/net/bluetooth/hci_event.c
C | 6167 lines | 4315 code | 1438 blank | 414 comment | 824 complexity | 20943b43737aa6ea0cb07baf7990615a MD5 | raw file
Possible License(s): AGPL-1.0, GPL-2.0, LGPL-2.0
- /*
- BlueZ - Bluetooth protocol stack for Linux
- Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
- Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License version 2 as
- published by the Free Software Foundation;
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
- SOFTWARE IS DISCLAIMED.
- */
- /* Bluetooth HCI event handling. */
- #include <asm/unaligned.h>
- #include <net/bluetooth/bluetooth.h>
- #include <net/bluetooth/hci_core.h>
- #include <net/bluetooth/mgmt.h>
- #include "hci_request.h"
- #include "hci_debugfs.h"
- #include "a2mp.h"
- #include "amp.h"
- #include "smp.h"
- #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
- "\x00\x00\x00\x00\x00\x00\x00\x00"
- /* Handle HCI Event packets */
- static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- clear_bit(HCI_INQUIRY, &hdev->flags);
- smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
- wake_up_bit(&hdev->flags, HCI_INQUIRY);
- hci_dev_lock(hdev);
- /* Set discovery state to stopped if we're not doing LE active
- * scanning.
- */
- if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
- hdev->le_scan_type != LE_SCAN_ACTIVE)
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- hci_dev_unlock(hdev);
- hci_conn_check_pending(hdev);
- }
- static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
- }
- static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
- hci_conn_check_pending(hdev);
- }
- static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- BT_DBG("%s", hdev->name);
- }
- static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_role_discovery *rp = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->role = rp->role;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_link_policy *rp = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->link_policy = __le16_to_cpu(rp->policy);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_write_link_policy *rp = (void *) skb->data;
- struct hci_conn *conn;
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->link_policy = get_unaligned_le16(sent + 2);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->link_policy = __le16_to_cpu(rp->policy);
- }
- static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
- if (!sent)
- return;
- hdev->link_policy = get_unaligned_le16(sent);
- }
- static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- clear_bit(HCI_RESET, &hdev->flags);
- if (status)
- return;
- /* Reset all non-persistent flags */
- hci_dev_clear_volatile_flags(hdev);
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- hdev->inq_tx_power = HCI_TX_POWER_INVALID;
- hdev->adv_tx_power = HCI_TX_POWER_INVALID;
- memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
- hdev->adv_data_len = 0;
- memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
- hdev->scan_rsp_data_len = 0;
- hdev->le_scan_type = LE_SCAN_PASSIVE;
- hdev->ssp_debug_mode = 0;
- hci_bdaddr_list_clear(&hdev->le_white_list);
- hci_bdaddr_list_clear(&hdev->le_resolv_list);
- }
- static void hci_cc_read_stored_link_key(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_stored_link_key *rp = (void *)skb->data;
- struct hci_cp_read_stored_link_key *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
- if (!sent)
- return;
- if (!rp->status && sent->read_all == 0x01) {
- hdev->stored_max_keys = rp->max_keys;
- hdev->stored_num_keys = rp->num_keys;
- }
- }
- static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_delete_stored_link_key *rp = (void *)skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (rp->num_keys <= hdev->stored_num_keys)
- hdev->stored_num_keys -= rp->num_keys;
- else
- hdev->stored_num_keys = 0;
- }
- static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_set_local_name_complete(hdev, sent, status);
- else if (!status)
- memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_local_name *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (hci_dev_test_flag(hdev, HCI_SETUP) ||
- hci_dev_test_flag(hdev, HCI_CONFIG))
- memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
- }
- static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (!status) {
- __u8 param = *((__u8 *) sent);
- if (param == AUTH_ENABLED)
- set_bit(HCI_AUTH, &hdev->flags);
- else
- clear_bit(HCI_AUTH, &hdev->flags);
- }
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_auth_enable_complete(hdev, status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- __u8 param;
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
- if (!sent)
- return;
- param = *((__u8 *) sent);
- if (param)
- set_bit(HCI_ENCRYPT, &hdev->flags);
- else
- clear_bit(HCI_ENCRYPT, &hdev->flags);
- }
- static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- __u8 param;
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
- if (!sent)
- return;
- param = *((__u8 *) sent);
- hci_dev_lock(hdev);
- if (status) {
- hdev->discov_timeout = 0;
- goto done;
- }
- if (param & SCAN_INQUIRY)
- set_bit(HCI_ISCAN, &hdev->flags);
- else
- clear_bit(HCI_ISCAN, &hdev->flags);
- if (param & SCAN_PAGE)
- set_bit(HCI_PSCAN, &hdev->flags);
- else
- clear_bit(HCI_PSCAN, &hdev->flags);
- done:
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- memcpy(hdev->dev_class, rp->dev_class, 3);
- BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
- hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
- }
- static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (status == 0)
- memcpy(hdev->dev_class, sent, 3);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_set_class_of_dev_complete(hdev, sent, status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_voice_setting *rp = (void *) skb->data;
- __u16 setting;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- setting = __le16_to_cpu(rp->voice_setting);
- if (hdev->voice_setting == setting)
- return;
- hdev->voice_setting = setting;
- BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
- if (hdev->notify)
- hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
- }
- static void hci_cc_write_voice_setting(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- __u16 setting;
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
- if (!sent)
- return;
- setting = get_unaligned_le16(sent);
- if (hdev->voice_setting == setting)
- return;
- hdev->voice_setting = setting;
- BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
- if (hdev->notify)
- hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
- }
- static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->num_iac = rp->num_iac;
- BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
- }
- static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- struct hci_cp_write_ssp_mode *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (!status) {
- if (sent->mode)
- hdev->features[1][0] |= LMP_HOST_SSP;
- else
- hdev->features[1][0] &= ~LMP_HOST_SSP;
- }
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_ssp_enable_complete(hdev, sent->mode, status);
- else if (!status) {
- if (sent->mode)
- hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
- else
- hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
- {
- u8 status = *((u8 *) skb->data);
- struct hci_cp_write_sc_support *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (!status) {
- if (sent->support)
- hdev->features[1][0] |= LMP_HOST_SC;
- else
- hdev->features[1][0] &= ~LMP_HOST_SC;
- }
- if (!hci_dev_test_flag(hdev, HCI_MGMT) && !status) {
- if (sent->support)
- hci_dev_set_flag(hdev, HCI_SC_ENABLED);
- else
- hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_local_version *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (hci_dev_test_flag(hdev, HCI_SETUP) ||
- hci_dev_test_flag(hdev, HCI_CONFIG)) {
- hdev->hci_ver = rp->hci_ver;
- hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
- hdev->lmp_ver = rp->lmp_ver;
- hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
- hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
- }
- }
- static void hci_cc_read_local_commands(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_commands *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (hci_dev_test_flag(hdev, HCI_SETUP) ||
- hci_dev_test_flag(hdev, HCI_CONFIG))
- memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
- }
- static void hci_cc_read_auth_payload_timeout(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_auth_payload_to *rp = (void *)skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_write_auth_payload_timeout(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_write_auth_payload_to *rp = (void *)skb->data;
- struct hci_conn *conn;
- void *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_local_features(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_features *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- memcpy(hdev->features, rp->features, 8);
- /* Adjust default settings according to features
- * supported by device. */
- if (hdev->features[0][0] & LMP_3SLOT)
- hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
- if (hdev->features[0][0] & LMP_5SLOT)
- hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
- if (hdev->features[0][1] & LMP_HV2) {
- hdev->pkt_type |= (HCI_HV2);
- hdev->esco_type |= (ESCO_HV2);
- }
- if (hdev->features[0][1] & LMP_HV3) {
- hdev->pkt_type |= (HCI_HV3);
- hdev->esco_type |= (ESCO_HV3);
- }
- if (lmp_esco_capable(hdev))
- hdev->esco_type |= (ESCO_EV3);
- if (hdev->features[0][4] & LMP_EV4)
- hdev->esco_type |= (ESCO_EV4);
- if (hdev->features[0][4] & LMP_EV5)
- hdev->esco_type |= (ESCO_EV5);
- if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
- hdev->esco_type |= (ESCO_2EV3);
- if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
- hdev->esco_type |= (ESCO_3EV3);
- if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
- hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
- }
- static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (hdev->max_page < rp->max_page)
- hdev->max_page = rp->max_page;
- if (rp->page < HCI_MAX_PAGES)
- memcpy(hdev->features[rp->page], rp->features, 8);
- }
- static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->flow_ctl_mode = rp->mode;
- }
- static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_buffer_size *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
- hdev->sco_mtu = rp->sco_mtu;
- hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
- hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
- if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
- hdev->sco_mtu = 64;
- hdev->sco_pkts = 8;
- }
- hdev->acl_cnt = hdev->acl_pkts;
- hdev->sco_cnt = hdev->sco_pkts;
- BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
- hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
- }
- static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_bd_addr *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (test_bit(HCI_INIT, &hdev->flags))
- bacpy(&hdev->bdaddr, &rp->bdaddr);
- if (hci_dev_test_flag(hdev, HCI_SETUP))
- bacpy(&hdev->setup_addr, &rp->bdaddr);
- }
- static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (test_bit(HCI_INIT, &hdev->flags)) {
- hdev->page_scan_interval = __le16_to_cpu(rp->interval);
- hdev->page_scan_window = __le16_to_cpu(rp->window);
- }
- }
- static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- u8 status = *((u8 *) skb->data);
- struct hci_cp_write_page_scan_activity *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
- if (!sent)
- return;
- hdev->page_scan_interval = __le16_to_cpu(sent->interval);
- hdev->page_scan_window = __le16_to_cpu(sent->window);
- }
- static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- if (test_bit(HCI_INIT, &hdev->flags))
- hdev->page_scan_type = rp->type;
- }
- static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- u8 status = *((u8 *) skb->data);
- u8 *type;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
- if (type)
- hdev->page_scan_type = *type;
- }
- static void hci_cc_read_data_block_size(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_data_block_size *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
- hdev->block_len = __le16_to_cpu(rp->block_len);
- hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
- hdev->block_cnt = hdev->num_blocks;
- BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
- hdev->block_cnt, hdev->block_len);
- }
- static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_clock *rp = (void *) skb->data;
- struct hci_cp_read_clock *cp;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- if (skb->len < sizeof(*rp))
- return;
- if (rp->status)
- return;
- hci_dev_lock(hdev);
- cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
- if (!cp)
- goto unlock;
- if (cp->which == 0x00) {
- hdev->clock = le32_to_cpu(rp->clock);
- goto unlock;
- }
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn) {
- conn->clock = le32_to_cpu(rp->clock);
- conn->clock_accuracy = le16_to_cpu(rp->accuracy);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->amp_status = rp->amp_status;
- hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
- hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
- hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
- hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
- hdev->amp_type = rp->amp_type;
- hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
- hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
- hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
- hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
- }
- static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->inq_tx_power = rp->tx_power;
- }
- static void hci_cc_read_def_err_data_reporting(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_def_err_data_reporting *rp = (void *)skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->err_data_reporting = rp->err_data_reporting;
- }
- static void hci_cc_write_def_err_data_reporting(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *)skb->data);
- struct hci_cp_write_def_err_data_reporting *cp;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
- if (!cp)
- return;
- hdev->err_data_reporting = cp->err_data_reporting;
- }
- static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_pin_code_reply *rp = (void *) skb->data;
- struct hci_cp_pin_code_reply *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
- if (rp->status)
- goto unlock;
- cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
- if (!cp)
- goto unlock;
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
- if (conn)
- conn->pin_length = cp->pin_len;
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
- rp->status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
- hdev->le_pkts = rp->le_max_pkt;
- hdev->le_cnt = hdev->le_pkts;
- BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
- }
- static void hci_cc_le_read_local_features(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_local_features *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- memcpy(hdev->le_features, rp->features, 8);
- }
- static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->adv_tx_power = rp->tx_power;
- }
- static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
- rp->status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
- ACL_LINK, 0, rp->status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
- 0, rp->status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- hci_dev_lock(hdev);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
- ACL_LINK, 0, rp->status);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- }
- static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- }
- static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- bdaddr_t *sent;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- bacpy(&hdev->random_addr, sent);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_default_phy(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- struct hci_cp_le_set_default_phy *cp;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- hdev->le_tx_def_phys = cp->tx_phys;
- hdev->le_rx_def_phys = cp->rx_phys;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- struct hci_cp_le_set_adv_set_rand_addr *cp;
- struct adv_info *adv_instance;
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- if (!hdev->cur_adv_instance) {
- /* Store in hdev for instance 0 (Set adv and Directed advs) */
- bacpy(&hdev->random_addr, &cp->bdaddr);
- } else {
- adv_instance = hci_find_adv_instance(hdev,
- hdev->cur_adv_instance);
- if (adv_instance)
- bacpy(&adv_instance->random_addr, &cp->bdaddr);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 *sent, status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- /* If we're doing connection initiation as peripheral. Set a
- * timeout in case something goes wrong.
- */
- if (*sent) {
- struct hci_conn *conn;
- hci_dev_set_flag(hdev, HCI_LE_ADV);
- conn = hci_lookup_le_connect(hdev);
- if (conn)
- queue_delayed_work(hdev->workqueue,
- &conn->le_conn_timeout,
- conn->conn_timeout);
- } else {
- hci_dev_clear_flag(hdev, HCI_LE_ADV);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_set_ext_adv_enable *cp;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- if (cp->enable) {
- struct hci_conn *conn;
- hci_dev_set_flag(hdev, HCI_LE_ADV);
- conn = hci_lookup_le_connect(hdev);
- if (conn)
- queue_delayed_work(hdev->workqueue,
- &conn->le_conn_timeout,
- conn->conn_timeout);
- } else {
- hci_dev_clear_flag(hdev, HCI_LE_ADV);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_cp_le_set_scan_param *cp;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- hdev->le_scan_type = cp->type;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_ext_scan_param(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_set_ext_scan_params *cp;
- __u8 status = *((__u8 *) skb->data);
- struct hci_cp_le_scan_phy_params *phy_param;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
- if (!cp)
- return;
- phy_param = (void *)cp->data;
- hci_dev_lock(hdev);
- hdev->le_scan_type = phy_param->type;
- hci_dev_unlock(hdev);
- }
- static bool has_pending_adv_report(struct hci_dev *hdev)
- {
- struct discovery_state *d = &hdev->discovery;
- return bacmp(&d->last_adv_addr, BDADDR_ANY);
- }
- static void clear_pending_adv_report(struct hci_dev *hdev)
- {
- struct discovery_state *d = &hdev->discovery;
- bacpy(&d->last_adv_addr, BDADDR_ANY);
- d->last_adv_data_len = 0;
- }
- static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 bdaddr_type, s8 rssi, u32 flags,
- u8 *data, u8 len)
- {
- struct discovery_state *d = &hdev->discovery;
- bacpy(&d->last_adv_addr, bdaddr);
- d->last_adv_addr_type = bdaddr_type;
- d->last_adv_rssi = rssi;
- d->last_adv_flags = flags;
- memcpy(d->last_adv_data, data, len);
- d->last_adv_data_len = len;
- }
- static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
- {
- hci_dev_lock(hdev);
- switch (enable) {
- case LE_SCAN_ENABLE:
- hci_dev_set_flag(hdev, HCI_LE_SCAN);
- if (hdev->le_scan_type == LE_SCAN_ACTIVE)
- clear_pending_adv_report(hdev);
- break;
- case LE_SCAN_DISABLE:
- /* We do this here instead of when setting DISCOVERY_STOPPED
- * since the latter would potentially require waiting for
- * inquiry to stop too.
