| /* |
| 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" |
| #include "msft.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); |
| hci_bdaddr_list_clear(&hdev->le_resolv_list); |
| } |
| |
| static void hci_cc_read_stored_link_key(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_stored_link_key *rp = (void *)skb->data; |
| struct hci_cp_read_stored_link_key *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY); |
| if (!sent) |
| return; |
| |
| if (!rp->status && sent->read_all == 0x01) { |
| hdev->stored_max_keys = rp->max_keys; |
| hdev->stored_num_keys = rp->num_keys; |
| } |
| } |
| |
| static void hci_cc_delete_stored_link_key(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_delete_stored_link_key *rp = (void *)skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (rp->num_keys <= hdev->stored_num_keys) |
| hdev->stored_num_keys -= rp->num_keys; |
| else |
| hdev->stored_num_keys = 0; |
| } |
| |
| static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_set_local_name_complete(hdev, sent, status); |
| else if (!status) |
| memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_name *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (hci_dev_test_flag(hdev, HCI_SETUP) || |
| hci_dev_test_flag(hdev, HCI_CONFIG)) |
| memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH); |
| } |
| |
| static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!status) { |
| __u8 param = *((__u8 *) sent); |
| |
| if (param == AUTH_ENABLED) |
| set_bit(HCI_AUTH, &hdev->flags); |
| else |
| clear_bit(HCI_AUTH, &hdev->flags); |
| } |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_auth_enable_complete(hdev, status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| __u8 param; |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE); |
| if (!sent) |
| return; |
| |
| param = *((__u8 *) sent); |
| |
| if (param) |
| set_bit(HCI_ENCRYPT, &hdev->flags); |
| else |
| clear_bit(HCI_ENCRYPT, &hdev->flags); |
| } |
| |
| static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| __u8 param; |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE); |
| if (!sent) |
| return; |
| |
| param = *((__u8 *) sent); |
| |
| hci_dev_lock(hdev); |
| |
| if (status) { |
| hdev->discov_timeout = 0; |
| goto done; |
| } |
| |
| if (param & SCAN_INQUIRY) |
| set_bit(HCI_ISCAN, &hdev->flags); |
| else |
| clear_bit(HCI_ISCAN, &hdev->flags); |
| |
| if (param & SCAN_PAGE) |
| set_bit(HCI_PSCAN, &hdev->flags); |
| else |
| clear_bit(HCI_PSCAN, &hdev->flags); |
| |
| done: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_class_of_dev *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| memcpy(hdev->dev_class, rp->dev_class, 3); |
| |
| BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name, |
| hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]); |
| } |
| |
| static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (status == 0) |
| memcpy(hdev->dev_class, sent, 3); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_set_class_of_dev_complete(hdev, sent, status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_voice_setting *rp = (void *) skb->data; |
| __u16 setting; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| setting = __le16_to_cpu(rp->voice_setting); |
| |
| if (hdev->voice_setting == setting) |
| return; |
| |
| hdev->voice_setting = setting; |
| |
| BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting); |
| |
| if (hdev->notify) |
| hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); |
| } |
| |
| static void hci_cc_write_voice_setting(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| __u16 setting; |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING); |
| if (!sent) |
| return; |
| |
| setting = get_unaligned_le16(sent); |
| |
| if (hdev->voice_setting == setting) |
| return; |
| |
| hdev->voice_setting = setting; |
| |
| BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting); |
| |
| if (hdev->notify) |
| hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); |
| } |
| |
| static void hci_cc_read_num_supported_iac(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_num_supported_iac *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->num_iac = rp->num_iac; |
| |
| BT_DBG("%s num iac %d", hdev->name, hdev->num_iac); |
| } |
| |
| static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| struct hci_cp_write_ssp_mode *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!status) { |
| if (sent->mode) |
| hdev->features[1][0] |= LMP_HOST_SSP; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_SSP; |
| } |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_ssp_enable_complete(hdev, sent->mode, status); |
| else if (!status) { |
| if (sent->mode) |
| hci_dev_set_flag(hdev, HCI_SSP_ENABLED); |
| else |
| hci_dev_clear_flag(hdev, HCI_SSP_ENABLED); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| u8 status = *((u8 *) skb->data); |
| struct hci_cp_write_sc_support *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!status) { |
| if (sent->support) |
| hdev->features[1][0] |= LMP_HOST_SC; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_SC; |
| } |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT) && !status) { |
| if (sent->support) |
| hci_dev_set_flag(hdev, HCI_SC_ENABLED); |
| else |
| hci_dev_clear_flag(hdev, HCI_SC_ENABLED); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_version *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (hci_dev_test_flag(hdev, HCI_SETUP) || |
| hci_dev_test_flag(hdev, HCI_CONFIG)) { |
| hdev->hci_ver = rp->hci_ver; |
| hdev->hci_rev = __le16_to_cpu(rp->hci_rev); |
| hdev->lmp_ver = rp->lmp_ver; |
| hdev->manufacturer = __le16_to_cpu(rp->manufacturer); |
| hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver); |
| } |
| } |
| |
| static void hci_cc_read_local_commands(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_commands *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (hci_dev_test_flag(hdev, HCI_SETUP) || |
| hci_dev_test_flag(hdev, HCI_CONFIG)) |
| memcpy(hdev->commands, rp->commands, sizeof(hdev->commands)); |
| } |
| |
| static void hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_auth_payload_to *rp = (void *)skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
