6041 * initiated using an accept list. Since accept list based
6042 * connections are not "first class citizens" we don't
6043 * have full tracking of them. Therefore, we go ahead
6044 * with a "best effort" approach of determining the
6045 * initiator address based on the HCI_PRIVACY flag.
6048 conn->resp_addr_type = bdaddr_type;
6049 bacpy(&conn->resp_addr, bdaddr);
6050 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
6051 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
6052 bacpy(&conn->init_addr, &hdev->rpa);
6054 hci_copy_identity_address(hdev,
6056 &conn->init_addr_type);
6061 /* LE auto connect */
6062 bacpy(&conn->dst, bdaddr);
6064 cancel_delayed_work(&conn->le_conn_timeout);
6067 /* The HCI_LE_Connection_Complete event is only sent once per connection.
6068 * Processing it more than once per connection can corrupt kernel memory.
6070 * As the connection handle is set here for the first time, it indicates
6071 * whether the connection is already set up.
6073 if (conn->handle != HCI_CONN_HANDLE_UNSET) {
6074 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
6078 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
6080 /* Lookup the identity address from the stored connection
6081 * address and address type.
6083 * When establishing connections to an identity address, the
6084 * connection procedure will store the resolvable random
6085 * address first. Now if it can be converted back into the
6086 * identity address, start using the identity address from
6089 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
6091 bacpy(&conn->dst, &irk->bdaddr);
6092 conn->dst_type = irk->addr_type;
6095 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
6097 if (handle > HCI_CONN_HANDLE_MAX) {
6098 bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
6099 HCI_CONN_HANDLE_MAX);
6100 status = HCI_ERROR_INVALID_PARAMETERS;
6103 /* All connection failure handling is taken care of by the
6104 * hci_conn_failed function which is triggered by the HCI
6105 * request completion callbacks used for connecting.
6110 /* Drop the connection if it has been aborted */
6111 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
6112 hci_conn_drop(conn);
6116 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
6117 addr_type = BDADDR_LE_PUBLIC;
6119 addr_type = BDADDR_LE_RANDOM;
6121 /* Drop the connection if the device is blocked */
6122 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
6123 hci_conn_drop(conn);
6127 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
6128 mgmt_device_connected(hdev, conn, NULL, 0);
6130 conn->sec_level = BT_SECURITY_LOW;
6131 conn->handle = handle;
6132 conn->state = BT_CONFIG;
6134 /* Store current advertising instance as connection advertising instance
6135 * when sotfware rotation is in use so it can be re-enabled when
6138 if (!ext_adv_capable(hdev))
6139 conn->adv_instance = hdev->cur_adv_instance;
6141 conn->le_conn_interval = interval;
6142 conn->le_conn_latency = latency;
6143 conn->le_supv_timeout = supervision_timeout;
6145 hci_debugfs_create_conn(conn);
6146 hci_conn_add_sysfs(conn);
6148 /* The remote features procedure is defined for central
6149 * role only. So only in case of an initiated connection
6150 * request the remote features.
6152 * If the local controller supports peripheral-initiated features
6153 * exchange, then requesting the remote features in peripheral
6154 * role is possible. Otherwise just transition into the
6155 * connected state without requesting the remote features.
6158 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
6159 struct hci_cp_le_read_remote_features cp;
6161 cp.handle = __cpu_to_le16(conn->handle);
6163 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
6166 hci_conn_hold(conn);
6168 conn->state = BT_CONNECTED;
6169 hci_connect_cfm(conn, status);
6172 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6175 list_del_init(¶ms->action);
6177 hci_conn_drop(params->conn);
6178 hci_conn_put(params->conn);
6179 params->conn = NULL;
6184 hci_update_passive_scan(hdev);
6185 hci_dev_unlock(hdev);
6188 static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6189 struct sk_buff *skb)
6191 struct hci_ev_le_conn_complete *ev = data;
6193 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6195 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6196 NULL, ev->role, le16_to_cpu(ev->handle),
6197 le16_to_cpu(ev->interval),
6198 le16_to_cpu(ev->latency),
6199 le16_to_cpu(ev->supervision_timeout));
6202 static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
6203 struct sk_buff *skb)
6205 struct hci_ev_le_enh_conn_complete *ev = data;
6207 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6209 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6210 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6211 le16_to_cpu(ev->interval),
6212 le16_to_cpu(ev->latency),
6213 le16_to_cpu(ev->supervision_timeout));
6216 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6217 struct sk_buff *skb)
6219 struct hci_evt_le_ext_adv_set_term *ev = data;
6220 struct hci_conn *conn;
6221 struct adv_info *adv, *n;
6223 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6225 /* The Bluetooth Core 5.3 specification clearly states that this event
6226 * shall not be sent when the Host disables the advertising set. So in
6227 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6229 * When the Host disables an advertising set, all cleanup is done via
6230 * its command callback and not needed to be duplicated here.