- */
- if (has_pending_adv_report(hdev)) {
- struct discovery_state *d = &hdev->discovery;
- mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
- d->last_adv_addr_type, NULL,
- d->last_adv_rssi, d->last_adv_flags,
- d->last_adv_data,
- d->last_adv_data_len, NULL, 0);
- }
- /* Cancel this timer so that we don't try to disable scanning
- * when it's already disabled.
- */
- cancel_delayed_work(&hdev->le_scan_disable);
- hci_dev_clear_flag(hdev, HCI_LE_SCAN);
- /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
- * interrupted scanning due to a connect request. Mark
- * therefore discovery as stopped. If this was not
- * because of a connect request advertising might have
- * been disabled because of active scanning, so
- * re-enable it again if necessary.
- */
- if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
- hdev->discovery.state == DISCOVERY_FINDING)
- hci_req_reenable_advertising(hdev);
- break;
- default:
- bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
- enable);
- break;
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_set_scan_enable *cp;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
- if (!cp)
- return;
- le_set_scan_enable_complete(hdev, cp->enable);
- }
- static void hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_set_ext_scan_enable *cp;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
- if (!cp)
- return;
- le_set_scan_enable_complete(hdev, cp->enable);
- }
- static void hci_cc_le_read_num_adv_sets(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_num_supported_adv_sets *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x No of Adv sets %u", hdev->name, rp->status,
- rp->num_of_sets);
- if (rp->status)
- return;
- hdev->le_num_of_adv_sets = rp->num_of_sets;
- }
- static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
- if (rp->status)
- return;
- hdev->le_white_list_size = rp->size;
- }
- static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- hci_bdaddr_list_clear(&hdev->le_white_list);
- }
- static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_add_to_white_list *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
- if (!sent)
- return;
- hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
- sent->bdaddr_type);
- }
- static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_del_from_white_list *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
- if (!sent)
- return;
- hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
- sent->bdaddr_type);
- }
- static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- memcpy(hdev->le_states, rp->le_states, 8);
- }
- static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
- hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
- }
- static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_write_def_data_len *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
- if (!sent)
- return;
- hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
- hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
- }
- static void hci_cc_le_add_to_resolv_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_add_to_resolv_list *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
- if (!sent)
- return;
- hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
- sent->bdaddr_type, sent->peer_irk,
- sent->local_irk);
- }
- static void hci_cc_le_del_from_resolv_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_le_del_from_resolv_list *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
- if (!sent)
- return;
- hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
- sent->bdaddr_type);
- }
- static void hci_cc_le_clear_resolv_list(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- hci_bdaddr_list_clear(&hdev->le_resolv_list);
- }
- static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_resolv_list_size *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
- if (rp->status)
- return;
- hdev->le_resolv_list_size = rp->size;
- }
- static void hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- __u8 *sent, status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (*sent)
- hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
- else
- hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
- hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
- hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
- hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
- }
- static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_cp_write_le_host_supported *sent;
- __u8 status = *((__u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- if (sent->le) {
- hdev->features[1][0] |= LMP_HOST_LE;
- hci_dev_set_flag(hdev, HCI_LE_ENABLED);
- } else {
- hdev->features[1][0] &= ~LMP_HOST_LE;
- hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
- hci_dev_clear_flag(hdev, HCI_ADVERTISING);
- }
- if (sent->simul)
- hdev->features[1][0] |= LMP_HOST_LE_BREDR;
- else
- hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_cp_le_set_adv_param *cp;
- u8 status = *((u8 *) skb->data);
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- hdev->adv_addr_type = cp->own_address_type;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_set_ext_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_le_set_ext_adv_params *rp = (void *) skb->data;
- struct hci_cp_le_set_ext_adv_params *cp;
- struct adv_info *adv_instance;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- hdev->adv_addr_type = cp->own_addr_type;
- if (!hdev->cur_adv_instance) {
- /* Store in hdev for instance 0 */
- hdev->adv_tx_power = rp->tx_power;
- } else {
- adv_instance = hci_find_adv_instance(hdev,
- hdev->cur_adv_instance);
- if (adv_instance)
- adv_instance->tx_power = rp->tx_power;
- }
- /* Update adv data as tx power is known now */
- hci_req_update_adv_data(hdev, hdev->cur_adv_instance);
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_rp_read_rssi *rp = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (conn)
- conn->rssi = rp->rssi;
- hci_dev_unlock(hdev);
- }
- static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_cp_read_tx_power *sent;
- struct hci_rp_read_tx_power *rp = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
- if (rp->status)
- return;
- sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
- if (!sent)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
- if (!conn)
- goto unlock;
- switch (sent->type) {
- case 0x00:
- conn->tx_power = rp->tx_power;
- break;
- case 0x01:
- conn->max_tx_power = rp->tx_power;
- break;
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
- {
- u8 status = *((u8 *) skb->data);
- u8 *mode;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status)
- return;
- mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
- if (mode)
- hdev->ssp_debug_mode = *mode;
- }
- static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
- {
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (status) {
- hci_conn_check_pending(hdev);
- return;
- }
- set_bit(HCI_INQUIRY, &hdev->flags);
- }
- static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_create_conn *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
- BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
- if (status) {
- if (conn && conn->state == BT_CONNECT) {
- if (status != 0x0c || conn->attempt > 2) {
- conn->state = BT_CLOSED;
- hci_connect_cfm(conn, status);
- hci_conn_del(conn);
- } else
- conn->state = BT_CONNECT2;
- }
- } else {
- if (!conn) {
- conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
- HCI_ROLE_MASTER);
- if (!conn)
- bt_dev_err(hdev, "no memory for new connection");
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_add_sco *cp;
- struct hci_conn *acl, *sco;
- __u16 handle;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
- if (!cp)
- return;
- handle = __le16_to_cpu(cp->handle);
- BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
- hci_dev_lock(hdev);
- acl = hci_conn_hash_lookup_handle(hdev, handle);
- if (acl) {
- sco = acl->link;
- if (sco) {
- sco->state = BT_CLOSED;
- hci_connect_cfm(sco, status);
- hci_conn_del(sco);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_auth_requested *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- if (conn->state == BT_CONFIG) {
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_set_conn_encrypt *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- if (conn->state == BT_CONFIG) {
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static int hci_outgoing_auth_needed(struct hci_dev *hdev,
- struct hci_conn *conn)
- {
- if (conn->state != BT_CONFIG || !conn->out)
- return 0;
- if (conn->pending_sec_level == BT_SECURITY_SDP)
- return 0;
- /* Only request authentication for SSP connections or non-SSP
- * devices with sec_level MEDIUM or HIGH or if MITM protection
- * is requested.
- */
- if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
- conn->pending_sec_level != BT_SECURITY_FIPS &&
- conn->pending_sec_level != BT_SECURITY_HIGH &&
- conn->pending_sec_level != BT_SECURITY_MEDIUM)
- return 0;
- return 1;
- }
- static int hci_resolve_name(struct hci_dev *hdev,
- struct inquiry_entry *e)
- {
- struct hci_cp_remote_name_req cp;
- memset(&cp, 0, sizeof(cp));
- bacpy(&cp.bdaddr, &e->data.bdaddr);
- cp.pscan_rep_mode = e->data.pscan_rep_mode;
- cp.pscan_mode = e->data.pscan_mode;
- cp.clock_offset = e->data.clock_offset;
- return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
- }
- static bool hci_resolve_next_name(struct hci_dev *hdev)
- {
- struct discovery_state *discov = &hdev->discovery;
- struct inquiry_entry *e;
- if (list_empty(&discov->resolve))
- return false;
- e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
- if (!e)
- return false;
- if (hci_resolve_name(hdev, e) == 0) {
- e->name_state = NAME_PENDING;
- return true;
- }
- return false;
- }
- static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
- bdaddr_t *bdaddr, u8 *name, u8 name_len)
- {
- struct discovery_state *discov = &hdev->discovery;
- struct inquiry_entry *e;
- /* Update the mgmt connected state if necessary. Be careful with
- * conn objects that exist but are not (yet) connected however.
- * Only those in BT_CONFIG or BT_CONNECTED states can be
- * considered connected.
- */
- if (conn &&
- (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
- !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
- mgmt_device_connected(hdev, conn, 0, name, name_len);
- if (discov->state == DISCOVERY_STOPPED)
- return;
- if (discov->state == DISCOVERY_STOPPING)
- goto discov_complete;
- if (discov->state != DISCOVERY_RESOLVING)
- return;
- e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
- /* If the device was not found in a list of found devices names of which
- * are pending. there is no need to continue resolving a next name as it
- * will be done upon receiving another Remote Name Request Complete
- * Event */
- if (!e)
- return;
- list_del(&e->list);
- if (name) {
- e->name_state = NAME_KNOWN;
- mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
- e->data.rssi, name, name_len);
- } else {
- e->name_state = NAME_NOT_KNOWN;
- }
- if (hci_resolve_next_name(hdev))
- return;
- discov_complete:
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- }
- static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_remote_name_req *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- /* If successful wait for the name req complete event before
- * checking for the need to do authentication */
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
- if (!conn)
- goto unlock;
- if (!hci_outgoing_auth_needed(hdev, conn))
- goto unlock;
- if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
- struct hci_cp_auth_requested auth_cp;
- set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
- auth_cp.handle = __cpu_to_le16(conn->handle);
- hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
- sizeof(auth_cp), &auth_cp);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_read_remote_features *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- if (conn->state == BT_CONFIG) {
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_read_remote_ext_features *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- if (conn->state == BT_CONFIG) {
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_setup_sync_conn *cp;
- struct hci_conn *acl, *sco;
- __u16 handle;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
- if (!cp)
- return;
- handle = __le16_to_cpu(cp->handle);
- BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
- hci_dev_lock(hdev);
- acl = hci_conn_hash_lookup_handle(hdev, handle);
- if (acl) {
- sco = acl->link;
- if (sco) {
- sco->state = BT_CLOSED;
- hci_connect_cfm(sco, status);
- hci_conn_del(sco);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_sniff_mode *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
- if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
- hci_sco_setup(conn, status);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
- {
- struct hci_cp_exit_sniff_mode *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
- if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
- hci_sco_setup(conn, status);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_disconnect *cp;
- struct hci_conn *conn;
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- u8 type = conn->type;
- mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
- conn->dst_type, status);
- /* If the disconnection failed for any reason, the upper layer
- * does not retry to disconnect in current implementation.
- * Hence, we need to do some basic cleanup here and re-enable
- * advertising if necessary.
- */
- hci_conn_del(conn);
- if (type == LE_LINK)
- hci_req_reenable_advertising(hdev);
- }
- hci_dev_unlock(hdev);
- }
- static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
- u8 peer_addr_type, u8 own_address_type,
- u8 filter_policy)
- {
- struct hci_conn *conn;
- conn = hci_conn_hash_lookup_le(hdev, peer_addr,
- peer_addr_type);
- if (!conn)
- return;
- /* Store the initiator and responder address information which
- * is needed for SMP. These values will not change during the
- * lifetime of the connection.
- */
- conn->init_addr_type = own_address_type;
- if (own_address_type == ADDR_LE_DEV_RANDOM)
- bacpy(&conn->init_addr, &hdev->random_addr);
- else
- bacpy(&conn->init_addr, &hdev->bdaddr);
- conn->resp_addr_type = peer_addr_type;
- bacpy(&conn->resp_addr, peer_addr);
- /* We don't want the connection attempt to stick around
- * indefinitely since LE doesn't have a page timeout concept
- * like BR/EDR. Set a timer for any connection that doesn't use
- * the white list for connecting.
- */
- if (filter_policy == HCI_LE_USE_PEER_ADDR)
- queue_delayed_work(conn->hdev->workqueue,
- &conn->le_conn_timeout,
- conn->conn_timeout);
- }
- static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_le_create_conn *cp;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- /* All connection failure handling is taken care of by the
- * hci_le_conn_failed function which is triggered by the HCI
- * request completion callbacks used for connecting.
- */
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
- cp->own_address_type, cp->filter_policy);
- hci_dev_unlock(hdev);
- }
- static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_le_ext_create_conn *cp;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- /* All connection failure handling is taken care of by the
- * hci_le_conn_failed function which is triggered by the HCI
- * request completion callbacks used for connecting.
- */
- if (status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
- cp->own_addr_type, cp->filter_policy);
- hci_dev_unlock(hdev);
- }
- static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_le_read_remote_features *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (conn) {
- if (conn->state == BT_CONFIG) {
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_le_start_enc *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- hci_dev_lock(hdev);
- cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
- if (!cp)
- goto unlock;
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
- if (!conn)
- goto unlock;
- if (conn->state != BT_CONNECTED)
- goto unlock;
- hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_drop(conn);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
- {
- struct hci_cp_switch_role *cp;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- if (!status)
- return;
- cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
- if (!cp)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
- if (conn)
- clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
- hci_dev_unlock(hdev);
- }
- static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- __u8 status = *((__u8 *) skb->data);
- struct discovery_state *discov = &hdev->discovery;
- struct inquiry_entry *e;
- BT_DBG("%s status 0x%2.2x", hdev->name, status);
- hci_conn_check_pending(hdev);
- if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
- return;
- smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
- wake_up_bit(&hdev->flags, HCI_INQUIRY);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- return;
- hci_dev_lock(hdev);
- if (discov->state != DISCOVERY_FINDING)
- goto unlock;
- if (list_empty(&discov->resolve)) {
- /* When BR/EDR inquiry is active and no LE scanning is in
- * progress, then change discovery state to indicate completion.
