[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/net/bluetooth/hci_event.c b/src/kernel/linux/v4.14/net/bluetooth/hci_event.c
new file mode 100644
index 0000000..587b674
--- /dev/null
+++ b/src/kernel/linux/v4.14/net/bluetooth/hci_event.c
@@ -0,0 +1,5495 @@
+/*
+ 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 *new_status)
+{
+ __u8 status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+ /* It is possible that we receive Inquiry Complete event right
+ * before we receive Inquiry Cancel Command Complete event, in
+ * which case the latter event should have status of Command
+ * Disallowed (0x0c). This should not be treated as error, since
+ * we actually achieve what Inquiry Cancel wants to achieve,
+ * which is to end the last Inquiry session.
+ */
+ if (status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
+ bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
+ status = 0x00;
+ }
+
+ *new_status = 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);
+}
+
+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_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_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_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_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 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 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;
+
+ hci_dev_lock(hdev);
+
+ switch (cp->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_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
+ break;
+ }
+
+ hci_dev_unlock(hdev);
+}
+
+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_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_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_ERR("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)
+ mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
+ conn->dst_type, status);
+
+ hci_dev_unlock(hdev);
+}
+
+static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
+{
+ struct hci_cp_le_create_conn *cp;
+ struct hci_conn *conn;
+
+ 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);
+
+ conn = hci_conn_hash_lookup_le(hdev, &cp->peer_addr,
+ cp->peer_addr_type);
+ if (!conn)
+ goto unlock;
+
+ /* 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 = cp->own_address_type;
+ if (cp->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 = cp->peer_addr_type;
+ bacpy(&conn->resp_addr, &cp->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 (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
+ queue_delayed_work(conn->hdev->workqueue,
+ &conn->le_conn_timeout,
+ conn->conn_timeout);
+
+unlock:
+ 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 || skb->len < num_rsp * sizeof(*info) + 1)
+ 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 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) {
+ 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_ERR("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);
+
+ /* 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_INFO("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_ERR("%s invalid HCI Read Encryption Key Size response",
+ hdev->name);
+ 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;
+
+ /* If we fail to read the encryption key size, assume maximum
+ * (which is the same we do also when this HCI command isn't
+ * supported.
+ */
+ if (rp->status) {
+ BT_ERR("%s failed to read key size for handle %u", hdev->name,
+ handle);
+ conn->enc_key_size = HCI_LINK_KEY_SIZE;
+ } 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);
+
+ 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_ERR("Sending HCI Read Encryption Key Size failed");
+ conn->enc_key_size = HCI_LINK_KEY_SIZE;
+ goto notify;
+ }
+
+ goto unlock;
+ }
+
+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, status);
+ 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_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_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_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;
+
+ 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 (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;
+
+ 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 (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_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
+ return;
+ }
+
+ if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
+ ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
+ 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_ERR("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_ERR("%s unknown dev_type %d", hdev->name, 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_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
+ return;
+ }
+
+ if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
+ ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
+ 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_ERR("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);
+
+ if (skb->len < num_rsp * sizeof(*info) + 1)
+ goto unlock;
+
+ 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);
+
+ if (skb->len < num_rsp * sizeof(*info) + 1)
+ goto unlock;
+
+ 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);
+ }
+ }
+
+unlock:
+ 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 0x1e: /* Invalid LMP Parameters */
+ 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 || skb->len < num_rsp * sizeof(*info) + 1)
+ 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;
+ }
+
+ 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 hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_le_conn_complete *ev = (void *) skb->data;
+ struct hci_conn_params *params;
+ struct hci_conn *conn;
+ struct smp_irk *irk;
+ u8 addr_type;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
+
+ 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, &ev->bdaddr, ev->role);
+ if (!conn) {
+ BT_ERR("No memory for new connection");
+ goto unlock;
+ }
+
+ conn->dst_type = ev->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 = ev->bdaddr_type;
+ bacpy(&conn->resp_addr, &ev->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)
+ bacpy(&conn->resp_addr, &hdev->random_addr);
+ else
+ bacpy(&conn->resp_addr, &hdev->bdaddr);
+
+ conn->init_addr_type = ev->bdaddr_type;
+ bacpy(&conn->init_addr, &ev->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 (ev->status) {
+ hci_le_conn_failed(conn, ev->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 = __le16_to_cpu(ev->handle);
+ conn->state = BT_CONFIG;
+
+ 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_debugfs_create_conn(conn);
+ hci_conn_add_sysfs(conn);
+
+ if (!ev->status) {
+ /* 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, ev->status);
+ }
+ } else {
+ hci_connect_cfm(conn, ev->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_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_ERR_RATELIMITED("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_ERR_RATELIMITED("%s advertising data length corrected",
+ hdev->name);
+ 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;
+
+ rssi = ev->data[ev->length];
+ process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
+ ev->bdaddr_type, NULL, 0, rssi,
+ ev->data, ev->length);
+
+ ptr += sizeof(*ev) + ev->length + 1;
+ }
+
+ 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_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;
+
+ 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_ERR("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_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt);
+ return false;
+ }
+
+ if (skb->len < sizeof(*ev)) {
+ BT_ERR("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++;
+}