6232 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6233 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6239 adv = hci_find_adv_instance(hdev, ev->handle);
6245 /* Remove advertising as it has been terminated */
6246 hci_remove_adv_instance(hdev, ev->handle);
6247 mgmt_advertising_removed(NULL, hdev, ev->handle);
6249 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6254 /* We are no longer advertising, clear HCI_LE_ADV */
6255 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6260 adv->enabled = false;
6262 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6264 /* Store handle in the connection so the correct advertising
6265 * instance can be re-enabled when disconnected.
6267 conn->adv_instance = ev->handle;
6269 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6270 bacmp(&conn->resp_addr, BDADDR_ANY))
6274 bacpy(&conn->resp_addr, &hdev->random_addr);
6279 bacpy(&conn->resp_addr, &adv->random_addr);
6283 hci_dev_unlock(hdev);
6286 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6287 struct sk_buff *skb)
6289 struct hci_ev_le_conn_update_complete *ev = data;
6290 struct hci_conn *conn;
6292 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6299 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6303 hci_dev_unlock(hdev);
6304 mgmt_le_conn_update_failed(hdev, &conn->dst,
6305 conn->type, conn->dst_type, ev->status);
6309 conn->le_conn_interval = le16_to_cpu(ev->interval);
6310 conn->le_conn_latency = le16_to_cpu(ev->latency);
6311 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6314 hci_dev_unlock(hdev);
6317 mgmt_le_conn_updated(hdev, &conn->dst, conn->type,
6318 conn->dst_type, conn->le_conn_interval,
6319 conn->le_conn_latency, conn->le_supv_timeout);
6323 /* This function requires the caller holds hdev->lock */
6324 static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6326 u8 addr_type, bool addr_resolved,
6329 struct hci_conn *conn;
6330 struct hci_conn_params *params;
6332 /* If the event is not connectable don't proceed further */
6333 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6336 /* Ignore if the device is blocked or hdev is suspended */
6337 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6341 /* Most controller will fail if we try to create new connections
6342 * while we have an existing one in peripheral role.
6344 if (hdev->conn_hash.le_num_peripheral > 0 &&
6345 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6346 !(hdev->le_states[3] & 0x10)))
6349 /* If we're not connectable only connect devices that we have in
6350 * our pend_le_conns list.
6352 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6357 if (!params->explicit_connect) {
6358 switch (params->auto_connect) {
6359 case HCI_AUTO_CONN_DIRECT:
6360 /* Only devices advertising with ADV_DIRECT_IND are
6361 * triggering a connection attempt. This is allowing
6362 * incoming connections from peripheral devices.
6364 if (adv_type != LE_ADV_DIRECT_IND)
6367 case HCI_AUTO_CONN_ALWAYS:
6368 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6369 * are triggering a connection attempt. This means
6370 * that incoming connections from peripheral device are
6371 * accepted and also outgoing connections to peripheral
6372 * devices are established when found.
6380 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6381 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6383 if (!IS_ERR(conn)) {
6384 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6385 * by higher layer that tried to connect, if no then
6386 * store the pointer since we don't really have any
6387 * other owner of the object besides the params that
6388 * triggered it. This way we can abort the connection if
6389 * the parameters get removed and keep the reference
6390 * count consistent once the connection is established.
6393 if (!params->explicit_connect)
6394 params->conn = hci_conn_get(conn);
6399 switch (PTR_ERR(conn)) {
6401 /* If hci_connect() returns -EBUSY it means there is already
6402 * an LE connection attempt going on. Since controllers don't
6403 * support more than one connection attempt at the time, we
6404 * don't consider this an error case.
6408 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6415 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6416 u8 bdaddr_type, bdaddr_t *direct_addr,
6417 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6418 bool ext_adv, bool ctl_time, u64 instant)
6420 struct discovery_state *d = &hdev->discovery;
6421 struct smp_irk *irk;
6422 struct hci_conn *conn;
6423 bool match, bdaddr_resolved;
6429 case LE_ADV_DIRECT_IND:
6430 case LE_ADV_SCAN_IND:
6431 case LE_ADV_NONCONN_IND:
6432 case LE_ADV_SCAN_RSP:
6435 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6436 "type: 0x%02x", type);
6440 if (!ext_adv && len > HCI_MAX_AD_LENGTH) {
6441 bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes");
6445 /* Find the end of the data in case the report contains padded zero
6446 * bytes at the end causing an invalid length value.
6448 * When data is NULL, len is 0 so there is no need for extra ptr
6449 * check as 'ptr < data + 0' is already false in such case.
6451 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6452 if (ptr + 1 + *ptr > data + len)
6456 /* Adjust for actual length. This handles the case when remote
6457 * device is advertising with incorrect data length.
6461 /* If the direct address is present, then this report is from
6462 * a LE Direct Advertising Report event. In that case it is
6463 * important to see if the address is matching the local
6464 * controller address.
6466 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6467 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6470 /* Only resolvable random addresses are valid for these
6471 * kind of reports and others can be ignored.
6473 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6476 /* If the controller is not using resolvable random
6477 * addresses, then this report can be ignored.
6479 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6482 /* If the local IRK of the controller does not match
6483 * with the resolvable random address provided, then
6484 * this report can be ignored.
6486 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6490 /* Check if we need to convert to identity address */
6491 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6493 bdaddr = &irk->bdaddr;
6494 bdaddr_type = irk->addr_type;
6497 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6499 /* Check if we have been requested to connect to this device.