| if (conn) |
| conn->auth_payload_timeout = __le16_to_cpu(rp->timeout); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_write_auth_payload_to *rp = (void *)skb->data; |
| struct hci_conn *conn; |
| void *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
| if (conn) |
| conn->auth_payload_timeout = get_unaligned_le16(sent + 2); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_local_features(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_features *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| memcpy(hdev->features, rp->features, 8); |
| |
| /* Adjust default settings according to features |
| * supported by device. */ |
| |
| if (hdev->features[0][0] & LMP_3SLOT) |
| hdev->pkt_type |= (HCI_DM3 | HCI_DH3); |
| |
| if (hdev->features[0][0] & LMP_5SLOT) |
| hdev->pkt_type |= (HCI_DM5 | HCI_DH5); |
| |
| if (hdev->features[0][1] & LMP_HV2) { |
| hdev->pkt_type |= (HCI_HV2); |
| hdev->esco_type |= (ESCO_HV2); |
| } |
| |
| if (hdev->features[0][1] & LMP_HV3) { |
| hdev->pkt_type |= (HCI_HV3); |
| hdev->esco_type |= (ESCO_HV3); |
| } |
| |
| if (lmp_esco_capable(hdev)) |
| hdev->esco_type |= (ESCO_EV3); |
| |
| if (hdev->features[0][4] & LMP_EV4) |
| hdev->esco_type |= (ESCO_EV4); |
| |
| if (hdev->features[0][4] & LMP_EV5) |
| hdev->esco_type |= (ESCO_EV5); |
| |
| if (hdev->features[0][5] & LMP_EDR_ESCO_2M) |
| hdev->esco_type |= (ESCO_2EV3); |
| |
| if (hdev->features[0][5] & LMP_EDR_ESCO_3M) |
| hdev->esco_type |= (ESCO_3EV3); |
| |
| if (hdev->features[0][5] & LMP_EDR_3S_ESCO) |
| hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5); |
| } |
| |
| static void hci_cc_read_local_ext_features(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_ext_features *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (hdev->max_page < rp->max_page) |
| hdev->max_page = rp->max_page; |
| |
| if (rp->page < HCI_MAX_PAGES) |
| memcpy(hdev->features[rp->page], rp->features, 8); |
| } |
| |
| static void hci_cc_read_flow_control_mode(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_flow_control_mode *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->flow_ctl_mode = rp->mode; |
| } |
| |
| static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_buffer_size *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu); |
| hdev->sco_mtu = rp->sco_mtu; |
| hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt); |
| hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt); |
| |
| if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) { |
| hdev->sco_mtu = 64; |
| hdev->sco_pkts = 8; |
| } |
| |
| hdev->acl_cnt = hdev->acl_pkts; |
| hdev->sco_cnt = hdev->sco_pkts; |
| |
| BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu, |
| hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts); |
| } |
| |
| static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_bd_addr *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (test_bit(HCI_INIT, &hdev->flags)) |
| bacpy(&hdev->bdaddr, &rp->bdaddr); |
| |
| if (hci_dev_test_flag(hdev, HCI_SETUP)) |
| bacpy(&hdev->setup_addr, &rp->bdaddr); |
| } |
| |
| static void hci_cc_read_local_pairing_opts(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_pairing_opts *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->pairing_opts = rp->pairing_opts; |
| hdev->max_enc_key_size = rp->max_key_size; |
| } |
| } |
| |
| static void hci_cc_read_page_scan_activity(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_page_scan_activity *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (test_bit(HCI_INIT, &hdev->flags)) { |
| hdev->page_scan_interval = __le16_to_cpu(rp->interval); |
| hdev->page_scan_window = __le16_to_cpu(rp->window); |
| } |
| } |
| |
| static void hci_cc_write_page_scan_activity(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| u8 status = *((u8 *) skb->data); |
| struct hci_cp_write_page_scan_activity *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY); |
| if (!sent) |
| return; |
| |
| hdev->page_scan_interval = __le16_to_cpu(sent->interval); |
| hdev->page_scan_window = __le16_to_cpu(sent->window); |
| } |
| |
| static void hci_cc_read_page_scan_type(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_page_scan_type *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (test_bit(HCI_INIT, &hdev->flags)) |
| hdev->page_scan_type = rp->type; |
| } |
| |
| static void hci_cc_write_page_scan_type(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| u8 status = *((u8 *) skb->data); |
| u8 *type; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE); |
| if (type) |
| hdev->page_scan_type = *type; |
| } |
| |
| static void hci_cc_read_data_block_size(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_data_block_size *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->block_mtu = __le16_to_cpu(rp->max_acl_len); |
| hdev->block_len = __le16_to_cpu(rp->block_len); |
| hdev->num_blocks = __le16_to_cpu(rp->num_blocks); |
| |
| hdev->block_cnt = hdev->num_blocks; |
| |
| BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu, |
| hdev->block_cnt, hdev->block_len); |
| } |
| |
| static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_clock *rp = (void *) skb->data; |
| struct hci_cp_read_clock *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (skb->len < sizeof(*rp)) |
| return; |
| |
| if (rp->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK); |
| if (!cp) |
| goto unlock; |
| |
| if (cp->which == 0x00) { |
| hdev->clock = le32_to_cpu(rp->clock); |
| goto unlock; |
| } |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
| if (conn) { |
| conn->clock = le32_to_cpu(rp->clock); |
| conn->clock_accuracy = le16_to_cpu(rp->accuracy); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_local_amp_info(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_amp_info *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->amp_status = rp->amp_status; |
| hdev->amp_total_bw = __le32_to_cpu(rp->total_bw); |
| hdev->amp_max_bw = __le32_to_cpu(rp->max_bw); |
| hdev->amp_min_latency = __le32_to_cpu(rp->min_latency); |
| hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu); |
| hdev->amp_type = rp->amp_type; |
| hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap); |
| hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size); |
| hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to); |
| hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to); |
| } |
| |
| static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->inq_tx_power = rp->tx_power; |
| } |
| |
| static void hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_def_err_data_reporting *rp = (void *)skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->err_data_reporting = rp->err_data_reporting; |
| } |
| |
| static void hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *)skb->data); |
| struct hci_cp_write_def_err_data_reporting *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING); |
| if (!cp) |
| return; |
| |
| hdev->err_data_reporting = cp->err_data_reporting; |
| } |
| |
| static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_pin_code_reply *rp = (void *) skb->data; |
| struct hci_cp_pin_code_reply *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status); |
| |
| if (rp->status) |
| goto unlock; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY); |
| if (!cp) |
| goto unlock; |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); |
| if (conn) |
| conn->pin_length = cp->pin_len; |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr, |
| rp->status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_read_buffer_size(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_buffer_size *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_mtu = __le16_to_cpu(rp->le_mtu); |
| hdev->le_pkts = rp->le_max_pkt; |
| |
| hdev->le_cnt = hdev->le_pkts; |
| |
| BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts); |
| } |
| |
| static void hci_cc_le_read_local_features(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_local_features *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| memcpy(hdev->le_features, rp->features, 8); |
| } |
| |
| static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->adv_tx_power = rp->tx_power; |
| } |
| |
| static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_user_confirm_reply *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0, |
| rp->status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_user_confirm_reply *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr, |
| ACL_LINK, 0, rp->status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_user_confirm_reply *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK, |
| 0, rp->status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_user_confirm_reply *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr, |
| ACL_LINK, 0, rp->status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_local_oob_data(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_oob_data *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| } |
| |
| static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| } |
| |
| static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| bdaddr_t *sent; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| bacpy(&hdev->random_addr, sent); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_default_phy(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| struct hci_cp_le_set_default_phy *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| hdev->le_tx_def_phys = cp->tx_phys; |
| hdev->le_rx_def_phys = cp->rx_phys; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| struct hci_cp_le_set_adv_set_rand_addr *cp; |
| struct adv_info *adv_instance; |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!hdev->cur_adv_instance) { |
| /* Store in hdev for instance 0 (Set adv and Directed advs) */ |
| bacpy(&hdev->random_addr, &cp->bdaddr); |
| } else { |
| adv_instance = hci_find_adv_instance(hdev, |
| hdev->cur_adv_instance); |
| if (adv_instance) |
| bacpy(&adv_instance->random_addr, &cp->bdaddr); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 *sent, status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| /* If we're doing connection initiation as peripheral. Set a |
| * timeout in case something goes wrong. |
| */ |
| if (*sent) { |
| struct hci_conn *conn; |
| |
| hci_dev_set_flag(hdev, HCI_LE_ADV); |
| |
| conn = hci_lookup_le_connect(hdev); |
| if (conn) |
| queue_delayed_work(hdev->workqueue, |
| &conn->le_conn_timeout, |
| conn->conn_timeout); |
| } else { |
| hci_dev_clear_flag(hdev, HCI_LE_ADV); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_ext_adv_enable *cp; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (cp->enable) { |
| struct hci_conn *conn; |
| |
| hci_dev_set_flag(hdev, HCI_LE_ADV); |
| |
| conn = hci_lookup_le_connect(hdev); |
| if (conn) |
| queue_delayed_work(hdev->workqueue, |
| &conn->le_conn_timeout, |
| conn->conn_timeout); |
| } else { |
| hci_dev_clear_flag(hdev, HCI_LE_ADV); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_scan_param *cp; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| hdev->le_scan_type = cp->type; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_ext_scan_params *cp; |
| __u8 status = *((__u8 *) skb->data); |
| struct hci_cp_le_scan_phy_params *phy_param; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS); |
| if (!cp) |
| return; |
| |
| phy_param = (void *)cp->data; |
| |
| hci_dev_lock(hdev); |
| |
| hdev->le_scan_type = phy_param->type; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static bool has_pending_adv_report(struct hci_dev *hdev) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| return bacmp(&d->last_adv_addr, BDADDR_ANY); |
| } |
| |
| static void clear_pending_adv_report(struct hci_dev *hdev) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| bacpy(&d->last_adv_addr, BDADDR_ANY); |
| d->last_adv_data_len = 0; |
| } |
| |
| static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 bdaddr_type, s8 rssi, u32 flags, |
| u8 *data, u8 len) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| if (len > HCI_MAX_AD_LENGTH) |
| return; |
| |
| bacpy(&d->last_adv_addr, bdaddr); |
| d->last_adv_addr_type = bdaddr_type; |
| d->last_adv_rssi = rssi; |
| d->last_adv_flags = flags; |
| memcpy(d->last_adv_data, data, len); |
| d->last_adv_data_len = len; |
| } |
| |
| static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable) |
| { |