- *
- * When running LE scanning and BR/EDR inquiry simultaneously
- * and the LE scan already finished, then change the discovery
- * state to indicate completion.
- */
- if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
- !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- goto unlock;
- }
- e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
- if (e && hci_resolve_name(hdev, e) == 0) {
- e->name_state = NAME_PENDING;
- hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
- } else {
- /* When BR/EDR inquiry is active and no LE scanning is in
- * progress, then change discovery state to indicate completion.
- *
- * When running LE scanning and BR/EDR inquiry simultaneously
- * and the LE scan already finished, then change the discovery
- * state to indicate completion.
- */
- if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
- !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
- hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct inquiry_data data;
- struct inquiry_info *info = (void *) (skb->data + 1);
- int num_rsp = *((__u8 *) skb->data);
- BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
- if (!num_rsp)
- return;
- if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
- return;
- hci_dev_lock(hdev);
- for (; num_rsp; num_rsp--, info++) {
- u32 flags;
- bacpy(&data.bdaddr, &info->bdaddr);
- data.pscan_rep_mode = info->pscan_rep_mode;
- data.pscan_period_mode = info->pscan_period_mode;
- data.pscan_mode = info->pscan_mode;
- memcpy(data.dev_class, info->dev_class, 3);
- data.clock_offset = info->clock_offset;
- data.rssi = HCI_RSSI_INVALID;
- data.ssp_mode = 0x00;
- flags = hci_inquiry_cache_update(hdev, &data, false);
- mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
- info->dev_class, HCI_RSSI_INVALID,
- flags, NULL, 0, NULL, 0);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_conn_complete *ev = (void *) skb->data;
- struct inquiry_entry *ie;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
- if (!conn) {
- /* Connection may not exist if auto-connected. Check the inquiry
- * cache to see if we've already discovered this bdaddr before.
- * If found and link is an ACL type, create a connection class
- * automatically.
- */
- ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
- if (ie && ev->link_type == ACL_LINK) {
- conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
- HCI_ROLE_SLAVE);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new conn");
- goto unlock;
- }
- } else {
- if (ev->link_type != SCO_LINK)
- goto unlock;
- conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
- &ev->bdaddr);
- if (!conn)
- goto unlock;
- conn->type = SCO_LINK;
- }
- }
- if (!ev->status) {
- conn->handle = __le16_to_cpu(ev->handle);
- if (conn->type == ACL_LINK) {
- conn->state = BT_CONFIG;
- hci_conn_hold(conn);
- if (!conn->out && !hci_conn_ssp_enabled(conn) &&
- !hci_find_link_key(hdev, &ev->bdaddr))
- conn->disc_timeout = HCI_PAIRING_TIMEOUT;
- else
- conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- } else
- conn->state = BT_CONNECTED;
- hci_debugfs_create_conn(conn);
- hci_conn_add_sysfs(conn);
- if (test_bit(HCI_AUTH, &hdev->flags))
- set_bit(HCI_CONN_AUTH, &conn->flags);
- if (test_bit(HCI_ENCRYPT, &hdev->flags))
- set_bit(HCI_CONN_ENCRYPT, &conn->flags);
- /* Get remote features */
- if (conn->type == ACL_LINK) {
- struct hci_cp_read_remote_features cp;
- cp.handle = ev->handle;
- hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
- sizeof(cp), &cp);
- hci_req_update_scan(hdev);
- }
- /* Set packet type for incoming connection */
- if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
- struct hci_cp_change_conn_ptype cp;
- cp.handle = ev->handle;
- cp.pkt_type = cpu_to_le16(conn->pkt_type);
- hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
- &cp);
- }
- } else {
- conn->state = BT_CLOSED;
- if (conn->type == ACL_LINK)
- mgmt_connect_failed(hdev, &conn->dst, conn->type,
- conn->dst_type, ev->status);
- }
- if (conn->type == ACL_LINK)
- hci_sco_setup(conn, ev->status);
- if (ev->status) {
- hci_connect_cfm(conn, ev->status);
- hci_conn_del(conn);
- } else if (ev->link_type != ACL_LINK)
- hci_connect_cfm(conn, ev->status);
- unlock:
- hci_dev_unlock(hdev);
- hci_conn_check_pending(hdev);
- }
- static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
- {
- struct hci_cp_reject_conn_req cp;
- bacpy(&cp.bdaddr, bdaddr);
- cp.reason = HCI_ERROR_REJ_BAD_ADDR;
- hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
- }
- static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_conn_request *ev = (void *) skb->data;
- int mask = hdev->link_mode;
- struct inquiry_entry *ie;
- struct hci_conn *conn;
- __u8 flags = 0;
- BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
- ev->link_type);
- mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
- &flags);
- if (!(mask & HCI_LM_ACCEPT)) {
- hci_reject_conn(hdev, &ev->bdaddr);
- return;
- }
- if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
- BDADDR_BREDR)) {
- hci_reject_conn(hdev, &ev->bdaddr);
- return;
- }
- /* Require HCI_CONNECTABLE or a whitelist entry to accept the
- * connection. These features are only touched through mgmt so
- * only do the checks if HCI_MGMT is set.
- */
- if (hci_dev_test_flag(hdev, HCI_MGMT) &&
- !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
- !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
- BDADDR_BREDR)) {
- hci_reject_conn(hdev, &ev->bdaddr);
- return;
- }
- /* Connection accepted */
- hci_dev_lock(hdev);
- ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
- if (ie)
- memcpy(ie->data.dev_class, ev->dev_class, 3);
- conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
- &ev->bdaddr);
- if (!conn) {
- conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
- HCI_ROLE_SLAVE);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new connection");
- hci_dev_unlock(hdev);
- return;
- }
- }
- memcpy(conn->dev_class, ev->dev_class, 3);
- hci_dev_unlock(hdev);
- if (ev->link_type == ACL_LINK ||
- (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
- struct hci_cp_accept_conn_req cp;
- conn->state = BT_CONNECT;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
- cp.role = 0x00; /* Become master */
- else
- cp.role = 0x01; /* Remain slave */
- hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
- } else if (!(flags & HCI_PROTO_DEFER)) {
- struct hci_cp_accept_sync_conn_req cp;
- conn->state = BT_CONNECT;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- cp.pkt_type = cpu_to_le16(conn->pkt_type);
- cp.tx_bandwidth = cpu_to_le32(0x00001f40);
- cp.rx_bandwidth = cpu_to_le32(0x00001f40);
- cp.max_latency = cpu_to_le16(0xffff);
- cp.content_format = cpu_to_le16(hdev->voice_setting);
- cp.retrans_effort = 0xff;
- hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
- &cp);
- } else {
- conn->state = BT_CONNECT2;
- hci_connect_cfm(conn, 0);
- }
- }
- static u8 hci_to_mgmt_reason(u8 err)
- {
- switch (err) {
- case HCI_ERROR_CONNECTION_TIMEOUT:
- return MGMT_DEV_DISCONN_TIMEOUT;
- case HCI_ERROR_REMOTE_USER_TERM:
- case HCI_ERROR_REMOTE_LOW_RESOURCES:
- case HCI_ERROR_REMOTE_POWER_OFF:
- return MGMT_DEV_DISCONN_REMOTE;
- case HCI_ERROR_LOCAL_HOST_TERM:
- return MGMT_DEV_DISCONN_LOCAL_HOST;
- default:
- return MGMT_DEV_DISCONN_UNKNOWN;
- }
- }
- static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_disconn_complete *ev = (void *) skb->data;
- u8 reason;
- struct hci_conn_params *params;
- struct hci_conn *conn;
- bool mgmt_connected;
- u8 type;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- if (ev->status) {
- mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
- conn->dst_type, ev->status);
- goto unlock;
- }
- conn->state = BT_CLOSED;
- mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
- if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
- reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
- else
- reason = hci_to_mgmt_reason(ev->reason);
- mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
- reason, mgmt_connected);
- if (conn->type == ACL_LINK) {
- if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
- hci_remove_link_key(hdev, &conn->dst);
- hci_req_update_scan(hdev);
- }
- params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
- if (params) {
- switch (params->auto_connect) {
- case HCI_AUTO_CONN_LINK_LOSS:
- if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
- break;
- /* Fall through */
- case HCI_AUTO_CONN_DIRECT:
- case HCI_AUTO_CONN_ALWAYS:
- list_del_init(¶ms->action);
- list_add(¶ms->action, &hdev->pend_le_conns);
- hci_update_background_scan(hdev);
- break;
- default:
- break;
- }
- }
- type = conn->type;
- hci_disconn_cfm(conn, ev->reason);
- hci_conn_del(conn);
- /* The suspend notifier is waiting for all devices to disconnect so
- * clear the bit from pending tasks and inform the wait queue.
- */
- if (list_empty(&hdev->conn_hash.list) &&
- test_and_clear_bit(SUSPEND_DISCONNECTING, hdev->suspend_tasks)) {
- wake_up(&hdev->suspend_wait_q);
- }
- /* Re-enable advertising if necessary, since it might
- * have been disabled by the connection. From the
- * HCI_LE_Set_Advertise_Enable command description in
- * the core specification (v4.0):
- * "The Controller shall continue advertising until the Host
- * issues an LE_Set_Advertise_Enable command with
- * Advertising_Enable set to 0x00 (Advertising is disabled)
- * or until a connection is created or until the Advertising
- * is timed out due to Directed Advertising."
- */
- if (type == LE_LINK)
- hci_req_reenable_advertising(hdev);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_auth_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- if (!ev->status) {
- clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
- if (!hci_conn_ssp_enabled(conn) &&
- test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
- bt_dev_info(hdev, "re-auth of legacy device is not possible.");
- } else {
- set_bit(HCI_CONN_AUTH, &conn->flags);
- conn->sec_level = conn->pending_sec_level;
- }
- } else {
- if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
- set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
- mgmt_auth_failed(conn, ev->status);
- }
- clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
- clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
- if (conn->state == BT_CONFIG) {
- if (!ev->status && hci_conn_ssp_enabled(conn)) {
- struct hci_cp_set_conn_encrypt cp;
- cp.handle = ev->handle;
- cp.encrypt = 0x01;
- hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
- &cp);
- } else {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- }
- } else {
- hci_auth_cfm(conn, ev->status);
- hci_conn_hold(conn);
- conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_drop(conn);
- }
- if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
- if (!ev->status) {
- struct hci_cp_set_conn_encrypt cp;
- cp.handle = ev->handle;
- cp.encrypt = 0x01;
- hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
- &cp);
- } else {
- clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
- hci_encrypt_cfm(conn, ev->status, 0x00);
- }
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_remote_name *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_conn_check_pending(hdev);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- goto check_auth;
- if (ev->status == 0)
- hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
- strnlen(ev->name, HCI_MAX_NAME_LENGTH));
- else
- hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
- check_auth:
- if (!conn)
- goto unlock;
- if (!hci_outgoing_auth_needed(hdev, conn))
- goto unlock;
- if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
- struct hci_cp_auth_requested cp;
- set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
- cp.handle = __cpu_to_le16(conn->handle);
- hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
- u16 opcode, struct sk_buff *skb)
- {
- const struct hci_rp_read_enc_key_size *rp;
- struct hci_conn *conn;
- u16 handle;
- BT_DBG("%s status 0x%02x", hdev->name, status);
- if (!skb || skb->len < sizeof(*rp)) {
- bt_dev_err(hdev, "invalid read key size response");
- return;
- }
- rp = (void *)skb->data;
- handle = le16_to_cpu(rp->handle);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
- if (!conn)
- goto unlock;
- /* While unexpected, the read_enc_key_size command may fail. The most
- * secure approach is to then assume the key size is 0 to force a
- * disconnection.
- */
- if (rp->status) {
- bt_dev_err(hdev, "failed to read key size for handle %u",
- handle);
- conn->enc_key_size = 0;
- } else {
- conn->enc_key_size = rp->key_size;
- }
- if (conn->state == BT_CONFIG) {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, 0);
- hci_conn_drop(conn);
- } else {
- u8 encrypt;
- if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
- encrypt = 0x00;
- else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
- encrypt = 0x02;
- else
- encrypt = 0x01;
- hci_encrypt_cfm(conn, 0, encrypt);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_encrypt_change *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- if (!ev->status) {
- if (ev->encrypt) {
- /* Encryption implies authentication */
- set_bit(HCI_CONN_AUTH, &conn->flags);
- set_bit(HCI_CONN_ENCRYPT, &conn->flags);
- conn->sec_level = conn->pending_sec_level;
- /* P-256 authentication key implies FIPS */
- if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
- set_bit(HCI_CONN_FIPS, &conn->flags);
- if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
- conn->type == LE_LINK)
- set_bit(HCI_CONN_AES_CCM, &conn->flags);
- } else {
- clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
- clear_bit(HCI_CONN_AES_CCM, &conn->flags);
- }
- }
- /* We should disregard the current RPA and generate a new one
- * whenever the encryption procedure fails.
- */
- if (ev->status && conn->type == LE_LINK) {
- hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
- hci_adv_instances_set_rpa_expired(hdev, true);
- }
- clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
- if (ev->status && conn->state == BT_CONNECTED) {
- if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
- set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
- hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_drop(conn);
- goto unlock;
- }
- /* In Secure Connections Only mode, do not allow any connections
- * that are not encrypted with AES-CCM using a P-256 authenticated
- * combination key.
- */
- if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
- (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
- conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
- hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_drop(conn);
- goto unlock;
- }
- /* Try reading the encryption key size for encrypted ACL links */
- if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
- struct hci_cp_read_enc_key_size cp;
- struct hci_request req;
- /* Only send HCI_Read_Encryption_Key_Size if the
- * controller really supports it. If it doesn't, assume
- * the default size (16).