6501 * direct_addr is set only for directed advertising reports (it is NULL
6502 * for advertising reports) and is already verified to be RPA above.
6504 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6506 if (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) {
6507 /* Store report for later inclusion by
6508 * mgmt_device_connected
6510 memcpy(conn->le_adv_data, data, len);
6511 conn->le_adv_data_len = len;
6514 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6515 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6519 /* All scan results should be sent up for Mesh systems */
6520 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6521 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6522 rssi, flags, data, len, NULL, 0, instant);
6526 /* Passive scanning shouldn't trigger any device found events,
6527 * except for devices marked as CONN_REPORT for which we do send
6528 * device found events, or advertisement monitoring requested.
6530 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6531 if (type == LE_ADV_DIRECT_IND)
6535 /* Handle all adv packet in platform */
6536 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6537 bdaddr, bdaddr_type) &&
6538 idr_is_empty(&hdev->adv_monitors_idr))
6543 mgmt_le_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6544 rssi, flags, data, len, NULL, 0, type);
6546 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6547 rssi, flags, data, len, NULL, 0, 0);
6552 /* When receiving a scan response, then there is no way to
6553 * know if the remote device is connectable or not. However
6554 * since scan responses are merged with a previously seen
6555 * advertising report, the flags field from that report
6558 * In the unlikely case that a controller just sends a scan
6559 * response event that doesn't match the pending report, then
6560 * it is marked as a standalone SCAN_RSP.
6562 if (type == LE_ADV_SCAN_RSP)
6563 flags = MGMT_DEV_FOUND_SCAN_RSP;
6566 /* Disable adv ind and scan rsp merging */
6567 mgmt_le_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6568 rssi, flags, data, len, NULL, 0, type);
6570 /* If there's nothing pending either store the data from this
6571 * event or send an immediate device found event if the data
6572 * should not be stored for later.
6574 if (!ext_adv && !has_pending_adv_report(hdev)) {
6575 /* If the report will trigger a SCAN_REQ store it for
6578 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6579 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6580 rssi, flags, data, len);
6584 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6585 rssi, flags, data, len, NULL, 0, 0);
6589 /* Check if the pending report is for the same device as the new one */
6590 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6591 bdaddr_type == d->last_adv_addr_type);
6593 /* If the pending data doesn't match this report or this isn't a
6594 * scan response (e.g. we got a duplicate ADV_IND) then force
6595 * sending of the pending data.
6597 if (type != LE_ADV_SCAN_RSP || !match) {
6598 /* Send out whatever is in the cache, but skip duplicates */
6600 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6601 d->last_adv_addr_type, NULL,
6602 d->last_adv_rssi, d->last_adv_flags,
6604 d->last_adv_data_len, NULL, 0, 0);
6606 /* If the new report will trigger a SCAN_REQ store it for
6609 if (!ext_adv && (type == LE_ADV_IND ||
6610 type == LE_ADV_SCAN_IND)) {
6611 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6612 rssi, flags, data, len);
6616 /* The advertising reports cannot be merged, so clear
6617 * the pending report and send out a device found event.
6619 clear_pending_adv_report(hdev);
6620 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6621 rssi, flags, data, len, NULL, 0, 0);
6625 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6626 * the new event is a SCAN_RSP. We can therefore proceed with
6627 * sending a merged device found event.
6629 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6630 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6631 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6632 clear_pending_adv_report(hdev);
6636 static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6637 struct sk_buff *skb)
6639 struct hci_ev_le_advertising_report *ev = data;
6640 u64 instant = jiffies;
6648 struct hci_ev_le_advertising_info *info;
6651 info = hci_le_ev_skb_pull(hdev, skb,
6652 HCI_EV_LE_ADVERTISING_REPORT,
6657 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6661 if (info->length <= HCI_MAX_AD_LENGTH) {
6662 rssi = info->data[info->length];
6663 process_adv_report(hdev, info->type, &info->bdaddr,
6664 info->bdaddr_type, NULL, 0, rssi,
6665 info->data, info->length, false,
6668 bt_dev_err(hdev, "Dropping invalid advertising data");
6672 hci_dev_unlock(hdev);
6675 static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6677 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6679 case LE_LEGACY_ADV_IND:
6681 case LE_LEGACY_ADV_DIRECT_IND:
6682 return LE_ADV_DIRECT_IND;
6683 case LE_LEGACY_ADV_SCAN_IND:
6684 return LE_ADV_SCAN_IND;
6685 case LE_LEGACY_NONCONN_IND:
6686 return LE_ADV_NONCONN_IND;
6687 case LE_LEGACY_SCAN_RSP_ADV:
6688 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6689 return LE_ADV_SCAN_RSP;
6695 if (evt_type & LE_EXT_ADV_CONN_IND) {
6696 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6697 return LE_ADV_DIRECT_IND;
6702 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6703 return LE_ADV_SCAN_RSP;
6705 if (evt_type & LE_EXT_ADV_SCAN_IND)
6706 return LE_ADV_SCAN_IND;
6708 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6709 evt_type & LE_EXT_ADV_DIRECT_IND)
6710 return LE_ADV_NONCONN_IND;
6713 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6716 return LE_ADV_INVALID;
6719 static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6720 struct sk_buff *skb)
6722 struct hci_ev_le_ext_adv_report *ev = data;
6723 u64 instant = jiffies;
6731 struct hci_ev_le_ext_adv_info *info;