| hci_dev_lock(hdev); |
| |
| switch (enable) { |
| case LE_SCAN_ENABLE: |
| hci_dev_set_flag(hdev, HCI_LE_SCAN); |
| if (hdev->le_scan_type == LE_SCAN_ACTIVE) |
| clear_pending_adv_report(hdev); |
| break; |
| |
| case LE_SCAN_DISABLE: |
| /* We do this here instead of when setting DISCOVERY_STOPPED |
| * since the latter would potentially require waiting for |
| * inquiry to stop too. |
| */ |
| if (has_pending_adv_report(hdev)) { |
| struct discovery_state *d = &hdev->discovery; |
| |
| mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK, |
| d->last_adv_addr_type, NULL, |
| d->last_adv_rssi, d->last_adv_flags, |
| d->last_adv_data, |
| d->last_adv_data_len, NULL, 0); |
| } |
| |
| /* Cancel this timer so that we don't try to disable scanning |
| * when it's already disabled. |
| */ |
| cancel_delayed_work(&hdev->le_scan_disable); |
| |
| hci_dev_clear_flag(hdev, HCI_LE_SCAN); |
| |
| /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we |
| * interrupted scanning due to a connect request. Mark |
| * therefore discovery as stopped. If this was not |
| * because of a connect request advertising might have |
| * been disabled because of active scanning, so |
| * re-enable it again if necessary. |
| */ |
| if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED)) |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) && |
| hdev->discovery.state == DISCOVERY_FINDING) |
| hci_req_reenable_advertising(hdev); |
| |
| break; |
| |
| default: |
| bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d", |
| enable); |
| break; |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_scan_enable(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_scan_enable *cp; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE); |
| if (!cp) |
| return; |
| |
| le_set_scan_enable_complete(hdev, cp->enable); |
| } |
| |
| static void hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_ext_scan_enable *cp; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE); |
| if (!cp) |
| return; |
| |
| le_set_scan_enable_complete(hdev, cp->enable); |
| } |
| |
| static void hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_num_supported_adv_sets *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x No of Adv sets %u", hdev->name, rp->status, |
| rp->num_of_sets); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_num_of_adv_sets = rp->num_of_sets; |
| } |
| |
| static void hci_cc_le_read_white_list_size(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_white_list_size *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_white_list_size = rp->size; |
| } |
| |
| static void hci_cc_le_clear_white_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| hci_bdaddr_list_clear(&hdev->le_white_list); |
| } |
| |
| static void hci_cc_le_add_to_white_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_add_to_white_list *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST); |
| if (!sent) |
| return; |
| |
| hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr, |
| sent->bdaddr_type); |
| } |
| |
| static void hci_cc_le_del_from_white_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_del_from_white_list *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST); |
| if (!sent) |
| return; |
| |
| hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr, |
| sent->bdaddr_type); |
| } |
| |
| static void hci_cc_le_read_supported_states(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_supported_states *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| memcpy(hdev->le_states, rp->le_states, 8); |
| } |
| |
| static void hci_cc_le_read_def_data_len(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_def_data_len *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_def_tx_len = le16_to_cpu(rp->tx_len); |
| hdev->le_def_tx_time = le16_to_cpu(rp->tx_time); |
| } |
| |
| static void hci_cc_le_write_def_data_len(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_write_def_data_len *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN); |
| if (!sent) |
| return; |
| |
| hdev->le_def_tx_len = le16_to_cpu(sent->tx_len); |
| hdev->le_def_tx_time = le16_to_cpu(sent->tx_time); |
| } |
| |
| static void hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_add_to_resolv_list *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST); |
| if (!sent) |
| return; |
| |
| hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr, |
| sent->bdaddr_type, sent->peer_irk, |
| sent->local_irk); |
| } |
| |
| static void hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_del_from_resolv_list *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST); |
| if (!sent) |
| return; |
| |
| hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr, |
| sent->bdaddr_type); |
| } |
| |
| static void hci_cc_le_clear_resolv_list(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| hci_bdaddr_list_clear(&hdev->le_resolv_list); |
| } |
| |
| static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_resolv_list_size *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_resolv_list_size = rp->size; |
| } |
| |
| static void hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| __u8 *sent, status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (*sent) |
| hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION); |
| else |
| hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_read_max_data_len(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_le_read_max_data_len *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hdev->le_max_tx_len = le16_to_cpu(rp->tx_len); |
| hdev->le_max_tx_time = le16_to_cpu(rp->tx_time); |
| hdev->le_max_rx_len = le16_to_cpu(rp->rx_len); |
| hdev->le_max_rx_time = le16_to_cpu(rp->rx_time); |
| } |
| |
| static void hci_cc_write_le_host_supported(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_write_le_host_supported *sent; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (sent->le) { |
| hdev->features[1][0] |= LMP_HOST_LE; |
| hci_dev_set_flag(hdev, HCI_LE_ENABLED); |
| } else { |
| hdev->features[1][0] &= ~LMP_HOST_LE; |
| hci_dev_clear_flag(hdev, HCI_LE_ENABLED); |
| hci_dev_clear_flag(hdev, HCI_ADVERTISING); |
| } |
| |
| if (sent->simul) |