- */
- if (!(hdev->commands[20] & 0x10)) {
- conn->enc_key_size = HCI_LINK_KEY_SIZE;
- goto notify;
- }
- hci_req_init(&req, hdev);
- cp.handle = cpu_to_le16(conn->handle);
- hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
- if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
- bt_dev_err(hdev, "sending read key size failed");
- conn->enc_key_size = HCI_LINK_KEY_SIZE;
- goto notify;
- }
- goto unlock;
- }
- /* Set the default Authenticated Payload Timeout after
- * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
- * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
- * sent when the link is active and Encryption is enabled, the conn
- * type can be either LE or ACL and controller must support LMP Ping.
- * Ensure for AES-CCM encryption as well.
- */
- if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
- test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
- ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
- (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
- struct hci_cp_write_auth_payload_to cp;
- cp.handle = cpu_to_le16(conn->handle);
- cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
- hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
- sizeof(cp), &cp);
- }
- notify:
- if (conn->state == BT_CONFIG) {
- if (!ev->status)
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- } else
- hci_encrypt_cfm(conn, ev->status, ev->encrypt);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn) {
- if (!ev->status)
- set_bit(HCI_CONN_SECURE, &conn->flags);
- clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
- hci_key_change_cfm(conn, ev->status);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_remote_features_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_remote_features *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- if (!ev->status)
- memcpy(conn->features[0], ev->features, 8);
- if (conn->state != BT_CONFIG)
- goto unlock;
- if (!ev->status && lmp_ext_feat_capable(hdev) &&
- lmp_ext_feat_capable(conn)) {
- struct hci_cp_read_remote_ext_features cp;
- cp.handle = ev->handle;
- cp.page = 0x01;
- hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
- sizeof(cp), &cp);
- goto unlock;
- }
- if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
- struct hci_cp_remote_name_req cp;
- memset(&cp, 0, sizeof(cp));
- bacpy(&cp.bdaddr, &conn->dst);
- cp.pscan_rep_mode = 0x02;
- hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
- } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
- mgmt_device_connected(hdev, conn, 0, NULL, 0);
- if (!hci_outgoing_auth_needed(hdev, conn)) {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
- u16 *opcode, u8 *status,
- hci_req_complete_t *req_complete,
- hci_req_complete_skb_t *req_complete_skb)
- {
- struct hci_ev_cmd_complete *ev = (void *) skb->data;
- *opcode = __le16_to_cpu(ev->opcode);
- *status = skb->data[sizeof(*ev)];
- skb_pull(skb, sizeof(*ev));
- switch (*opcode) {
- case HCI_OP_INQUIRY_CANCEL:
- hci_cc_inquiry_cancel(hdev, skb);
- break;
- case HCI_OP_PERIODIC_INQ:
- hci_cc_periodic_inq(hdev, skb);
- break;
- case HCI_OP_EXIT_PERIODIC_INQ:
- hci_cc_exit_periodic_inq(hdev, skb);
- break;
- case HCI_OP_REMOTE_NAME_REQ_CANCEL:
- hci_cc_remote_name_req_cancel(hdev, skb);
- break;
- case HCI_OP_ROLE_DISCOVERY:
- hci_cc_role_discovery(hdev, skb);
- break;
- case HCI_OP_READ_LINK_POLICY:
- hci_cc_read_link_policy(hdev, skb);
- break;
- case HCI_OP_WRITE_LINK_POLICY:
- hci_cc_write_link_policy(hdev, skb);
- break;
- case HCI_OP_READ_DEF_LINK_POLICY:
- hci_cc_read_def_link_policy(hdev, skb);
- break;
- case HCI_OP_WRITE_DEF_LINK_POLICY:
- hci_cc_write_def_link_policy(hdev, skb);
- break;
- case HCI_OP_RESET:
- hci_cc_reset(hdev, skb);
- break;
- case HCI_OP_READ_STORED_LINK_KEY:
- hci_cc_read_stored_link_key(hdev, skb);
- break;
- case HCI_OP_DELETE_STORED_LINK_KEY:
- hci_cc_delete_stored_link_key(hdev, skb);
- break;
- case HCI_OP_WRITE_LOCAL_NAME:
- hci_cc_write_local_name(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_NAME:
- hci_cc_read_local_name(hdev, skb);
- break;
- case HCI_OP_WRITE_AUTH_ENABLE:
- hci_cc_write_auth_enable(hdev, skb);
- break;
- case HCI_OP_WRITE_ENCRYPT_MODE:
- hci_cc_write_encrypt_mode(hdev, skb);
- break;
- case HCI_OP_WRITE_SCAN_ENABLE:
- hci_cc_write_scan_enable(hdev, skb);
- break;
- case HCI_OP_READ_CLASS_OF_DEV:
- hci_cc_read_class_of_dev(hdev, skb);
- break;
- case HCI_OP_WRITE_CLASS_OF_DEV:
- hci_cc_write_class_of_dev(hdev, skb);
- break;
- case HCI_OP_READ_VOICE_SETTING:
- hci_cc_read_voice_setting(hdev, skb);
- break;
- case HCI_OP_WRITE_VOICE_SETTING:
- hci_cc_write_voice_setting(hdev, skb);
- break;
- case HCI_OP_READ_NUM_SUPPORTED_IAC:
- hci_cc_read_num_supported_iac(hdev, skb);
- break;
- case HCI_OP_WRITE_SSP_MODE:
- hci_cc_write_ssp_mode(hdev, skb);
- break;
- case HCI_OP_WRITE_SC_SUPPORT:
- hci_cc_write_sc_support(hdev, skb);
- break;
- case HCI_OP_READ_AUTH_PAYLOAD_TO:
- hci_cc_read_auth_payload_timeout(hdev, skb);
- break;
- case HCI_OP_WRITE_AUTH_PAYLOAD_TO:
- hci_cc_write_auth_payload_timeout(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_VERSION:
- hci_cc_read_local_version(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_COMMANDS:
- hci_cc_read_local_commands(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_FEATURES:
- hci_cc_read_local_features(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_EXT_FEATURES:
- hci_cc_read_local_ext_features(hdev, skb);
- break;
- case HCI_OP_READ_BUFFER_SIZE:
- hci_cc_read_buffer_size(hdev, skb);
- break;
- case HCI_OP_READ_BD_ADDR:
- hci_cc_read_bd_addr(hdev, skb);
- break;
- case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
- hci_cc_read_page_scan_activity(hdev, skb);
- break;
- case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
- hci_cc_write_page_scan_activity(hdev, skb);
- break;
- case HCI_OP_READ_PAGE_SCAN_TYPE:
- hci_cc_read_page_scan_type(hdev, skb);
- break;
- case HCI_OP_WRITE_PAGE_SCAN_TYPE:
- hci_cc_write_page_scan_type(hdev, skb);
- break;
- case HCI_OP_READ_DATA_BLOCK_SIZE:
- hci_cc_read_data_block_size(hdev, skb);
- break;
- case HCI_OP_READ_FLOW_CONTROL_MODE:
- hci_cc_read_flow_control_mode(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_AMP_INFO:
- hci_cc_read_local_amp_info(hdev, skb);
- break;
- case HCI_OP_READ_CLOCK:
- hci_cc_read_clock(hdev, skb);
- break;
- case HCI_OP_READ_INQ_RSP_TX_POWER:
- hci_cc_read_inq_rsp_tx_power(hdev, skb);
- break;
- case HCI_OP_READ_DEF_ERR_DATA_REPORTING:
- hci_cc_read_def_err_data_reporting(hdev, skb);
- break;
- case HCI_OP_WRITE_DEF_ERR_DATA_REPORTING:
- hci_cc_write_def_err_data_reporting(hdev, skb);
- break;
- case HCI_OP_PIN_CODE_REPLY:
- hci_cc_pin_code_reply(hdev, skb);
- break;
- case HCI_OP_PIN_CODE_NEG_REPLY:
- hci_cc_pin_code_neg_reply(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_OOB_DATA:
- hci_cc_read_local_oob_data(hdev, skb);
- break;
- case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
- hci_cc_read_local_oob_ext_data(hdev, skb);
- break;
- case HCI_OP_LE_READ_BUFFER_SIZE:
- hci_cc_le_read_buffer_size(hdev, skb);
- break;
- case HCI_OP_LE_READ_LOCAL_FEATURES:
- hci_cc_le_read_local_features(hdev, skb);
- break;
- case HCI_OP_LE_READ_ADV_TX_POWER:
- hci_cc_le_read_adv_tx_power(hdev, skb);
- break;
- case HCI_OP_USER_CONFIRM_REPLY:
- hci_cc_user_confirm_reply(hdev, skb);
- break;
- case HCI_OP_USER_CONFIRM_NEG_REPLY:
- hci_cc_user_confirm_neg_reply(hdev, skb);
- break;
- case HCI_OP_USER_PASSKEY_REPLY:
- hci_cc_user_passkey_reply(hdev, skb);
- break;
- case HCI_OP_USER_PASSKEY_NEG_REPLY:
- hci_cc_user_passkey_neg_reply(hdev, skb);
- break;
- case HCI_OP_LE_SET_RANDOM_ADDR:
- hci_cc_le_set_random_addr(hdev, skb);
- break;
- case HCI_OP_LE_SET_ADV_ENABLE:
- hci_cc_le_set_adv_enable(hdev, skb);
- break;
- case HCI_OP_LE_SET_SCAN_PARAM:
- hci_cc_le_set_scan_param(hdev, skb);
- break;
- case HCI_OP_LE_SET_SCAN_ENABLE:
- hci_cc_le_set_scan_enable(hdev, skb);
- break;
- case HCI_OP_LE_READ_WHITE_LIST_SIZE:
- hci_cc_le_read_white_list_size(hdev, skb);
- break;
- case HCI_OP_LE_CLEAR_WHITE_LIST:
- hci_cc_le_clear_white_list(hdev, skb);
- break;
- case HCI_OP_LE_ADD_TO_WHITE_LIST:
- hci_cc_le_add_to_white_list(hdev, skb);
- break;
- case HCI_OP_LE_DEL_FROM_WHITE_LIST:
- hci_cc_le_del_from_white_list(hdev, skb);
- break;
- case HCI_OP_LE_READ_SUPPORTED_STATES:
- hci_cc_le_read_supported_states(hdev, skb);
- break;
- case HCI_OP_LE_READ_DEF_DATA_LEN:
- hci_cc_le_read_def_data_len(hdev, skb);
- break;
- case HCI_OP_LE_WRITE_DEF_DATA_LEN:
- hci_cc_le_write_def_data_len(hdev, skb);
- break;
- case HCI_OP_LE_ADD_TO_RESOLV_LIST:
- hci_cc_le_add_to_resolv_list(hdev, skb);
- break;
- case HCI_OP_LE_DEL_FROM_RESOLV_LIST:
- hci_cc_le_del_from_resolv_list(hdev, skb);
- break;
- case HCI_OP_LE_CLEAR_RESOLV_LIST:
- hci_cc_le_clear_resolv_list(hdev, skb);
- break;
- case HCI_OP_LE_READ_RESOLV_LIST_SIZE:
- hci_cc_le_read_resolv_list_size(hdev, skb);
- break;
- case HCI_OP_LE_SET_ADDR_RESOLV_ENABLE:
- hci_cc_le_set_addr_resolution_enable(hdev, skb);
- break;
- case HCI_OP_LE_READ_MAX_DATA_LEN:
- hci_cc_le_read_max_data_len(hdev, skb);
- break;
- case HCI_OP_WRITE_LE_HOST_SUPPORTED:
- hci_cc_write_le_host_supported(hdev, skb);
- break;
- case HCI_OP_LE_SET_ADV_PARAM:
- hci_cc_set_adv_param(hdev, skb);
- break;
- case HCI_OP_READ_RSSI:
- hci_cc_read_rssi(hdev, skb);
- break;
- case HCI_OP_READ_TX_POWER:
- hci_cc_read_tx_power(hdev, skb);
- break;
- case HCI_OP_WRITE_SSP_DEBUG_MODE:
- hci_cc_write_ssp_debug_mode(hdev, skb);
- break;
- case HCI_OP_LE_SET_EXT_SCAN_PARAMS:
- hci_cc_le_set_ext_scan_param(hdev, skb);
- break;
- case HCI_OP_LE_SET_EXT_SCAN_ENABLE:
- hci_cc_le_set_ext_scan_enable(hdev, skb);
- break;
- case HCI_OP_LE_SET_DEFAULT_PHY:
- hci_cc_le_set_default_phy(hdev, skb);
- break;
- case HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS:
- hci_cc_le_read_num_adv_sets(hdev, skb);
- break;
- case HCI_OP_LE_SET_EXT_ADV_PARAMS:
- hci_cc_set_ext_adv_param(hdev, skb);
- break;
- case HCI_OP_LE_SET_EXT_ADV_ENABLE:
- hci_cc_le_set_ext_adv_enable(hdev, skb);
- break;
- case HCI_OP_LE_SET_ADV_SET_RAND_ADDR:
- hci_cc_le_set_adv_set_random_addr(hdev, skb);
- break;
- default:
- BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
- break;
- }
- if (*opcode != HCI_OP_NOP)
- cancel_delayed_work(&hdev->cmd_timer);
- if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
- atomic_set(&hdev->cmd_cnt, 1);
- hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
- req_complete_skb);
- if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
- bt_dev_err(hdev,
- "unexpected event for opcode 0x%4.4x", *opcode);
- return;
- }
- if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
- queue_work(hdev->workqueue, &hdev->cmd_work);
- }
- static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
- u16 *opcode, u8 *status,
- hci_req_complete_t *req_complete,
- hci_req_complete_skb_t *req_complete_skb)
- {
- struct hci_ev_cmd_status *ev = (void *) skb->data;
- skb_pull(skb, sizeof(*ev));
- *opcode = __le16_to_cpu(ev->opcode);
- *status = ev->status;
- switch (*opcode) {
- case HCI_OP_INQUIRY:
- hci_cs_inquiry(hdev, ev->status);
- break;
- case HCI_OP_CREATE_CONN:
- hci_cs_create_conn(hdev, ev->status);
- break;
- case HCI_OP_DISCONNECT:
- hci_cs_disconnect(hdev, ev->status);
- break;
- case HCI_OP_ADD_SCO:
- hci_cs_add_sco(hdev, ev->status);
- break;
- case HCI_OP_AUTH_REQUESTED:
- hci_cs_auth_requested(hdev, ev->status);
- break;
- case HCI_OP_SET_CONN_ENCRYPT:
- hci_cs_set_conn_encrypt(hdev, ev->status);
- break;
- case HCI_OP_REMOTE_NAME_REQ:
- hci_cs_remote_name_req(hdev, ev->status);
- break;
- case HCI_OP_READ_REMOTE_FEATURES:
- hci_cs_read_remote_features(hdev, ev->status);
- break;
- case HCI_OP_READ_REMOTE_EXT_FEATURES:
- hci_cs_read_remote_ext_features(hdev, ev->status);
- break;
- case HCI_OP_SETUP_SYNC_CONN:
- hci_cs_setup_sync_conn(hdev, ev->status);
- break;
- case HCI_OP_SNIFF_MODE:
- hci_cs_sniff_mode(hdev, ev->status);
- break;
- case HCI_OP_EXIT_SNIFF_MODE:
- hci_cs_exit_sniff_mode(hdev, ev->status);
- break;
- case HCI_OP_SWITCH_ROLE:
- hci_cs_switch_role(hdev, ev->status);
- break;
- case HCI_OP_LE_CREATE_CONN:
- hci_cs_le_create_conn(hdev, ev->status);
- break;
- case HCI_OP_LE_READ_REMOTE_FEATURES:
- hci_cs_le_read_remote_features(hdev, ev->status);
- break;
- case HCI_OP_LE_START_ENC:
- hci_cs_le_start_enc(hdev, ev->status);
- break;
- case HCI_OP_LE_EXT_CREATE_CONN:
- hci_cs_le_ext_create_conn(hdev, ev->status);
- break;
- default:
- BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
- break;
- }
- if (*opcode != HCI_OP_NOP)
- cancel_delayed_work(&hdev->cmd_timer);
- if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
- atomic_set(&hdev->cmd_cnt, 1);
- /* Indicate request completion if the command failed. Also, if
- * we're not waiting for a special event and we get a success
- * command status we should try to flag the request as completed
- * (since for this kind of commands there will not be a command
- * complete event).