6735 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6740 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6744 evt_type = __le16_to_cpu(info->type);
6745 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6746 if (legacy_evt_type != LE_ADV_INVALID) {
6747 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6748 info->bdaddr_type, NULL, 0,
6749 info->rssi, info->data, info->length,
6750 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6755 hci_dev_unlock(hdev);
6758 static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6760 struct hci_cp_le_pa_term_sync cp;
6762 memset(&cp, 0, sizeof(cp));
6765 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6768 static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6769 struct sk_buff *skb)
6771 struct hci_ev_le_pa_sync_established *ev = data;
6772 int mask = hdev->link_mode;
6775 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6782 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6784 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6785 if (!(mask & HCI_LM_ACCEPT))
6786 hci_le_pa_term_sync(hdev, ev->handle);
6788 hci_dev_unlock(hdev);
6791 static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6792 struct sk_buff *skb)
6794 struct hci_ev_le_remote_feat_complete *ev = data;
6795 struct hci_conn *conn;
6797 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6801 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6804 memcpy(conn->features[0], ev->features, 8);
6806 if (conn->state == BT_CONFIG) {
6809 /* If the local controller supports peripheral-initiated
6810 * features exchange, but the remote controller does
6811 * not, then it is possible that the error code 0x1a
6812 * for unsupported remote feature gets returned.
6814 * In this specific case, allow the connection to
6815 * transition into connected state and mark it as
6818 if (!conn->out && ev->status == 0x1a &&
6819 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6822 status = ev->status;
6824 conn->state = BT_CONNECTED;
6825 hci_connect_cfm(conn, status);
6826 hci_conn_drop(conn);
6830 hci_dev_unlock(hdev);
6833 static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6834 struct sk_buff *skb)
6836 struct hci_ev_le_ltk_req *ev = data;
6837 struct hci_cp_le_ltk_reply cp;
6838 struct hci_cp_le_ltk_neg_reply neg;
6839 struct hci_conn *conn;
6840 struct smp_ltk *ltk;
6842 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6846 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6850 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6854 if (smp_ltk_is_sc(ltk)) {
6855 /* With SC both EDiv and Rand are set to zero */
6856 if (ev->ediv || ev->rand)
6859 /* For non-SC keys check that EDiv and Rand match */
6860 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6864 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6865 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6866 cp.handle = cpu_to_le16(conn->handle);
6868 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6870 conn->enc_key_size = ltk->enc_size;
6872 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6874 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6875 * temporary key used to encrypt a connection following
6876 * pairing. It is used during the Encrypted Session Setup to
6877 * distribute the keys. Later, security can be re-established
6878 * using a distributed LTK.
6880 if (ltk->type == SMP_STK) {
6881 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6882 list_del_rcu(<k->list);
6883 kfree_rcu(ltk, rcu);
6885 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6888 hci_dev_unlock(hdev);
6893 neg.handle = ev->handle;
6894 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6895 hci_dev_unlock(hdev);
6898 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6901 struct hci_cp_le_conn_param_req_neg_reply cp;
6903 cp.handle = cpu_to_le16(handle);
6906 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6910 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6911 struct sk_buff *skb)
6913 struct hci_ev_le_remote_conn_param_req *ev = data;
6914 struct hci_cp_le_conn_param_req_reply cp;
6915 struct hci_conn *hcon;
6916 u16 handle, min, max, latency, timeout;
6918 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6920 handle = le16_to_cpu(ev->handle);
6921 min = le16_to_cpu(ev->interval_min);
6922 max = le16_to_cpu(ev->interval_max);
6923 latency = le16_to_cpu(ev->latency);
6924 timeout = le16_to_cpu(ev->timeout);
6926 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6927 if (!hcon || hcon->state != BT_CONNECTED)
6928 return send_conn_param_neg_reply(hdev, handle,
6929 HCI_ERROR_UNKNOWN_CONN_ID);
6931 if (hci_check_conn_params(min, max, latency, timeout))
6932 return send_conn_param_neg_reply(hdev, handle,
6933 HCI_ERROR_INVALID_LL_PARAMS);
6935 if (hcon->role == HCI_ROLE_MASTER) {
6936 struct hci_conn_params *params;
6941 params = hci_conn_params_lookup(hdev, &hcon->dst,
6944 params->conn_min_interval = min;
6945 params->conn_max_interval = max;
6946 params->conn_latency = latency;
6947 params->supervision_timeout = timeout;
6953 hci_dev_unlock(hdev);
6955 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6956 store_hint, min, max, latency, timeout);
6959 cp.handle = ev->handle;
6960 cp.interval_min = ev->interval_min;
6961 cp.interval_max = ev->interval_max;
6962 cp.latency = ev->latency;
6963 cp.timeout = ev->timeout;
6967 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6970 static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6971 struct sk_buff *skb)
6973 struct hci_ev_le_direct_adv_report *ev = data;
6974 u64 instant = jiffies;
6977 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6978 flex_array_size(ev, info, ev->num)))
6986 for (i = 0; i < ev->num; i++) {
6987 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6989 process_adv_report(hdev, info->type, &info->bdaddr,
6990 info->bdaddr_type, &info->direct_addr,
6991 info->direct_addr_type, info->rssi, NULL, 0,
6992 false, false, instant);