| hdev->features[1][0] |= LMP_HOST_LE_BREDR; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_LE_BREDR; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_adv_param *cp; |
| u8 status = *((u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| hdev->adv_addr_type = cp->own_address_type; |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_set_ext_adv_param(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_le_set_ext_adv_params *rp = (void *) skb->data; |
| struct hci_cp_le_set_ext_adv_params *cp; |
| struct adv_info *adv_instance; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| hdev->adv_addr_type = cp->own_addr_type; |
| if (!hdev->cur_adv_instance) { |
| /* Store in hdev for instance 0 */ |
| hdev->adv_tx_power = rp->tx_power; |
| } else { |
| adv_instance = hci_find_adv_instance(hdev, |
| hdev->cur_adv_instance); |
| if (adv_instance) |
| adv_instance->tx_power = rp->tx_power; |
| } |
| /* Update adv data as tx power is known now */ |
| hci_req_update_adv_data(hdev, hdev->cur_adv_instance); |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_read_rssi *rp = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
| if (conn) |
| conn->rssi = rp->rssi; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_cp_read_tx_power *sent; |
| struct hci_rp_read_tx_power *rp = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
| if (!conn) |
| goto unlock; |
| |
| switch (sent->type) { |
| case 0x00: |
| conn->tx_power = rp->tx_power; |
| break; |
| case 0x01: |
| conn->max_tx_power = rp->tx_power; |
| break; |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| u8 status = *((u8 *) skb->data); |
| u8 *mode; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE); |
| if (mode) |
| hdev->ssp_debug_mode = *mode; |
| } |
| |
| static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status) |
| { |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) { |
| hci_conn_check_pending(hdev); |
| return; |
| } |
| |
| set_bit(HCI_INQUIRY, &hdev->flags); |
| } |
| |
| static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_create_conn *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); |
| |
| BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn); |
| |
| if (status) { |
| if (conn && conn->state == BT_CONNECT) { |
| if (status != 0x0c || conn->attempt > 2) { |
| conn->state = BT_CLOSED; |
| hci_connect_cfm(conn, status); |
| hci_conn_del(conn); |
| } else |
| conn->state = BT_CONNECT2; |
| } |
| } else { |
| if (!conn) { |
| conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr, |
| HCI_ROLE_MASTER); |
| if (!conn) |
| bt_dev_err(hdev, "no memory for new connection"); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_add_sco *cp; |
| struct hci_conn *acl, *sco; |
| __u16 handle; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO); |
| if (!cp) |
| return; |
| |
| handle = __le16_to_cpu(cp->handle); |
| |
| BT_DBG("%s handle 0x%4.4x", hdev->name, handle); |
| |
| hci_dev_lock(hdev); |
| |
| acl = hci_conn_hash_lookup_handle(hdev, handle); |
| if (acl) { |
| sco = acl->link; |
| if (sco) { |
| sco->state = BT_CLOSED; |
| |
| hci_connect_cfm(sco, status); |
| hci_conn_del(sco); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_auth_requested *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| if (conn->state == BT_CONFIG) { |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_set_conn_encrypt *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| if (conn->state == BT_CONFIG) { |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static int hci_outgoing_auth_needed(struct hci_dev *hdev, |
| struct hci_conn *conn) |
| { |
| if (conn->state != BT_CONFIG || !conn->out) |
| return 0; |
| |
| if (conn->pending_sec_level == BT_SECURITY_SDP) |
| return 0; |
| |
| /* Only request authentication for SSP connections or non-SSP |
| * devices with sec_level MEDIUM or HIGH or if MITM protection |
| * is requested. |
| */ |
| if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) && |
| conn->pending_sec_level != BT_SECURITY_FIPS && |
| conn->pending_sec_level != BT_SECURITY_HIGH && |
| conn->pending_sec_level != BT_SECURITY_MEDIUM) |
| return 0; |
| |
| return 1; |
| } |
| |
| static int hci_resolve_name(struct hci_dev *hdev, |
| struct inquiry_entry *e) |
| { |
| struct hci_cp_remote_name_req cp; |
| |
| memset(&cp, 0, sizeof(cp)); |
| |
| bacpy(&cp.bdaddr, &e->data.bdaddr); |
| cp.pscan_rep_mode = e->data.pscan_rep_mode; |
| cp.pscan_mode = e->data.pscan_mode; |
| cp.clock_offset = e->data.clock_offset; |
| |
| return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp); |
| } |
| |
| static bool hci_resolve_next_name(struct hci_dev *hdev) |
| { |
| struct discovery_state *discov = &hdev->discovery; |
| struct inquiry_entry *e; |
| |
| if (list_empty(&discov->resolve)) |
| return false; |
| |
| e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED); |
| if (!e) |
| return false; |
| |
| if (hci_resolve_name(hdev, e) == 0) { |
| e->name_state = NAME_PENDING; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn, |
| bdaddr_t *bdaddr, u8 *name, u8 name_len) |
| { |
| struct discovery_state *discov = &hdev->discovery; |
| struct inquiry_entry *e; |
| |
| /* Update the mgmt connected state if necessary. Be careful with |
| * conn objects that exist but are not (yet) connected however. |
| * Only those in BT_CONFIG or BT_CONNECTED states can be |
| * considered connected. |
| */ |
| if (conn && |
| (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) && |
| !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) |
| mgmt_device_connected(hdev, conn, 0, name, name_len); |
| |
| if (discov->state == DISCOVERY_STOPPED) |
| return; |
| |
| if (discov->state == DISCOVERY_STOPPING) |
| goto discov_complete; |
| |
| if (discov->state != DISCOVERY_RESOLVING) |
| return; |
| |
| e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING); |
| /* If the device was not found in a list of found devices names of which |
| * are pending. there is no need to continue resolving a next name as it |
| * will be done upon receiving another Remote Name Request Complete |
| * Event */ |
| if (!e) |
| return; |
| |
| list_del(&e->list); |
| if (name) { |
| e->name_state = NAME_KNOWN; |
| mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, |