- */
- if (ev->status ||
- (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event))
- hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
- req_complete_skb);
- if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
- bt_dev_err(hdev,
- "unexpected event for opcode 0x%4.4x", *opcode);
- return;
- }
- if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
- queue_work(hdev->workqueue, &hdev->cmd_work);
- }
- static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_hardware_error *ev = (void *) skb->data;
- hdev->hw_error_code = ev->code;
- queue_work(hdev->req_workqueue, &hdev->error_reset);
- }
- static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_role_change *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (conn) {
- if (!ev->status)
- conn->role = ev->role;
- clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
- hci_role_switch_cfm(conn, ev->status, ev->role);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
- int i;
- if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
- bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
- return;
- }
- if (skb->len < sizeof(*ev) ||
- skb->len < struct_size(ev, handles, ev->num_hndl)) {
- BT_DBG("%s bad parameters", hdev->name);
- return;
- }
- BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
- for (i = 0; i < ev->num_hndl; i++) {
- struct hci_comp_pkts_info *info = &ev->handles[i];
- struct hci_conn *conn;
- __u16 handle, count;
- handle = __le16_to_cpu(info->handle);
- count = __le16_to_cpu(info->count);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
- if (!conn)
- continue;
- conn->sent -= count;
- switch (conn->type) {
- case ACL_LINK:
- hdev->acl_cnt += count;
- if (hdev->acl_cnt > hdev->acl_pkts)
- hdev->acl_cnt = hdev->acl_pkts;
- break;
- case LE_LINK:
- if (hdev->le_pkts) {
- hdev->le_cnt += count;
- if (hdev->le_cnt > hdev->le_pkts)
- hdev->le_cnt = hdev->le_pkts;
- } else {
- hdev->acl_cnt += count;
- if (hdev->acl_cnt > hdev->acl_pkts)
- hdev->acl_cnt = hdev->acl_pkts;
- }
- break;
- case SCO_LINK:
- hdev->sco_cnt += count;
- if (hdev->sco_cnt > hdev->sco_pkts)
- hdev->sco_cnt = hdev->sco_pkts;
- break;
- default:
- bt_dev_err(hdev, "unknown type %d conn %p",
- conn->type, conn);
- break;
- }
- }
- queue_work(hdev->workqueue, &hdev->tx_work);
- }
- static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
- __u16 handle)
- {
- struct hci_chan *chan;
- switch (hdev->dev_type) {
- case HCI_PRIMARY:
- return hci_conn_hash_lookup_handle(hdev, handle);
- case HCI_AMP:
- chan = hci_chan_lookup_handle(hdev, handle);
- if (chan)
- return chan->conn;
- break;
- default:
- bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
- break;
- }
- return NULL;
- }
- static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
- int i;
- if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
- bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
- return;
- }
- if (skb->len < sizeof(*ev) ||
- skb->len < struct_size(ev, handles, ev->num_hndl)) {
- BT_DBG("%s bad parameters", hdev->name);
- return;
- }
- BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
- ev->num_hndl);
- for (i = 0; i < ev->num_hndl; i++) {
- struct hci_comp_blocks_info *info = &ev->handles[i];
- struct hci_conn *conn = NULL;
- __u16 handle, block_count;
- handle = __le16_to_cpu(info->handle);
- block_count = __le16_to_cpu(info->blocks);
- conn = __hci_conn_lookup_handle(hdev, handle);
- if (!conn)
- continue;
- conn->sent -= block_count;
- switch (conn->type) {
- case ACL_LINK:
- case AMP_LINK:
- hdev->block_cnt += block_count;
- if (hdev->block_cnt > hdev->num_blocks)
- hdev->block_cnt = hdev->num_blocks;
- break;
- default:
- bt_dev_err(hdev, "unknown type %d conn %p",
- conn->type, conn);
- break;
- }
- }
- queue_work(hdev->workqueue, &hdev->tx_work);
- }
- static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_mode_change *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn) {
- conn->mode = ev->mode;
- if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
- &conn->flags)) {
- if (conn->mode == HCI_CM_ACTIVE)
- set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
- else
- clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
- }
- if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
- hci_sco_setup(conn, ev->status);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_pin_code_req *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- if (conn->state == BT_CONNECTED) {
- hci_conn_hold(conn);
- conn->disc_timeout = HCI_PAIRING_TIMEOUT;
- hci_conn_drop(conn);
- }
- if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
- !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
- hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
- sizeof(ev->bdaddr), &ev->bdaddr);
- } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
- u8 secure;
- if (conn->pending_sec_level == BT_SECURITY_HIGH)
- secure = 1;
- else
- secure = 0;
- mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
- {
- if (key_type == HCI_LK_CHANGED_COMBINATION)
- return;
- conn->pin_length = pin_len;
- conn->key_type = key_type;
- switch (key_type) {
- case HCI_LK_LOCAL_UNIT:
- case HCI_LK_REMOTE_UNIT:
- case HCI_LK_DEBUG_COMBINATION:
- return;
- case HCI_LK_COMBINATION:
- if (pin_len == 16)
- conn->pending_sec_level = BT_SECURITY_HIGH;
- else
- conn->pending_sec_level = BT_SECURITY_MEDIUM;
- break;
- case HCI_LK_UNAUTH_COMBINATION_P192:
- case HCI_LK_UNAUTH_COMBINATION_P256:
- conn->pending_sec_level = BT_SECURITY_MEDIUM;
- break;
- case HCI_LK_AUTH_COMBINATION_P192:
- conn->pending_sec_level = BT_SECURITY_HIGH;
- break;
- case HCI_LK_AUTH_COMBINATION_P256:
- conn->pending_sec_level = BT_SECURITY_FIPS;
- break;
- }
- }
- static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_link_key_req *ev = (void *) skb->data;
- struct hci_cp_link_key_reply cp;
- struct hci_conn *conn;
- struct link_key *key;
- BT_DBG("%s", hdev->name);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- return;
- hci_dev_lock(hdev);
- key = hci_find_link_key(hdev, &ev->bdaddr);
- if (!key) {
- BT_DBG("%s link key not found for %pMR", hdev->name,
- &ev->bdaddr);
- goto not_found;
- }
- BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
- &ev->bdaddr);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (conn) {
- clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
- if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
- key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
- conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
- BT_DBG("%s ignoring unauthenticated key", hdev->name);
- goto not_found;
- }
- if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
- (conn->pending_sec_level == BT_SECURITY_HIGH ||
- conn->pending_sec_level == BT_SECURITY_FIPS)) {
- BT_DBG("%s ignoring key unauthenticated for high security",
- hdev->name);
- goto not_found;
- }
- conn_set_key(conn, key->type, key->pin_len);
- }
- bacpy(&cp.bdaddr, &ev->bdaddr);
- memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
- hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
- hci_dev_unlock(hdev);
- return;
- not_found:
- hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
- hci_dev_unlock(hdev);
- }
- static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_link_key_notify *ev = (void *) skb->data;
- struct hci_conn *conn;
- struct link_key *key;
- bool persistent;
- u8 pin_len = 0;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- hci_conn_hold(conn);
- conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_drop(conn);
- set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
- conn_set_key(conn, ev->key_type, conn->pin_length);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- goto unlock;
- key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
- ev->key_type, pin_len, &persistent);
- if (!key)
- goto unlock;
- /* Update connection information since adding the key will have
- * fixed up the type in the case of changed combination keys.
- */
- if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
- conn_set_key(conn, key->type, key->pin_len);
- mgmt_new_link_key(hdev, key, persistent);
- /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
- * is set. If it's not set simply remove the key from the kernel
- * list (we've still notified user space about it but with
- * store_hint being 0).
- */
- if (key->type == HCI_LK_DEBUG_COMBINATION &&
- !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
- list_del_rcu(&key->list);
- kfree_rcu(key, rcu);
- goto unlock;
- }
- if (persistent)
- clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
- else
- set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_clock_offset *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn && !ev->status) {
- struct inquiry_entry *ie;
- ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
- if (ie) {
- ie->data.clock_offset = ev->clock_offset;
- ie->timestamp = jiffies;
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_pkt_type_change *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn && !ev->status)
- conn->pkt_type = __le16_to_cpu(ev->pkt_type);
- hci_dev_unlock(hdev);
- }
- static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
- struct inquiry_entry *ie;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
- if (ie) {
- ie->data.pscan_rep_mode = ev->pscan_rep_mode;
- ie->timestamp = jiffies;
- }
- hci_dev_unlock(hdev);
- }
- static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct inquiry_data data;
- int num_rsp = *((__u8 *) skb->data);
- BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
- if (!num_rsp)
- return;
- if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
- return;
- hci_dev_lock(hdev);
- if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
- struct inquiry_info_with_rssi_and_pscan_mode *info;
- info = (void *) (skb->data + 1);
- for (; num_rsp; num_rsp--, info++) {
- u32 flags;
- bacpy(&data.bdaddr, &info->bdaddr);
- data.pscan_rep_mode = info->pscan_rep_mode;
- data.pscan_period_mode = info->pscan_period_mode;
- data.pscan_mode = info->pscan_mode;
- memcpy(data.dev_class, info->dev_class, 3);
- data.clock_offset = info->clock_offset;
- data.rssi = info->rssi;
- data.ssp_mode = 0x00;
- flags = hci_inquiry_cache_update(hdev, &data, false);
- mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
- info->dev_class, info->rssi,
- flags, NULL, 0, NULL, 0);
- }
- } else {
- struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
- for (; num_rsp; num_rsp--, info++) {
- u32 flags;
- bacpy(&data.bdaddr, &info->bdaddr);
- data.pscan_rep_mode = info->pscan_rep_mode;
- data.pscan_period_mode = info->pscan_period_mode;
- data.pscan_mode = 0x00;
- memcpy(data.dev_class, info->dev_class, 3);
- data.clock_offset = info->clock_offset;
- data.rssi = info->rssi;
- data.ssp_mode = 0x00;
- flags = hci_inquiry_cache_update(hdev, &data, false);
- mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
- info->dev_class, info->rssi,
- flags, NULL, 0, NULL, 0);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_remote_ext_features_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_remote_ext_features *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- if (ev->page < HCI_MAX_PAGES)
- memcpy(conn->features[ev->page], ev->features, 8);
- if (!ev->status && ev->page == 0x01) {
- struct inquiry_entry *ie;
- ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
- if (ie)
- ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
- if (ev->features[0] & LMP_HOST_SSP) {
- set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
- } else {
- /* It is mandatory by the Bluetooth specification that
- * Extended Inquiry Results are only used when Secure
- * Simple Pairing is enabled, but some devices violate
- * this.
- *
- * To make these devices work, the internal SSP
- * enabled flag needs to be cleared if the remote host
- * features do not indicate SSP support */
- clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
- }
- if (ev->features[0] & LMP_HOST_SC)
- set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
- }
- if (conn->state != BT_CONFIG)
- goto unlock;
- if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
- struct hci_cp_remote_name_req cp;
- memset(&cp, 0, sizeof(cp));
- bacpy(&cp.bdaddr, &conn->dst);
- cp.pscan_rep_mode = 0x02;
- hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
- } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
- mgmt_device_connected(hdev, conn, 0, NULL, 0);
- if (!hci_outgoing_auth_needed(hdev, conn)) {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
- if (!conn) {
- if (ev->link_type == ESCO_LINK)
- goto unlock;
- /* When the link type in the event indicates SCO connection
- * and lookup of the connection object fails, then check
- * if an eSCO connection object exists.
- *
- * The core limits the synchronous connections to either
- * SCO or eSCO. The eSCO connection is preferred and tried
- * to be setup first and until successfully established,
- * the link type will be hinted as eSCO.