6995 hci_dev_unlock(hdev);
6998 static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6999 struct sk_buff *skb)
7001 struct hci_ev_le_phy_update_complete *ev = data;
7002 struct hci_conn *conn;
7004 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7011 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
7015 conn->le_tx_phy = ev->tx_phy;
7016 conn->le_rx_phy = ev->rx_phy;
7019 hci_dev_unlock(hdev);
7022 static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
7023 struct sk_buff *skb)
7025 struct hci_evt_le_cis_established *ev = data;
7026 struct hci_conn *conn;
7027 u16 handle = __le16_to_cpu(ev->handle);
7029 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7033 conn = hci_conn_hash_lookup_handle(hdev, handle);
7036 "Unable to find connection with handle 0x%4.4x",
7041 if (conn->type != ISO_LINK) {
7043 "Invalid connection link type handle 0x%4.4x",
7048 if (conn->role == HCI_ROLE_SLAVE) {
7051 memset(&interval, 0, sizeof(interval));
7053 memcpy(&interval, ev->c_latency, sizeof(ev->c_latency));
7054 conn->iso_qos.in.interval = le32_to_cpu(interval);
7055 memcpy(&interval, ev->p_latency, sizeof(ev->p_latency));
7056 conn->iso_qos.out.interval = le32_to_cpu(interval);
7057 conn->iso_qos.in.latency = le16_to_cpu(ev->interval);
7058 conn->iso_qos.out.latency = le16_to_cpu(ev->interval);
7059 conn->iso_qos.in.sdu = le16_to_cpu(ev->c_mtu);
7060 conn->iso_qos.out.sdu = le16_to_cpu(ev->p_mtu);
7061 conn->iso_qos.in.phy = ev->c_phy;
7062 conn->iso_qos.out.phy = ev->p_phy;
7066 conn->state = BT_CONNECTED;
7067 hci_debugfs_create_conn(conn);
7068 hci_conn_add_sysfs(conn);
7069 hci_iso_setup_path(conn);
7073 hci_connect_cfm(conn, ev->status);
7077 hci_dev_unlock(hdev);
7080 static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
7082 struct hci_cp_le_reject_cis cp;
7084 memset(&cp, 0, sizeof(cp));
7086 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
7087 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
7090 static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
7092 struct hci_cp_le_accept_cis cp;
7094 memset(&cp, 0, sizeof(cp));
7096 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
7099 static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
7100 struct sk_buff *skb)
7102 struct hci_evt_le_cis_req *ev = data;
7103 u16 acl_handle, cis_handle;
7104 struct hci_conn *acl, *cis;
7108 acl_handle = __le16_to_cpu(ev->acl_handle);
7109 cis_handle = __le16_to_cpu(ev->cis_handle);
7111 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
7112 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
7116 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
7120 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
7121 if (!(mask & HCI_LM_ACCEPT)) {
7122 hci_le_reject_cis(hdev, ev->cis_handle);
7126 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
7128 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE);
7130 hci_le_reject_cis(hdev, ev->cis_handle);
7133 cis->handle = cis_handle;
7136 cis->iso_qos.cig = ev->cig_id;
7137 cis->iso_qos.cis = ev->cis_id;
7139 if (!(flags & HCI_PROTO_DEFER)) {
7140 hci_le_accept_cis(hdev, ev->cis_handle);
7142 cis->state = BT_CONNECT2;
7143 hci_connect_cfm(cis, 0);
7147 hci_dev_unlock(hdev);
7150 static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
7151 struct sk_buff *skb)
7153 struct hci_evt_le_create_big_complete *ev = data;
7154 struct hci_conn *conn;
7156 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
7158 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
7159 flex_array_size(ev, bis_handle, ev->num_bis)))
7164 conn = hci_conn_hash_lookup_big(hdev, ev->handle);
7168 if (conn->type != ISO_LINK) {
7170 "Invalid connection link type handle 0x%2.2x",
7176 conn->handle = __le16_to_cpu(ev->bis_handle[0]);
7179 conn->state = BT_CONNECTED;
7180 hci_debugfs_create_conn(conn);
7181 hci_conn_add_sysfs(conn);
7182 hci_iso_setup_path(conn);
7186 hci_connect_cfm(conn, ev->status);
7190 hci_dev_unlock(hdev);
7193 static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
7194 struct sk_buff *skb)
7196 struct hci_evt_le_big_sync_estabilished *ev = data;
7197 struct hci_conn *bis;
7200 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7202 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7203 flex_array_size(ev, bis, ev->num_bis)))
7211 for (i = 0; i < ev->num_bis; i++) {
7212 u16 handle = le16_to_cpu(ev->bis[i]);
7215 bis = hci_conn_hash_lookup_handle(hdev, handle);
7217 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7221 bis->handle = handle;
7224 bis->iso_qos.big = ev->handle;
7225 memset(&interval, 0, sizeof(interval));
7226 memcpy(&interval, ev->latency, sizeof(ev->latency));
7227 bis->iso_qos.in.interval = le32_to_cpu(interval);
7228 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7229 bis->iso_qos.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7230 bis->iso_qos.in.sdu = le16_to_cpu(ev->max_pdu);
7232 hci_iso_setup_path(bis);
7235 hci_dev_unlock(hdev);
7238 static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7239 struct sk_buff *skb)
7241 struct hci_evt_le_big_info_adv_report *ev = data;
7242 int mask = hdev->link_mode;
7245 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7249 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7250 if (!(mask & HCI_LM_ACCEPT))
7251 hci_le_pa_term_sync(hdev, ev->sync_handle);
7253 hci_dev_unlock(hdev);
7256 #define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7259 .min_len = _min_len, \
7260 .max_len = _max_len, \
7263 #define HCI_LE_EV(_op, _func, _len) \
7264 HCI_LE_EV_VL(_op, _func, _len, _len)
7266 #define HCI_LE_EV_STATUS(_op, _func) \
7267 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7269 /* Entries in this table shall have their position according to the subevent
7270 * opcode they handle so the use of the macros above is recommend since it does
7271 * attempt to initialize at its proper index using Designated Initializers that
7272 * way events without a callback function can be ommited.