| e->data.rssi, name, name_len); |
| } else { |
| e->name_state = NAME_NOT_KNOWN; |
| } |
| |
| if (hci_resolve_next_name(hdev)) |
| return; |
| |
| discov_complete: |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| } |
| |
| static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_remote_name_req *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| /* If successful wait for the name req complete event before |
| * checking for the need to do authentication */ |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0); |
| |
| if (!conn) |
| goto unlock; |
| |
| if (!hci_outgoing_auth_needed(hdev, conn)) |
| goto unlock; |
| |
| if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { |
| struct hci_cp_auth_requested auth_cp; |
| |
| set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); |
| |
| auth_cp.handle = __cpu_to_le16(conn->handle); |
| hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, |
| sizeof(auth_cp), &auth_cp); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_read_remote_features *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| if (conn->state == BT_CONFIG) { |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_read_remote_ext_features *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| if (conn->state == BT_CONFIG) { |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_setup_sync_conn *cp; |
| struct hci_conn *acl, *sco; |
| __u16 handle; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN); |
| if (!cp) |
| return; |
| |
| handle = __le16_to_cpu(cp->handle); |
| |
| BT_DBG("%s handle 0x%4.4x", hdev->name, handle); |
| |
| hci_dev_lock(hdev); |
| |
| acl = hci_conn_hash_lookup_handle(hdev, handle); |
| if (acl) { |
| sco = acl->link; |
| if (sco) { |
| sco->state = BT_CLOSED; |
| |
| hci_connect_cfm(sco, status); |
| hci_conn_del(sco); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_sniff_mode *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_exit_sniff_mode *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_disconnect *cp; |
| struct hci_conn *conn; |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| u8 type = conn->type; |
| |
| mgmt_disconnect_failed(hdev, &conn->dst, conn->type, |
| conn->dst_type, status); |
| |
| /* If the disconnection failed for any reason, the upper layer |
| * does not retry to disconnect in current implementation. |
| * Hence, we need to do some basic cleanup here and re-enable |
| * advertising if necessary. |
| */ |
| hci_conn_del(conn); |
| if (type == LE_LINK) |
| hci_req_reenable_advertising(hdev); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr, |
| u8 peer_addr_type, u8 own_address_type, |
| u8 filter_policy) |
| { |
| struct hci_conn *conn; |
| |
| conn = hci_conn_hash_lookup_le(hdev, peer_addr, |
| peer_addr_type); |
| if (!conn) |
| return; |
| |
| /* When using controller based address resolution, then the new |
| * address types 0x02 and 0x03 are used. These types need to be |
| * converted back into either public address or random address type |
| */ |
| if (use_ll_privacy(hdev) && |
| hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) { |
| switch (own_address_type) { |
| case ADDR_LE_DEV_PUBLIC_RESOLVED: |
| own_address_type = ADDR_LE_DEV_PUBLIC; |
| break; |
| case ADDR_LE_DEV_RANDOM_RESOLVED: |
| own_address_type = ADDR_LE_DEV_RANDOM; |
| break; |
| } |
| } |
| |
| /* Store the initiator and responder address information which |
| * is needed for SMP. These values will not change during the |
| * lifetime of the connection. |
| */ |
| conn->init_addr_type = own_address_type; |
| if (own_address_type == ADDR_LE_DEV_RANDOM) |
| bacpy(&conn->init_addr, &hdev->random_addr); |
| else |
| bacpy(&conn->init_addr, &hdev->bdaddr); |
| |
| conn->resp_addr_type = peer_addr_type; |
| bacpy(&conn->resp_addr, peer_addr); |
| |
| /* We don't want the connection attempt to stick around |
| * indefinitely since LE doesn't have a page timeout concept |
| * like BR/EDR. Set a timer for any connection that doesn't use |
| * the white list for connecting. |
| */ |
| if (filter_policy == HCI_LE_USE_PEER_ADDR) |
| queue_delayed_work(conn->hdev->workqueue, |
| &conn->le_conn_timeout, |
| conn->conn_timeout); |
| } |
| |
| static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_le_create_conn *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| /* All connection failure handling is taken care of by the |
| * hci_le_conn_failed function which is triggered by the HCI |
| * request completion callbacks used for connecting. |
| */ |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type, |
| cp->own_address_type, cp->filter_policy); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_le_ext_create_conn *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| /* All connection failure handling is taken care of by the |
| * hci_le_conn_failed function which is triggered by the HCI |
| * request completion callbacks used for connecting. |
| */ |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type, |
| cp->own_addr_type, cp->filter_policy); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_le_read_remote_features *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| if (conn->state == BT_CONFIG) { |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_le_start_enc *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC); |
| if (!cp) |
| goto unlock; |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (!conn) |
| goto unlock; |
| |
| if (conn->state != BT_CONNECTED) |
| goto unlock; |
| |
| hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); |
| hci_conn_drop(conn); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_switch_role(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_switch_role *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); |
| if (conn) |
| clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| struct discovery_state *discov = &hdev->discovery; |
| struct inquiry_entry *e; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| hci_conn_check_pending(hdev); |
| |
| if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags)) |
| return; |
| |
| smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ |
| wake_up_bit(&hdev->flags, HCI_INQUIRY); |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (discov->state != DISCOVERY_FINDING) |
| goto unlock; |
| |
| if (list_empty(&discov->resolve)) { |
| /* When BR/EDR inquiry is active and no LE scanning is in |
| * progress, then change discovery state to indicate completion. |
| * |
| * When running LE scanning and BR/EDR inquiry simultaneously |
| * and the LE scan already finished, then change the discovery |
| * state to indicate completion. |
| */ |
| if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) || |
| !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| goto unlock; |
| } |
| |
| e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED); |
| if (e && hci_resolve_name(hdev, e) == 0) { |
| e->name_state = NAME_PENDING; |
| hci_discovery_set_state(hdev, DISCOVERY_RESOLVING); |
| } else { |
| /* When BR/EDR inquiry is active and no LE scanning is in |
| * progress, then change discovery state to indicate completion. |
| * |
| * When running LE scanning and BR/EDR inquiry simultaneously |
| * and the LE scan already finished, then change the discovery |
| * state to indicate completion. |
| */ |
| if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) || |
| !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct inquiry_data data; |
| struct inquiry_info *info = (void *) (skb->data + 1); |
| int num_rsp = *((__u8 *) skb->data); |
| |
| BT_DBG("%s num_rsp %d", hdev->name, num_rsp); |
| |
| if (!num_rsp || 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) { |
| /* Connection may not exist if auto-connected. Check the bredr |
| * allowlist to see if this device is allowed to auto connect. |
| * If link is an ACL type, create a connection class |
| * automatically. |
| * |
| * Auto-connect will only occur if the event filter is |
| * programmed with a given address. Right now, event filter is |
| * only used during suspend. |
| */ |
| if (ev->link_type == ACL_LINK && |
| hci_bdaddr_list_lookup_with_flags(&hdev->whitelist, |
| &ev->bdaddr, |
| BDADDR_BREDR)) { |
| conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr, |
| HCI_ROLE_SLAVE); |
| if (!conn) { |
| bt_dev_err(hdev, "no memory for new conn"); |
| goto unlock; |
| } |
| } else { |
| if (ev->link_type != SCO_LINK) |
| goto unlock; |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, |
| &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| conn->type = SCO_LINK; |
| } |
| } |
| |
| if (!ev->status) { |
| conn->handle = __le16_to_cpu(ev->handle); |
| |
| if (conn->type == ACL_LINK) { |
| conn->state = BT_CONFIG; |
| hci_conn_hold(conn); |
| |
| if (!conn->out && !hci_conn_ssp_enabled(conn) && |
| !hci_find_link_key(hdev, &ev->bdaddr)) |
| conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
| else |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| } else |
| conn->state = BT_CONNECTED; |
| |
| hci_debugfs_create_conn(conn); |
| hci_conn_add_sysfs(conn); |
| |
| if (test_bit(HCI_AUTH, &hdev->flags)) |
| set_bit(HCI_CONN_AUTH, &conn->flags); |
| |
| if (test_bit(HCI_ENCRYPT, &hdev->flags)) |
| set_bit(HCI_CONN_ENCRYPT, &conn->flags); |
| |
| /* Get remote features */ |
| if (conn->type == ACL_LINK) { |
| struct hci_cp_read_remote_features cp; |
| cp.handle = ev->handle; |
| hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES, |
| sizeof(cp), &cp); |
| |
| hci_req_update_scan(hdev); |
| } |
| |
| /* Set packet type for incoming connection */ |
| if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) { |
| struct hci_cp_change_conn_ptype cp; |
| cp.handle = ev->handle; |
| cp.pkt_type = cpu_to_le16(conn->pkt_type); |
| hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp), |
| &cp); |
| } |
| } else { |
| conn->state = BT_CLOSED; |
| if (conn->type == ACL_LINK) |
| mgmt_connect_failed(hdev, &conn->dst, conn->type, |
| conn->dst_type, ev->status); |
| } |
| |
| if (conn->type == ACL_LINK) |
| hci_sco_setup(conn, ev->status); |
| |
| if (ev->status) { |
| hci_connect_cfm(conn, ev->status); |
| hci_conn_del(conn); |
| } else if (ev->link_type == SCO_LINK) { |
| switch (conn->setting & SCO_AIRMODE_MASK) { |
| case SCO_AIRMODE_CVSD: |
| if (hdev->notify) |
| hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD); |
| break; |
| } |
| |
| 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_with_flags(&hdev->whitelist, &ev->bdaddr, |
| BDADDR_BREDR)) { |
| hci_reject_conn(hdev, &ev->bdaddr); |
| return; |
| } |
| |
| /* Connection accepted */ |
| |
| hci_dev_lock(hdev); |
| |
| ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); |
| if (ie) |
| memcpy(ie->data.dev_class, ev->dev_class, 3); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, |
| &ev->bdaddr); |
| if (!conn) { |
| conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr, |
| HCI_ROLE_SLAVE); |
| if (!conn) { |
| bt_dev_err(hdev, "no memory for new connection"); |
| hci_dev_unlock(hdev); |
| return; |
| } |
| } |
| |
| memcpy(conn->dev_class, ev->dev_class, 3); |
| |
| hci_dev_unlock(hdev); |
| |
| if (ev->link_type == ACL_LINK || |
| (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) { |
| struct hci_cp_accept_conn_req cp; |
| conn->state = BT_CONNECT; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| |
| if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER)) |
| cp.role = 0x00; /* Become master */ |
| else |
| cp.role = 0x01; /* Remain slave */ |
| |
| hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); |
| } else if (!(flags & HCI_PROTO_DEFER)) { |
| struct hci_cp_accept_sync_conn_req cp; |
| conn->state = BT_CONNECT; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| cp.pkt_type = cpu_to_le16(conn->pkt_type); |
| |
| cp.tx_bandwidth = cpu_to_le32(0x00001f40); |
| cp.rx_bandwidth = cpu_to_le32(0x00001f40); |
| cp.max_latency = cpu_to_le16(0xffff); |
| cp.content_format = cpu_to_le16(hdev->voice_setting); |
| cp.retrans_effort = 0xff; |
| |
| hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp), |
| &cp); |
| } else { |
| conn->state = BT_CONNECT2; |
| hci_connect_cfm(conn, 0); |
| } |
| } |
| |
| static u8 hci_to_mgmt_reason(u8 err) |
| { |
| switch (err) { |
| case HCI_ERROR_CONNECTION_TIMEOUT: |
| return MGMT_DEV_DISCONN_TIMEOUT; |
| case HCI_ERROR_REMOTE_USER_TERM: |
| case HCI_ERROR_REMOTE_LOW_RESOURCES: |