- */
- conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- }
- switch (ev->status) {
- case 0x00:
- conn->handle = __le16_to_cpu(ev->handle);
- conn->state = BT_CONNECTED;
- conn->type = ev->link_type;
- hci_debugfs_create_conn(conn);
- hci_conn_add_sysfs(conn);
- break;
- case 0x10: /* Connection Accept Timeout */
- case 0x0d: /* Connection Rejected due to Limited Resources */
- case 0x11: /* Unsupported Feature or Parameter Value */
- case 0x1c: /* SCO interval rejected */
- case 0x1a: /* Unsupported Remote Feature */
- case 0x1f: /* Unspecified error */
- case 0x20: /* Unsupported LMP Parameter value */
- if (conn->out) {
- conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
- (hdev->esco_type & EDR_ESCO_MASK);
- if (hci_setup_sync(conn, conn->link->handle))
- goto unlock;
- }
- /* fall through */
- default:
- conn->state = BT_CLOSED;
- break;
- }
- hci_connect_cfm(conn, ev->status);
- if (ev->status)
- hci_conn_del(conn);
- unlock:
- hci_dev_unlock(hdev);
- }
- static inline size_t eir_get_length(u8 *eir, size_t eir_len)
- {
- size_t parsed = 0;
- while (parsed < eir_len) {
- u8 field_len = eir[0];
- if (field_len == 0)
- return parsed;
- parsed += field_len + 1;
- eir += field_len + 1;
- }
- return eir_len;
- }
- static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct inquiry_data data;
- struct extended_inquiry_info *info = (void *) (skb->data + 1);
- int num_rsp = *((__u8 *) skb->data);
- size_t eir_len;
- BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
- if (!num_rsp)
- return;
- if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
- return;
- hci_dev_lock(hdev);
- for (; num_rsp; num_rsp--, info++) {
- u32 flags;
- bool name_known;
- bacpy(&data.bdaddr, &info->bdaddr);
- data.pscan_rep_mode = info->pscan_rep_mode;
- data.pscan_period_mode = info->pscan_period_mode;
- data.pscan_mode = 0x00;
- memcpy(data.dev_class, info->dev_class, 3);
- data.clock_offset = info->clock_offset;
- data.rssi = info->rssi;
- data.ssp_mode = 0x01;
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- name_known = eir_get_data(info->data,
- sizeof(info->data),
- EIR_NAME_COMPLETE, NULL);
- else
- name_known = true;
- flags = hci_inquiry_cache_update(hdev, &data, name_known);
- eir_len = eir_get_length(info->data, sizeof(info->data));
- mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
- info->dev_class, info->rssi,
- flags, info->data, eir_len, NULL, 0);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
- __le16_to_cpu(ev->handle));
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- /* For BR/EDR the necessary steps are taken through the
- * auth_complete event.
- */
- if (conn->type != LE_LINK)
- goto unlock;
- if (!ev->status)
- conn->sec_level = conn->pending_sec_level;
- clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
- if (ev->status && conn->state == BT_CONNECTED) {
- hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
- hci_conn_drop(conn);
- goto unlock;
- }
- if (conn->state == BT_CONFIG) {
- if (!ev->status)
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- } else {
- hci_auth_cfm(conn, ev->status);
- hci_conn_hold(conn);
- conn->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_drop(conn);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static u8 hci_get_auth_req(struct hci_conn *conn)
- {
- /* If remote requests no-bonding follow that lead */
- if (conn->remote_auth == HCI_AT_NO_BONDING ||
- conn->remote_auth == HCI_AT_NO_BONDING_MITM)
- return conn->remote_auth | (conn->auth_type & 0x01);
- /* If both remote and local have enough IO capabilities, require
- * MITM protection
- */
- if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
- conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
- return conn->remote_auth | 0x01;
- /* No MITM protection possible so ignore remote requirement */
- return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
- }
- static u8 bredr_oob_data_present(struct hci_conn *conn)
- {
- struct hci_dev *hdev = conn->hdev;
- struct oob_data *data;
- data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
- if (!data)
- return 0x00;
- if (bredr_sc_enabled(hdev)) {
- /* When Secure Connections is enabled, then just
- * return the present value stored with the OOB
- * data. The stored value contains the right present
- * information. However it can only be trusted when
- * not in Secure Connection Only mode.
- */
- if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
- return data->present;
- /* When Secure Connections Only mode is enabled, then
- * the P-256 values are required. If they are not
- * available, then do not declare that OOB data is
- * present.
- */
- if (!memcmp(data->rand256, ZERO_KEY, 16) ||
- !memcmp(data->hash256, ZERO_KEY, 16))
- return 0x00;
- return 0x02;
- }
- /* When Secure Connections is not enabled or actually
- * not supported by the hardware, then check that if
- * P-192 data values are present.
- */
- if (!memcmp(data->rand192, ZERO_KEY, 16) ||
- !memcmp(data->hash192, ZERO_KEY, 16))
- return 0x00;
- return 0x01;
- }
- static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_io_capa_request *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- hci_conn_hold(conn);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- goto unlock;
- /* Allow pairing if we're pairable, the initiators of the
- * pairing or if the remote is not requesting bonding.
- */
- if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
- test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
- (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
- struct hci_cp_io_capability_reply cp;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- /* Change the IO capability from KeyboardDisplay
- * to DisplayYesNo as it is not supported by BT spec. */
- cp.capability = (conn->io_capability == 0x04) ?
- HCI_IO_DISPLAY_YESNO : conn->io_capability;
- /* If we are initiators, there is no remote information yet */
- if (conn->remote_auth == 0xff) {
- /* Request MITM protection if our IO caps allow it
- * except for the no-bonding case.
- */
- if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
- conn->auth_type != HCI_AT_NO_BONDING)
- conn->auth_type |= 0x01;
- } else {
- conn->auth_type = hci_get_auth_req(conn);
- }
- /* If we're not bondable, force one of the non-bondable
- * authentication requirement values.
- */
- if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
- conn->auth_type &= HCI_AT_NO_BONDING_MITM;
- cp.authentication = conn->auth_type;
- cp.oob_data = bredr_oob_data_present(conn);
- hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
- sizeof(cp), &cp);
- } else {
- struct hci_cp_io_capability_neg_reply cp;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
- hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
- sizeof(cp), &cp);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_io_capa_reply *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- conn->remote_cap = ev->capability;
- conn->remote_auth = ev->authentication;
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_user_confirm_request_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_user_confirm_req *ev = (void *) skb->data;
- int loc_mitm, rem_mitm, confirm_hint = 0;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- goto unlock;
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- loc_mitm = (conn->auth_type & 0x01);
- rem_mitm = (conn->remote_auth & 0x01);
- /* If we require MITM but the remote device can't provide that
- * (it has NoInputNoOutput) then reject the confirmation
- * request. We check the security level here since it doesn't
- * necessarily match conn->auth_type.
- */
- if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
- conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
- BT_DBG("Rejecting request: remote device can't provide MITM");
- hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
- sizeof(ev->bdaddr), &ev->bdaddr);
- goto unlock;
- }
- /* If no side requires MITM protection; auto-accept */
- if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
- (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
- /* If we're not the initiators request authorization to
- * proceed from user space (mgmt_user_confirm with
- * confirm_hint set to 1). The exception is if neither
- * side had MITM or if the local IO capability is
- * NoInputNoOutput, in which case we do auto-accept
- */
- if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
- conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
- (loc_mitm || rem_mitm)) {
- BT_DBG("Confirming auto-accept as acceptor");
- confirm_hint = 1;
- goto confirm;
- }
- /* If there already exists link key in local host, leave the
- * decision to user space since the remote device could be
- * legitimate or malicious.
- */
- if (hci_find_link_key(hdev, &ev->bdaddr)) {
- bt_dev_dbg(hdev, "Local host already has link key");
- confirm_hint = 1;
- goto confirm;
- }
- BT_DBG("Auto-accept of user confirmation with %ums delay",
- hdev->auto_accept_delay);
- if (hdev->auto_accept_delay > 0) {
- int delay = msecs_to_jiffies(hdev->auto_accept_delay);
- queue_delayed_work(conn->hdev->workqueue,
- &conn->auto_accept_work, delay);
- goto unlock;
- }
- hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
- sizeof(ev->bdaddr), &ev->bdaddr);
- goto unlock;
- }
- confirm:
- mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
- le32_to_cpu(ev->passkey), confirm_hint);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_user_passkey_request_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_user_passkey_req *ev = (void *) skb->data;
- BT_DBG("%s", hdev->name);
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
- }
- static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- return;
- conn->passkey_notify = __le32_to_cpu(ev->passkey);
- conn->passkey_entered = 0;
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
- conn->dst_type, conn->passkey_notify,
- conn->passkey_entered);
- }
- static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_keypress_notify *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- return;
- switch (ev->type) {
- case HCI_KEYPRESS_STARTED:
- conn->passkey_entered = 0;
- return;
- case HCI_KEYPRESS_ENTERED:
- conn->passkey_entered++;
- break;
- case HCI_KEYPRESS_ERASED:
- conn->passkey_entered--;
- break;
- case HCI_KEYPRESS_CLEARED:
- conn->passkey_entered = 0;
- break;
- case HCI_KEYPRESS_COMPLETED:
- return;
- }
- if (hci_dev_test_flag(hdev, HCI_MGMT))
- mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
- conn->dst_type, conn->passkey_notify,
- conn->passkey_entered);
- }
- static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (!conn)
- goto unlock;
- /* Reset the authentication requirement to unknown */
- conn->remote_auth = 0xff;
- /* To avoid duplicate auth_failed events to user space we check
- * the HCI_CONN_AUTH_PEND flag which will be set if we
- * initiated the authentication. A traditional auth_complete
- * event gets always produced as initiator and is also mapped to
- * the mgmt_auth_failed event */
- if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
- mgmt_auth_failed(conn, ev->status);
- hci_conn_drop(conn);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_remote_host_features_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_remote_host_features *ev = (void *) skb->data;
- struct inquiry_entry *ie;
- struct hci_conn *conn;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (conn)
- memcpy(conn->features[1], ev->features, 8);
- ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
- if (ie)
- ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
- hci_dev_unlock(hdev);
- }
- static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
- struct oob_data *data;
- BT_DBG("%s", hdev->name);
- hci_dev_lock(hdev);
- if (!hci_dev_test_flag(hdev, HCI_MGMT))
- goto unlock;
- data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
- if (!data) {
- struct hci_cp_remote_oob_data_neg_reply cp;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
- sizeof(cp), &cp);
- goto unlock;
- }
- if (bredr_sc_enabled(hdev)) {
- struct hci_cp_remote_oob_ext_data_reply cp;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
- memset(cp.hash192, 0, sizeof(cp.hash192));
- memset(cp.rand192, 0, sizeof(cp.rand192));
- } else {
- memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
- memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
- }
- memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
- memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
- hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
- sizeof(cp), &cp);
- } else {
- struct hci_cp_remote_oob_data_reply cp;
- bacpy(&cp.bdaddr, &ev->bdaddr);
- memcpy(cp.hash, data->hash192, sizeof(cp.hash));
- memcpy(cp.rand, data->rand192, sizeof(cp.rand));
- hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
- sizeof(cp), &cp);
- }
- unlock:
- hci_dev_unlock(hdev);
- }
- #if IS_ENABLED(CONFIG_BT_HS)
- static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_channel_selected *ev = (void *)skb->data;
- struct hci_conn *hcon;
- BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
- skb_pull(skb, sizeof(*ev));
- hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
- if (!hcon)
- return;
- amp_read_loc_assoc_final_data(hdev, hcon);
- }
- static void hci_phy_link_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_phy_link_complete *ev = (void *) skb->data;
- struct hci_conn *hcon, *bredr_hcon;
- BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
- ev->status);
- hci_dev_lock(hdev);
- hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
- if (!hcon) {
- hci_dev_unlock(hdev);
- return;
- }
- if (ev->status) {
- hci_conn_del(hcon);
- hci_dev_unlock(hdev);
- return;
- }
- bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
- hcon->state = BT_CONNECTED;
- bacpy(&hcon->dst, &bredr_hcon->dst);
- hci_conn_hold(hcon);
- hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
- hci_conn_drop(hcon);
- hci_debugfs_create_conn(hcon);
- hci_conn_add_sysfs(hcon);
- amp_physical_cfm(bredr_hcon, hcon);
- hci_dev_unlock(hdev);
- }
- static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_logical_link_complete *ev = (void *) skb->data;
- struct hci_conn *hcon;
- struct hci_chan *hchan;
- struct amp_mgr *mgr;
- BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
- hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
- ev->status);
- hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
- if (!hcon)
- return;
- /* Create AMP hchan */
- hchan = hci_chan_create(hcon);
- if (!hchan)
- return;
- hchan->handle = le16_to_cpu(ev->handle);
- BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
- mgr = hcon->amp_mgr;
- if (mgr && mgr->bredr_chan) {
- struct l2cap_chan *bredr_chan = mgr->bredr_chan;
- l2cap_chan_lock(bredr_chan);
- bredr_chan->conn->mtu = hdev->block_mtu;
- l2cap_logical_cfm(bredr_chan, hchan, 0);
- hci_conn_hold(hcon);
- l2cap_chan_unlock(bredr_chan);
- }
- }
- static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
- struct hci_chan *hchan;
- BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
- le16_to_cpu(ev->handle), ev->status);
- if (ev->status)
- return;
- hci_dev_lock(hdev);
- hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
- if (!hchan)
- goto unlock;
- amp_destroy_logical_link(hchan, ev->reason);
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
- struct hci_conn *hcon;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- if (ev->status)
- return;
- hci_dev_lock(hdev);
- hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
- if (hcon) {
- hcon->state = BT_CLOSED;
- hci_conn_del(hcon);
- }
- hci_dev_unlock(hdev);
- }
- #endif
- static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
- bdaddr_t *bdaddr, u8 bdaddr_type, u8 role, u16 handle,
- u16 interval, u16 latency, u16 supervision_timeout)
- {
- struct hci_conn_params *params;
- struct hci_conn *conn;
- struct smp_irk *irk;
- u8 addr_type;
- hci_dev_lock(hdev);
- /* All controllers implicitly stop advertising in the event of a
- * connection, so ensure that the state bit is cleared.
- */
- hci_dev_clear_flag(hdev, HCI_LE_ADV);
- conn = hci_lookup_le_connect(hdev);
- if (!conn) {
- conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
- if (!conn) {
- bt_dev_err(hdev, "no memory for new connection");
- goto unlock;
- }
- conn->dst_type = bdaddr_type;
- /* If we didn't have a hci_conn object previously
- * but we're in master role this must be something
- * initiated using a white list. Since white list based
- * connections are not "first class citizens" we don't
- * have full tracking of them. Therefore, we go ahead
- * with a "best effort" approach of determining the
- * initiator address based on the HCI_PRIVACY flag.