7274 static const struct hci_le_ev {
7275 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7278 } hci_le_ev_table[U8_MAX + 1] = {
7279 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7280 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7281 sizeof(struct hci_ev_le_conn_complete)),
7282 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7283 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7284 sizeof(struct hci_ev_le_advertising_report),
7285 HCI_MAX_EVENT_SIZE),
7286 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7287 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7288 hci_le_conn_update_complete_evt,
7289 sizeof(struct hci_ev_le_conn_update_complete)),
7290 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7291 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7292 hci_le_remote_feat_complete_evt,
7293 sizeof(struct hci_ev_le_remote_feat_complete)),
7294 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7295 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7296 sizeof(struct hci_ev_le_ltk_req)),
7297 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7298 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7299 hci_le_remote_conn_param_req_evt,
7300 sizeof(struct hci_ev_le_remote_conn_param_req)),
7301 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7302 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7303 hci_le_enh_conn_complete_evt,
7304 sizeof(struct hci_ev_le_enh_conn_complete)),
7305 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7306 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7307 sizeof(struct hci_ev_le_direct_adv_report),
7308 HCI_MAX_EVENT_SIZE),
7309 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7310 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7311 sizeof(struct hci_ev_le_phy_update_complete)),
7312 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7313 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7314 sizeof(struct hci_ev_le_ext_adv_report),
7315 HCI_MAX_EVENT_SIZE),
7316 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7317 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7318 hci_le_pa_sync_estabilished_evt,
7319 sizeof(struct hci_ev_le_pa_sync_established)),
7320 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7321 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7322 sizeof(struct hci_evt_le_ext_adv_set_term)),
7323 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7324 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7325 sizeof(struct hci_evt_le_cis_established)),
7326 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7327 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7328 sizeof(struct hci_evt_le_cis_req)),
7329 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7330 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7331 hci_le_create_big_complete_evt,
7332 sizeof(struct hci_evt_le_create_big_complete),
7333 HCI_MAX_EVENT_SIZE),
7334 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7335 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7336 hci_le_big_sync_established_evt,
7337 sizeof(struct hci_evt_le_big_sync_estabilished),
7338 HCI_MAX_EVENT_SIZE),
7339 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7340 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7341 hci_le_big_info_adv_report_evt,
7342 sizeof(struct hci_evt_le_big_info_adv_report),
7343 HCI_MAX_EVENT_SIZE),
7346 static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7347 struct sk_buff *skb, u16 *opcode, u8 *status,
7348 hci_req_complete_t *req_complete,
7349 hci_req_complete_skb_t *req_complete_skb)
7351 struct hci_ev_le_meta *ev = data;
7352 const struct hci_le_ev *subev;
7354 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7356 /* Only match event if command OGF is for LE */
7357 if (hdev->sent_cmd &&
7358 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7359 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7360 *opcode = hci_skb_opcode(hdev->sent_cmd);
7361 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7365 subev = &hci_le_ev_table[ev->subevent];
7369 if (skb->len < subev->min_len) {
7370 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7371 ev->subevent, skb->len, subev->min_len);
7375 /* Just warn if the length is over max_len size it still be
7376 * possible to partially parse the event so leave to callback to
7377 * decide if that is acceptable.
7379 if (skb->len > subev->max_len)
7380 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7381 ev->subevent, skb->len, subev->max_len);
7382 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7386 subev->func(hdev, data, skb);
7389 static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7390 u8 event, struct sk_buff *skb)
7392 struct hci_ev_cmd_complete *ev;
7393 struct hci_event_hdr *hdr;
7398 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7403 if (hdr->evt != event)
7408 /* Check if request ended in Command Status - no way to retrieve
7409 * any extra parameters in this case.