- */
- if (conn->out) {
- conn->resp_addr_type = bdaddr_type;
- bacpy(&conn->resp_addr, bdaddr);
- if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
- conn->init_addr_type = ADDR_LE_DEV_RANDOM;
- bacpy(&conn->init_addr, &hdev->rpa);
- } else {
- hci_copy_identity_address(hdev,
- &conn->init_addr,
- &conn->init_addr_type);
- }
- }
- } else {
- cancel_delayed_work(&conn->le_conn_timeout);
- }
- if (!conn->out) {
- /* Set the responder (our side) address type based on
- * the advertising address type.
- */
- conn->resp_addr_type = hdev->adv_addr_type;
- if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
- /* In case of ext adv, resp_addr will be updated in
- * Adv Terminated event.
- */
- if (!ext_adv_capable(hdev))
- bacpy(&conn->resp_addr, &hdev->random_addr);
- } else {
- bacpy(&conn->resp_addr, &hdev->bdaddr);
- }
- conn->init_addr_type = bdaddr_type;
- bacpy(&conn->init_addr, bdaddr);
- /* For incoming connections, set the default minimum
- * and maximum connection interval. They will be used
- * to check if the parameters are in range and if not
- * trigger the connection update procedure.
- */
- conn->le_conn_min_interval = hdev->le_conn_min_interval;
- conn->le_conn_max_interval = hdev->le_conn_max_interval;
- }
- /* Lookup the identity address from the stored connection
- * address and address type.
- *
- * When establishing connections to an identity address, the
- * connection procedure will store the resolvable random
- * address first. Now if it can be converted back into the
- * identity address, start using the identity address from
- * now on.
- */
- irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
- if (irk) {
- bacpy(&conn->dst, &irk->bdaddr);
- conn->dst_type = irk->addr_type;
- }
- if (status) {
- hci_le_conn_failed(conn, status);
- goto unlock;
- }
- if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
- addr_type = BDADDR_LE_PUBLIC;
- else
- addr_type = BDADDR_LE_RANDOM;
- /* Drop the connection if the device is blocked */
- if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
- hci_conn_drop(conn);
- goto unlock;
- }
- if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
- mgmt_device_connected(hdev, conn, 0, NULL, 0);
- conn->sec_level = BT_SECURITY_LOW;
- conn->handle = handle;
- conn->state = BT_CONFIG;
- conn->le_conn_interval = interval;
- conn->le_conn_latency = latency;
- conn->le_supv_timeout = supervision_timeout;
- hci_debugfs_create_conn(conn);
- hci_conn_add_sysfs(conn);
- /* The remote features procedure is defined for master
- * role only. So only in case of an initiated connection
- * request the remote features.
- *
- * If the local controller supports slave-initiated features
- * exchange, then requesting the remote features in slave
- * role is possible. Otherwise just transition into the
- * connected state without requesting the remote features.
- */
- if (conn->out ||
- (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
- struct hci_cp_le_read_remote_features cp;
- cp.handle = __cpu_to_le16(conn->handle);
- hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
- sizeof(cp), &cp);
- hci_conn_hold(conn);
- } else {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, status);
- }
- params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
- conn->dst_type);
- if (params) {
- list_del_init(¶ms->action);
- if (params->conn) {
- hci_conn_drop(params->conn);
- hci_conn_put(params->conn);
- params->conn = NULL;
- }
- }
- unlock:
- hci_update_background_scan(hdev);
- hci_dev_unlock(hdev);
- }
- static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_le_conn_complete *ev = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
- ev->role, le16_to_cpu(ev->handle),
- le16_to_cpu(ev->interval),
- le16_to_cpu(ev->latency),
- le16_to_cpu(ev->supervision_timeout));
- }
- static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_le_enh_conn_complete *ev = (void *) skb->data;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
- ev->role, le16_to_cpu(ev->handle),
- le16_to_cpu(ev->interval),
- le16_to_cpu(ev->latency),
- le16_to_cpu(ev->supervision_timeout));
- }
- static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- if (ev->status)
- return;
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
- if (conn) {
- struct adv_info *adv_instance;
- if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM)
- return;
- if (!hdev->cur_adv_instance) {
- bacpy(&conn->resp_addr, &hdev->random_addr);
- return;
- }
- adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
- if (adv_instance)
- bacpy(&conn->resp_addr, &adv_instance->random_addr);
- }
- }
- static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- if (ev->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn) {
- conn->le_conn_interval = le16_to_cpu(ev->interval);
- conn->le_conn_latency = le16_to_cpu(ev->latency);
- conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
- }
- hci_dev_unlock(hdev);
- }
- /* This function requires the caller holds hdev->lock */
- static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
- bdaddr_t *addr,
- u8 addr_type, u8 adv_type,
- bdaddr_t *direct_rpa)
- {
- struct hci_conn *conn;
- struct hci_conn_params *params;
- /* If the event is not connectable don't proceed further */
- if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
- return NULL;
- /* Ignore if the device is blocked */
- if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
- return NULL;
- /* Most controller will fail if we try to create new connections
- * while we have an existing one in slave role.
- */
- if (hdev->conn_hash.le_num_slave > 0)
- return NULL;
- /* If we're not connectable only connect devices that we have in
- * our pend_le_conns list.
- */
- params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
- addr_type);
- if (!params)
- return NULL;
- if (!params->explicit_connect) {
- switch (params->auto_connect) {
- case HCI_AUTO_CONN_DIRECT:
- /* Only devices advertising with ADV_DIRECT_IND are
- * triggering a connection attempt. This is allowing
- * incoming connections from slave devices.
- */
- if (adv_type != LE_ADV_DIRECT_IND)
- return NULL;
- break;
- case HCI_AUTO_CONN_ALWAYS:
- /* Devices advertising with ADV_IND or ADV_DIRECT_IND
- * are triggering a connection attempt. This means
- * that incoming connectioms from slave device are
- * accepted and also outgoing connections to slave
- * devices are established when found.
- */
- break;
- default:
- return NULL;
- }
- }
- conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
- HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
- direct_rpa);
- if (!IS_ERR(conn)) {
- /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
- * by higher layer that tried to connect, if no then
- * store the pointer since we don't really have any
- * other owner of the object besides the params that
- * triggered it. This way we can abort the connection if
- * the parameters get removed and keep the reference
- * count consistent once the connection is established.
- */
- if (!params->explicit_connect)
- params->conn = hci_conn_get(conn);
- return conn;
- }
- switch (PTR_ERR(conn)) {
- case -EBUSY:
- /* If hci_connect() returns -EBUSY it means there is already
- * an LE connection attempt going on. Since controllers don't
- * support more than one connection attempt at the time, we
- * don't consider this an error case.
- */
- break;
- default:
- BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
- return NULL;
- }
- return NULL;
- }
- static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
- u8 bdaddr_type, bdaddr_t *direct_addr,
- u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
- {
- struct discovery_state *d = &hdev->discovery;
- struct smp_irk *irk;
- struct hci_conn *conn;
- bool match;
- u32 flags;
- u8 *ptr, real_len;
- switch (type) {
- case LE_ADV_IND:
- case LE_ADV_DIRECT_IND:
- case LE_ADV_SCAN_IND:
- case LE_ADV_NONCONN_IND:
- case LE_ADV_SCAN_RSP:
- break;
- default:
- bt_dev_err_ratelimited(hdev, "unknown advertising packet "
- "type: 0x%02x", type);
- return;
- }
- /* Find the end of the data in case the report contains padded zero
- * bytes at the end causing an invalid length value.
- *
- * When data is NULL, len is 0 so there is no need for extra ptr
- * check as 'ptr < data + 0' is already false in such case.
- */
- for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
- if (ptr + 1 + *ptr > data + len)
- break;
- }
- real_len = ptr - data;
- /* Adjust for actual length */
- if (len != real_len) {
- bt_dev_err_ratelimited(hdev, "advertising data len corrected");
- len = real_len;
- }
- /* If the direct address is present, then this report is from
- * a LE Direct Advertising Report event. In that case it is
- * important to see if the address is matching the local
- * controller address.
- */
- if (direct_addr) {
- /* Only resolvable random addresses are valid for these
- * kind of reports and others can be ignored.
- */
- if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
- return;
- /* If the controller is not using resolvable random
- * addresses, then this report can be ignored.
- */
- if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
- return;
- /* If the local IRK of the controller does not match
- * with the resolvable random address provided, then
- * this report can be ignored.
- */
- if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
- return;
- }
- /* Check if we need to convert to identity address */
- irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
- if (irk) {
- bdaddr = &irk->bdaddr;
- bdaddr_type = irk->addr_type;
- }
- /* Check if we have been requested to connect to this device.
- *
- * direct_addr is set only for directed advertising reports (it is NULL
- * for advertising reports) and is already verified to be RPA above.
- */
- conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type,
- direct_addr);
- if (conn && type == LE_ADV_IND) {
- /* Store report for later inclusion by
- * mgmt_device_connected
- */
- memcpy(conn->le_adv_data, data, len);
- conn->le_adv_data_len = len;
- }
- /* Passive scanning shouldn't trigger any device found events,
- * except for devices marked as CONN_REPORT for which we do send
- * device found events.
- */
- if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
- if (type == LE_ADV_DIRECT_IND)
- return;
- if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
- bdaddr, bdaddr_type))
- return;
- if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
- flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
- else
- flags = 0;
- mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
- rssi, flags, data, len, NULL, 0);
- return;
- }
- /* When receiving non-connectable or scannable undirected
- * advertising reports, this means that the remote device is
- * not connectable and then clearly indicate this in the
- * device found event.
- *
- * When receiving a scan response, then there is no way to
- * know if the remote device is connectable or not. However
- * since scan responses are merged with a previously seen
- * advertising report, the flags field from that report
- * will be used.
- *
- * In the really unlikely case that a controller get confused
- * and just sends a scan response event, then it is marked as
- * not connectable as well.
- */
- if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
- type == LE_ADV_SCAN_RSP)
- flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
- else
- flags = 0;
- /* If there's nothing pending either store the data from this
- * event or send an immediate device found event if the data
- * should not be stored for later.
- */
- if (!has_pending_adv_report(hdev)) {
- /* If the report will trigger a SCAN_REQ store it for
- * later merging.
- */
- if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
- store_pending_adv_report(hdev, bdaddr, bdaddr_type,
- rssi, flags, data, len);
- return;
- }
- mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
- rssi, flags, data, len, NULL, 0);
- return;
- }
- /* Check if the pending report is for the same device as the new one */
- match = (!bacmp(bdaddr, &d->last_adv_addr) &&
- bdaddr_type == d->last_adv_addr_type);
- /* If the pending data doesn't match this report or this isn't a
- * scan response (e.g. we got a duplicate ADV_IND) then force
- * sending of the pending data.
- */
- if (type != LE_ADV_SCAN_RSP || !match) {
- /* Send out whatever is in the cache, but skip duplicates */
- if (!match)
- mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
- d->last_adv_addr_type, NULL,
- d->last_adv_rssi, d->last_adv_flags,
- d->last_adv_data,
- d->last_adv_data_len, NULL, 0);
- /* If the new report will trigger a SCAN_REQ store it for
- * later merging.
- */
- if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
- store_pending_adv_report(hdev, bdaddr, bdaddr_type,
- rssi, flags, data, len);
- return;
- }
- /* The advertising reports cannot be merged, so clear
- * the pending report and send out a device found event.
- */
- clear_pending_adv_report(hdev);
- mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
- rssi, flags, data, len, NULL, 0);
- return;
- }
- /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
- * the new event is a SCAN_RSP. We can therefore proceed with
- * sending a merged device found event.
- */
- mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
- d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
- d->last_adv_data, d->last_adv_data_len, data, len);
- clear_pending_adv_report(hdev);
- }
- static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- u8 num_reports = skb->data[0];
- void *ptr = &skb->data[1];
- hci_dev_lock(hdev);
- while (num_reports--) {
- struct hci_ev_le_advertising_info *ev = ptr;
- s8 rssi;
- if (ev->length <= HCI_MAX_AD_LENGTH) {
- rssi = ev->data[ev->length];
- process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
- ev->bdaddr_type, NULL, 0, rssi,
- ev->data, ev->length);
- } else {
- bt_dev_err(hdev, "Dropping invalid advertising data");
- }
- ptr += sizeof(*ev) + ev->length + 1;
- }
- hci_dev_unlock(hdev);
- }
- static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
- {
- if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
- switch (evt_type) {
- case LE_LEGACY_ADV_IND:
- return LE_ADV_IND;
- case LE_LEGACY_ADV_DIRECT_IND:
- return LE_ADV_DIRECT_IND;
- case LE_LEGACY_ADV_SCAN_IND:
- return LE_ADV_SCAN_IND;
- case LE_LEGACY_NONCONN_IND:
- return LE_ADV_NONCONN_IND;
- case LE_LEGACY_SCAN_RSP_ADV:
- case LE_LEGACY_SCAN_RSP_ADV_SCAN:
- return LE_ADV_SCAN_RSP;
- }
- goto invalid;
- }
- if (evt_type & LE_EXT_ADV_CONN_IND) {
- if (evt_type & LE_EXT_ADV_DIRECT_IND)
- return LE_ADV_DIRECT_IND;
- return LE_ADV_IND;
- }
- if (evt_type & LE_EXT_ADV_SCAN_RSP)
- return LE_ADV_SCAN_RSP;
- if (evt_type & LE_EXT_ADV_SCAN_IND)
- return LE_ADV_SCAN_IND;
- if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
- evt_type & LE_EXT_ADV_DIRECT_IND)
- return LE_ADV_NONCONN_IND;
- invalid:
- bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
- evt_type);
- return LE_ADV_INVALID;
- }
- static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- u8 num_reports = skb->data[0];
- void *ptr = &skb->data[1];
- hci_dev_lock(hdev);
- while (num_reports--) {
- struct hci_ev_le_ext_adv_report *ev = ptr;
- u8 legacy_evt_type;
- u16 evt_type;
- evt_type = __le16_to_cpu(ev->evt_type);
- legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
- if (legacy_evt_type != LE_ADV_INVALID) {
- process_adv_report(hdev, legacy_evt_type, &ev->bdaddr,
- ev->bdaddr_type, NULL, 0, ev->rssi,
- ev->data, ev->length);
- }
- ptr += sizeof(*ev) + ev->length;
- }
- hci_dev_unlock(hdev);
- }
- static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn) {
- if (!ev->status)
- memcpy(conn->features[0], ev->features, 8);
- if (conn->state == BT_CONFIG) {
- __u8 status;
- /* If the local controller supports slave-initiated
- * features exchange, but the remote controller does
- * not, then it is possible that the error code 0x1a
- * for unsupported remote feature gets returned.