7411 if (hdr->evt == HCI_EV_CMD_STATUS)
7414 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7415 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7420 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7424 if (opcode != __le16_to_cpu(ev->opcode)) {
7425 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7426 __le16_to_cpu(ev->opcode));
7433 static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7434 struct sk_buff *skb)
7436 struct hci_ev_le_advertising_info *adv;
7437 struct hci_ev_le_direct_adv_info *direct_adv;
7438 struct hci_ev_le_ext_adv_info *ext_adv;
7439 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7440 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7444 /* If we are currently suspended and this is the first BT event seen,
7445 * save the wake reason associated with the event.
7447 if (!hdev->suspended || hdev->wake_reason)
7450 /* Default to remote wake. Values for wake_reason are documented in the
7451 * Bluez mgmt api docs.
7453 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7455 /* Once configured for remote wakeup, we should only wake up for
7456 * reconnections. It's useful to see which device is waking us up so
7457 * keep track of the bdaddr of the connection event that woke us up.
7459 if (event == HCI_EV_CONN_REQUEST) {
7460 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7461 hdev->wake_addr_type = BDADDR_BREDR;
7462 } else if (event == HCI_EV_CONN_COMPLETE) {
7463 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7464 hdev->wake_addr_type = BDADDR_BREDR;
7465 } else if (event == HCI_EV_LE_META) {
7466 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7467 u8 subevent = le_ev->subevent;
7468 u8 *ptr = &skb->data[sizeof(*le_ev)];
7469 u8 num_reports = *ptr;
7471 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7472 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7473 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7475 adv = (void *)(ptr + 1);
7476 direct_adv = (void *)(ptr + 1);
7477 ext_adv = (void *)(ptr + 1);
7480 case HCI_EV_LE_ADVERTISING_REPORT:
7481 bacpy(&hdev->wake_addr, &adv->bdaddr);
7482 hdev->wake_addr_type = adv->bdaddr_type;
7484 case HCI_EV_LE_DIRECT_ADV_REPORT:
7485 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7486 hdev->wake_addr_type = direct_adv->bdaddr_type;
7488 case HCI_EV_LE_EXT_ADV_REPORT:
7489 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7490 hdev->wake_addr_type = ext_adv->bdaddr_type;
7495 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7499 hci_dev_unlock(hdev);
7502 #define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7506 .min_len = _min_len, \
7507 .max_len = _max_len, \
7510 #define HCI_EV(_op, _func, _len) \
7511 HCI_EV_VL(_op, _func, _len, _len)
7513 #define HCI_EV_STATUS(_op, _func) \
7514 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7516 #define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7519 .func_req = _func, \
7520 .min_len = _min_len, \
7521 .max_len = _max_len, \
7524 #define HCI_EV_REQ(_op, _func, _len) \
7525 HCI_EV_REQ_VL(_op, _func, _len, _len)
7527 /* Entries in this table shall have their position according to the event opcode
7528 * they handle so the use of the macros above is recommend since it does attempt
7529 * to initialize at its proper index using Designated Initializers that way
7530 * events without a callback function don't have entered.
7532 static const struct hci_ev {
7535 void (*func)(struct hci_dev *hdev, void *data,
7536 struct sk_buff *skb);
7537 void (*func_req)(struct hci_dev *hdev, void *data,
7538 struct sk_buff *skb, u16 *opcode, u8 *status,
7539 hci_req_complete_t *req_complete,
7540 hci_req_complete_skb_t *req_complete_skb);
7544 } hci_ev_table[U8_MAX + 1] = {
7545 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7546 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7547 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7548 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7549 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7550 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7551 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7552 sizeof(struct hci_ev_conn_complete)),
7553 /* [0x04 = HCI_EV_CONN_REQUEST] */
7554 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7555 sizeof(struct hci_ev_conn_request)),
7556 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7557 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7558 sizeof(struct hci_ev_disconn_complete)),
7559 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7560 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7561 sizeof(struct hci_ev_auth_complete)),
7562 /* [0x07 = HCI_EV_REMOTE_NAME] */
7563 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7564 sizeof(struct hci_ev_remote_name)),
7565 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7566 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7567 sizeof(struct hci_ev_encrypt_change)),
7568 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7569 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7570 hci_change_link_key_complete_evt,
7571 sizeof(struct hci_ev_change_link_key_complete)),
7572 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7573 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7574 sizeof(struct hci_ev_remote_features)),
7575 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7576 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7577 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7578 /* [0x0f = HCI_EV_CMD_STATUS] */
7579 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7580 sizeof(struct hci_ev_cmd_status)),
7581 /* [0x10 = HCI_EV_CMD_STATUS] */
7582 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7583 sizeof(struct hci_ev_hardware_error)),
7584 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7585 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7586 sizeof(struct hci_ev_role_change)),
7587 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7588 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7589 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7590 /* [0x14 = HCI_EV_MODE_CHANGE] */
7591 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7592 sizeof(struct hci_ev_mode_change)),
7593 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7594 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7595 sizeof(struct hci_ev_pin_code_req)),
7596 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7597 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7598 sizeof(struct hci_ev_link_key_req)),
7599 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7600 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7601 sizeof(struct hci_ev_link_key_notify)),
7602 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7603 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7604 sizeof(struct hci_ev_clock_offset)),
7605 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7606 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7607 sizeof(struct hci_ev_pkt_type_change)),
7608 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7609 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7610 sizeof(struct hci_ev_pscan_rep_mode)),
7611 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7612 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7613 hci_inquiry_result_with_rssi_evt,
7614 sizeof(struct hci_ev_inquiry_result_rssi),
7615 HCI_MAX_EVENT_SIZE),
7616 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7617 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7618 sizeof(struct hci_ev_remote_ext_features)),
7619 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7620 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7621 sizeof(struct hci_ev_sync_conn_complete)),
7622 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7623 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7624 hci_extended_inquiry_result_evt,
7625 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7626 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7627 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7628 sizeof(struct hci_ev_key_refresh_complete)),
7629 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7630 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7631 sizeof(struct hci_ev_io_capa_request)),
7632 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7633 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7634 sizeof(struct hci_ev_io_capa_reply)),
7635 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7636 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7637 sizeof(struct hci_ev_user_confirm_req)),
7638 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7639 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7640 sizeof(struct hci_ev_user_passkey_req)),
7641 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7642 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7643 sizeof(struct hci_ev_remote_oob_data_request)),
7644 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7645 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7646 sizeof(struct hci_ev_simple_pair_complete)),
7647 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7648 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7649 sizeof(struct hci_ev_user_passkey_notify)),
7650 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7651 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7652 sizeof(struct hci_ev_keypress_notify)),
7653 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7654 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7655 sizeof(struct hci_ev_remote_host_features)),
7656 /* [0x3e = HCI_EV_LE_META] */
7657 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7658 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7659 #if IS_ENABLED(CONFIG_BT_HS)
7660 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7661 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7662 sizeof(struct hci_ev_phy_link_complete)),
7663 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7664 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7665 sizeof(struct hci_ev_channel_selected)),
7666 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7667 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7668 hci_disconn_loglink_complete_evt,
7669 sizeof(struct hci_ev_disconn_logical_link_complete)),
7670 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7671 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7672 sizeof(struct hci_ev_logical_link_complete)),
7673 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7674 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7675 hci_disconn_phylink_complete_evt,
7676 sizeof(struct hci_ev_disconn_phy_link_complete)),
7678 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7679 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7680 sizeof(struct hci_ev_num_comp_blocks)),
7682 /* [0xFF = HCI_EV_VENDOR_SPECIFIC] */
7683 HCI_EV(HCI_EV_VENDOR_SPECIFIC, hci_vendor_specific_evt,
7684 sizeof(struct hci_ev_vendor_specific)),
7686 /* [0xff = HCI_EV_VENDOR] */
7687 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7691 static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7692 u16 *opcode, u8 *status,
7693 hci_req_complete_t *req_complete,
7694 hci_req_complete_skb_t *req_complete_skb)
7696 const struct hci_ev *ev = &hci_ev_table[event];
7702 if (skb->len < ev->min_len) {
7703 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7704 event, skb->len, ev->min_len);
7708 /* Just warn if the length is over max_len size it still be
7709 * possible to partially parse the event so leave to callback to
7710 * decide if that is acceptable.
7712 if (skb->len > ev->max_len)
7713 bt_dev_warn_ratelimited(hdev,
7714 "unexpected event 0x%2.2x length: %u > %u",
7715 event, skb->len, ev->max_len);
7717 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7722 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7725 ev->func(hdev, data, skb);
7728 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7730 struct hci_event_hdr *hdr = (void *) skb->data;
7731 hci_req_complete_t req_complete = NULL;
7732 hci_req_complete_skb_t req_complete_skb = NULL;
7733 struct sk_buff *orig_skb = NULL;
7734 u8 status = 0, event, req_evt = 0;
7735 u16 opcode = HCI_OP_NOP;
7737 if (skb->len < sizeof(*hdr)) {
7738 bt_dev_err(hdev, "Malformed HCI Event");
7742 kfree_skb(hdev->recv_event);
7743 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7747 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7752 /* Only match event if command OGF is not for LE */
7753 if (hdev->sent_cmd &&
7754 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7755 hci_skb_event(hdev->sent_cmd) == event) {
7756 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7757 status, &req_complete, &req_complete_skb);
7761 /* If it looks like we might end up having to call
7762 * req_complete_skb, store a pristine copy of the skb since the
7763 * various handlers may modify the original one through
7764 * skb_pull() calls, etc.
7766 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7767 event == HCI_EV_CMD_COMPLETE)
7768 orig_skb = skb_clone(skb, GFP_KERNEL);
7770 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7772 /* Store wake reason if we're suspended */
7773 hci_store_wake_reason(hdev, event, skb);
7775 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7777 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7781 req_complete(hdev, status, opcode);
7782 } else if (req_complete_skb) {
7783 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7784 kfree_skb(orig_skb);
7787 req_complete_skb(hdev, status, opcode, orig_skb);
7791 kfree_skb(orig_skb);
7793 hdev->stat.evt_rx++;