- *
- * In this specific case, allow the connection to
- * transition into connected state and mark it as
- * successful.
- */
- if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
- !conn->out && ev->status == 0x1a)
- status = 0x00;
- else
- status = ev->status;
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, status);
- hci_conn_drop(conn);
- }
- }
- hci_dev_unlock(hdev);
- }
- static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_le_ltk_req *ev = (void *) skb->data;
- struct hci_cp_le_ltk_reply cp;
- struct hci_cp_le_ltk_neg_reply neg;
- struct hci_conn *conn;
- struct smp_ltk *ltk;
- BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (conn == NULL)
- goto not_found;
- ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
- if (!ltk)
- goto not_found;
- if (smp_ltk_is_sc(ltk)) {
- /* With SC both EDiv and Rand are set to zero */
- if (ev->ediv || ev->rand)
- goto not_found;
- } else {
- /* For non-SC keys check that EDiv and Rand match */
- if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
- goto not_found;
- }
- memcpy(cp.ltk, ltk->val, ltk->enc_size);
- memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
- cp.handle = cpu_to_le16(conn->handle);
- conn->pending_sec_level = smp_ltk_sec_level(ltk);
- conn->enc_key_size = ltk->enc_size;
- hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
- /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
- * temporary key used to encrypt a connection following
- * pairing. It is used during the Encrypted Session Setup to
- * distribute the keys. Later, security can be re-established
- * using a distributed LTK.
- */
- if (ltk->type == SMP_STK) {
- set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
- list_del_rcu(<k->list);
- kfree_rcu(ltk, rcu);
- } else {
- clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
- }
- hci_dev_unlock(hdev);
- return;
- not_found:
- neg.handle = ev->handle;
- hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
- hci_dev_unlock(hdev);
- }
- static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
- u8 reason)
- {
- struct hci_cp_le_conn_param_req_neg_reply cp;
- cp.handle = cpu_to_le16(handle);
- cp.reason = reason;
- hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
- &cp);
- }
- static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
- struct hci_cp_le_conn_param_req_reply cp;
- struct hci_conn *hcon;
- u16 handle, min, max, latency, timeout;
- handle = le16_to_cpu(ev->handle);
- min = le16_to_cpu(ev->interval_min);
- max = le16_to_cpu(ev->interval_max);
- latency = le16_to_cpu(ev->latency);
- timeout = le16_to_cpu(ev->timeout);
- hcon = hci_conn_hash_lookup_handle(hdev, handle);
- if (!hcon || hcon->state != BT_CONNECTED)
- return send_conn_param_neg_reply(hdev, handle,
- HCI_ERROR_UNKNOWN_CONN_ID);
- if (hci_check_conn_params(min, max, latency, timeout))
- return send_conn_param_neg_reply(hdev, handle,
- HCI_ERROR_INVALID_LL_PARAMS);
- if (hcon->role == HCI_ROLE_MASTER) {
- struct hci_conn_params *params;
- u8 store_hint;
- hci_dev_lock(hdev);
- params = hci_conn_params_lookup(hdev, &hcon->dst,
- hcon->dst_type);
- if (params) {
- params->conn_min_interval = min;
- params->conn_max_interval = max;
- params->conn_latency = latency;
- params->supervision_timeout = timeout;
- store_hint = 0x01;
- } else{
- store_hint = 0x00;
- }
- hci_dev_unlock(hdev);
- mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
- store_hint, min, max, latency, timeout);
- }
- cp.handle = ev->handle;
- cp.interval_min = ev->interval_min;
- cp.interval_max = ev->interval_max;
- cp.latency = ev->latency;
- cp.timeout = ev->timeout;
- cp.min_ce_len = 0;
- cp.max_ce_len = 0;
- hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
- }
- static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
- struct sk_buff *skb)
- {
- u8 num_reports = skb->data[0];
- void *ptr = &skb->data[1];
- hci_dev_lock(hdev);
- while (num_reports--) {
- struct hci_ev_le_direct_adv_info *ev = ptr;
- process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
- ev->bdaddr_type, &ev->direct_addr,
- ev->direct_addr_type, ev->rssi, NULL, 0);
- ptr += sizeof(*ev);
- }
- hci_dev_unlock(hdev);
- }
- static void hci_le_phy_update_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_le_phy_update_complete *ev = (void *) skb->data;
- struct hci_conn *conn;
- BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- if (!ev->status)
- return;
- hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
- if (!conn)
- goto unlock;
- conn->le_tx_phy = ev->tx_phy;
- conn->le_rx_phy = ev->rx_phy;
- unlock:
- hci_dev_unlock(hdev);
- }
- static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_ev_le_meta *le_ev = (void *) skb->data;
- skb_pull(skb, sizeof(*le_ev));
- switch (le_ev->subevent) {
- case HCI_EV_LE_CONN_COMPLETE:
- hci_le_conn_complete_evt(hdev, skb);
- break;
- case HCI_EV_LE_CONN_UPDATE_COMPLETE:
- hci_le_conn_update_complete_evt(hdev, skb);
- break;
- case HCI_EV_LE_ADVERTISING_REPORT:
- hci_le_adv_report_evt(hdev, skb);
- break;
- case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
- hci_le_remote_feat_complete_evt(hdev, skb);
- break;
- case HCI_EV_LE_LTK_REQ:
- hci_le_ltk_request_evt(hdev, skb);
- break;
- case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
- hci_le_remote_conn_param_req_evt(hdev, skb);
- break;
- case HCI_EV_LE_DIRECT_ADV_REPORT:
- hci_le_direct_adv_report_evt(hdev, skb);
- break;
- case HCI_EV_LE_PHY_UPDATE_COMPLETE:
- hci_le_phy_update_evt(hdev, skb);
- break;
- case HCI_EV_LE_EXT_ADV_REPORT:
- hci_le_ext_adv_report_evt(hdev, skb);
- break;
- case HCI_EV_LE_ENHANCED_CONN_COMPLETE:
- hci_le_enh_conn_complete_evt(hdev, skb);
- break;
- case HCI_EV_LE_EXT_ADV_SET_TERM:
- hci_le_ext_adv_term_evt(hdev, skb);
- break;
- default:
- break;
- }
- }
- static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
- u8 event, struct sk_buff *skb)
- {
- struct hci_ev_cmd_complete *ev;
- struct hci_event_hdr *hdr;
- if (!skb)
- return false;
- if (skb->len < sizeof(*hdr)) {
- bt_dev_err(hdev, "too short HCI event");
- return false;
- }
- hdr = (void *) skb->data;
- skb_pull(skb, HCI_EVENT_HDR_SIZE);
- if (event) {
- if (hdr->evt != event)
- return false;
- return true;
- }
- /* Check if request ended in Command Status - no way to retreive
- * any extra parameters in this case.
- */
- if (hdr->evt == HCI_EV_CMD_STATUS)
- return false;
- if (hdr->evt != HCI_EV_CMD_COMPLETE) {
- bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
- hdr->evt);
- return false;
- }
- if (skb->len < sizeof(*ev)) {
- bt_dev_err(hdev, "too short cmd_complete event");
- return false;
- }
- ev = (void *) skb->data;
- skb_pull(skb, sizeof(*ev));
- if (opcode != __le16_to_cpu(ev->opcode)) {
- BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
- __le16_to_cpu(ev->opcode));
- return false;
- }
- return true;
- }
- void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
- {
- struct hci_event_hdr *hdr = (void *) skb->data;
- hci_req_complete_t req_complete = NULL;
- hci_req_complete_skb_t req_complete_skb = NULL;
- struct sk_buff *orig_skb = NULL;
- u8 status = 0, event = hdr->evt, req_evt = 0;
- u16 opcode = HCI_OP_NOP;
- if (!event) {
- bt_dev_warn(hdev, "Received unexpected HCI Event 00000000");
- goto done;
- }
- if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
- struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
- opcode = __le16_to_cpu(cmd_hdr->opcode);
- hci_req_cmd_complete(hdev, opcode, status, &req_complete,
- &req_complete_skb);
- req_evt = event;
- }
- /* If it looks like we might end up having to call
- * req_complete_skb, store a pristine copy of the skb since the
- * various handlers may modify the original one through
- * skb_pull() calls, etc.
- */
- if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
- event == HCI_EV_CMD_COMPLETE)
- orig_skb = skb_clone(skb, GFP_KERNEL);
- skb_pull(skb, HCI_EVENT_HDR_SIZE);
- switch (event) {
- case HCI_EV_INQUIRY_COMPLETE:
- hci_inquiry_complete_evt(hdev, skb);
- break;
- case HCI_EV_INQUIRY_RESULT:
- hci_inquiry_result_evt(hdev, skb);
- break;
- case HCI_EV_CONN_COMPLETE:
- hci_conn_complete_evt(hdev, skb);
- break;
- case HCI_EV_CONN_REQUEST:
- hci_conn_request_evt(hdev, skb);
- break;
- case HCI_EV_DISCONN_COMPLETE:
- hci_disconn_complete_evt(hdev, skb);
- break;
- case HCI_EV_AUTH_COMPLETE:
- hci_auth_complete_evt(hdev, skb);
- break;
- case HCI_EV_REMOTE_NAME:
- hci_remote_name_evt(hdev, skb);
- break;
- case HCI_EV_ENCRYPT_CHANGE:
- hci_encrypt_change_evt(hdev, skb);
- break;
- case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
- hci_change_link_key_complete_evt(hdev, skb);
- break;
- case HCI_EV_REMOTE_FEATURES:
- hci_remote_features_evt(hdev, skb);
- break;
- case HCI_EV_CMD_COMPLETE:
- hci_cmd_complete_evt(hdev, skb, &opcode, &status,
- &req_complete, &req_complete_skb);
- break;
- case HCI_EV_CMD_STATUS:
- hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
- &req_complete_skb);
- break;
- case HCI_EV_HARDWARE_ERROR:
- hci_hardware_error_evt(hdev, skb);
- break;
- case HCI_EV_ROLE_CHANGE:
- hci_role_change_evt(hdev, skb);
- break;
- case HCI_EV_NUM_COMP_PKTS:
- hci_num_comp_pkts_evt(hdev, skb);
- break;
- case HCI_EV_MODE_CHANGE:
- hci_mode_change_evt(hdev, skb);
- break;
- case HCI_EV_PIN_CODE_REQ:
- hci_pin_code_request_evt(hdev, skb);
- break;
- case HCI_EV_LINK_KEY_REQ:
- hci_link_key_request_evt(hdev, skb);
- break;
- case HCI_EV_LINK_KEY_NOTIFY:
- hci_link_key_notify_evt(hdev, skb);
- break;
- case HCI_EV_CLOCK_OFFSET:
- hci_clock_offset_evt(hdev, skb);
- break;
- case HCI_EV_PKT_TYPE_CHANGE:
- hci_pkt_type_change_evt(hdev, skb);
- break;
- case HCI_EV_PSCAN_REP_MODE:
- hci_pscan_rep_mode_evt(hdev, skb);
- break;
- case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
- hci_inquiry_result_with_rssi_evt(hdev, skb);
- break;
- case HCI_EV_REMOTE_EXT_FEATURES:
- hci_remote_ext_features_evt(hdev, skb);
- break;
- case HCI_EV_SYNC_CONN_COMPLETE:
- hci_sync_conn_complete_evt(hdev, skb);
- break;
- case HCI_EV_EXTENDED_INQUIRY_RESULT:
- hci_extended_inquiry_result_evt(hdev, skb);
- break;
- case HCI_EV_KEY_REFRESH_COMPLETE:
- hci_key_refresh_complete_evt(hdev, skb);
- break;
- case HCI_EV_IO_CAPA_REQUEST:
- hci_io_capa_request_evt(hdev, skb);
- break;
- case HCI_EV_IO_CAPA_REPLY:
- hci_io_capa_reply_evt(hdev, skb);
- break;
- case HCI_EV_USER_CONFIRM_REQUEST:
- hci_user_confirm_request_evt(hdev, skb);
- break;
- case HCI_EV_USER_PASSKEY_REQUEST:
- hci_user_passkey_request_evt(hdev, skb);
- break;
- case HCI_EV_USER_PASSKEY_NOTIFY:
- hci_user_passkey_notify_evt(hdev, skb);
- break;
- case HCI_EV_KEYPRESS_NOTIFY:
- hci_keypress_notify_evt(hdev, skb);
- break;
- case HCI_EV_SIMPLE_PAIR_COMPLETE:
- hci_simple_pair_complete_evt(hdev, skb);
- break;
- case HCI_EV_REMOTE_HOST_FEATURES:
- hci_remote_host_features_evt(hdev, skb);
- break;
- case HCI_EV_LE_META:
- hci_le_meta_evt(hdev, skb);
- break;
- case HCI_EV_REMOTE_OOB_DATA_REQUEST:
- hci_remote_oob_data_request_evt(hdev, skb);
- break;
- #if IS_ENABLED(CONFIG_BT_HS)
- case HCI_EV_CHANNEL_SELECTED:
- hci_chan_selected_evt(hdev, skb);
- break;
- case HCI_EV_PHY_LINK_COMPLETE:
- hci_phy_link_complete_evt(hdev, skb);
- break;
- case HCI_EV_LOGICAL_LINK_COMPLETE:
- hci_loglink_complete_evt(hdev, skb);
- break;
- case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
- hci_disconn_loglink_complete_evt(hdev, skb);
- break;
- case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
- hci_disconn_phylink_complete_evt(hdev, skb);
- break;
- #endif
- case HCI_EV_NUM_COMP_BLOCKS:
- hci_num_comp_blocks_evt(hdev, skb);
- break;
- default:
- BT_DBG("%s event 0x%2.2x", hdev->name, event);
- break;
- }
- if (req_complete) {
- req_complete(hdev, status, opcode);
- } else if (req_complete_skb) {
- if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
- kfree_skb(orig_skb);
- orig_skb = NULL;
- }
- req_complete_skb(hdev, status, opcode, orig_skb);
- }
- done:
- kfree_skb(orig_skb);
- kfree_skb(skb);
- hdev->stat.evt_rx++;
- }