| case HCI_ERROR_REMOTE_POWER_OFF: |
| return MGMT_DEV_DISCONN_REMOTE; |
| case HCI_ERROR_LOCAL_HOST_TERM: |
| return MGMT_DEV_DISCONN_LOCAL_HOST; |
| default: |
| return MGMT_DEV_DISCONN_UNKNOWN; |
| } |
| } |
| |
| static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_disconn_complete *ev = (void *) skb->data; |
| u8 reason; |
| struct hci_conn_params *params; |
| struct hci_conn *conn; |
| bool mgmt_connected; |
| u8 type; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (!conn) |
| goto unlock; |
| |
| if (ev->status) { |
| mgmt_disconnect_failed(hdev, &conn->dst, conn->type, |
| conn->dst_type, ev->status); |
| goto unlock; |
| } |
| |
| conn->state = BT_CLOSED; |
| |
| mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags); |
| |
| if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags)) |
| reason = MGMT_DEV_DISCONN_AUTH_FAILURE; |
| else |
| reason = hci_to_mgmt_reason(ev->reason); |
| |
| mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type, |
| reason, mgmt_connected); |
| |
| if (conn->type == ACL_LINK) { |
| if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags)) |
| hci_remove_link_key(hdev, &conn->dst); |
| |
| hci_req_update_scan(hdev); |
| } |
| |
| params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); |
| if (params) { |
| switch (params->auto_connect) { |
| case HCI_AUTO_CONN_LINK_LOSS: |
| if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT) |
| break; |
| fallthrough; |
| |
| case HCI_AUTO_CONN_DIRECT: |
| case HCI_AUTO_CONN_ALWAYS: |
| list_del_init(¶ms->action); |
| list_add(¶ms->action, &hdev->pend_le_conns); |
| hci_update_background_scan(hdev); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| type = conn->type; |
| |
| hci_disconn_cfm(conn, ev->reason); |
| hci_conn_del(conn); |
| |
| /* The suspend notifier is waiting for all devices to disconnect so |
| * clear the bit from pending tasks and inform the wait queue. |
| */ |
| if (list_empty(&hdev->conn_hash.list) && |
| test_and_clear_bit(SUSPEND_DISCONNECTING, hdev->suspend_tasks)) { |
| wake_up(&hdev->suspend_wait_q); |
| } |
| |
| /* Re-enable advertising if necessary, since it might |
| * have been disabled by the connection. From the |
| * HCI_LE_Set_Advertise_Enable command description in |
| * the core specification (v4.0): |
| * "The Controller shall continue advertising until the Host |
| * issues an LE_Set_Advertise_Enable command with |
| * Advertising_Enable set to 0x00 (Advertising is disabled) |
| * or until a connection is created or until the Advertising |
| * is timed out due to Directed Advertising." |
| */ |
| if (type == LE_LINK) |
| hci_req_reenable_advertising(hdev); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_auth_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (!conn) |
| goto unlock; |
| |
| if (!ev->status) { |
| clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags); |
| |
| if (!hci_conn_ssp_enabled(conn) && |
| test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) { |
| bt_dev_info(hdev, "re-auth of legacy device is not possible."); |
| } else { |
| set_bit(HCI_CONN_AUTH, &conn->flags); |
| conn->sec_level = conn->pending_sec_level; |
| } |
| } else { |
| if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING) |
| set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags); |
| |
| mgmt_auth_failed(conn, ev->status); |
| } |
| |
| clear_bit(HCI_CONN_AUTH_PEND, &conn->flags); |
| clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags); |
| |
| if (conn->state == BT_CONFIG) { |
| if (!ev->status && hci_conn_ssp_enabled(conn)) { |
| struct hci_cp_set_conn_encrypt cp; |
| cp.handle = ev->handle; |
| cp.encrypt = 0x01; |
| hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), |
| &cp); |
| } else { |
| conn->state = BT_CONNECTED; |
| hci_connect_cfm(conn, ev->status); |
| hci_conn_drop(conn); |
| } |
| } else { |
| hci_auth_cfm(conn, ev->status); |
| |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| hci_conn_drop(conn); |
| } |
| |
| if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { |
| if (!ev->status) { |
| struct hci_cp_set_conn_encrypt cp; |
| cp.handle = ev->handle; |
| cp.encrypt = 0x01; |
| hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), |
| &cp); |
| } else { |
| clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); |
| hci_encrypt_cfm(conn, ev->status); |
| } |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_remote_name *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_conn_check_pending(hdev); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
| goto check_auth; |
| |
| if (ev->status == 0) |
| hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name, |
| strnlen(ev->name, HCI_MAX_NAME_LENGTH)); |
| else |
| hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0); |
| |
| check_auth: |
| if (!conn) |
| goto unlock; |
| |
| if (!hci_outgoing_auth_needed(hdev, conn)) |
| goto unlock; |
| |
| if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { |
| struct hci_cp_auth_requested cp; |
| |
| set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); |
| |
| cp.handle = __cpu_to_le16(conn->handle); |
| hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status, |
| u16 opcode, struct sk_buff *skb) |
| { |
| const struct hci_rp_read_enc_key_size *rp; |
| struct hci_conn *conn; |
| u16 handle; |
| |
| BT_DBG("%s status 0x%02x", hdev->name, status); |
| |
| if (!skb || skb->len < sizeof(*rp)) { |
| bt_dev_err(hdev, "invalid read key size response"); |
| return; |
| } |
| |
| rp = (void *)skb->data; |
| handle = le16_to_cpu(rp->handle); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, handle); |
| if (!conn) |
| goto unlock; |
| |
| /* While unexpected, the read_enc_key_size command may fail. The most |
| * secure approach is to then assume the key size is 0 to force a |
| * disconnection. |
| */ |
| if (rp->status) { |
| bt_dev_err(hdev, "failed to read key size for handle %u", |
| handle); |
| conn->enc_key_size = 0; |
| } else { |
| conn->enc_key_size = rp->key_size; |
| } |
| |
| hci_encrypt_cfm(conn, 0); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_encrypt_change *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (!conn) |
| goto unlock; |
| |
| if (!ev->status) { |
| if (ev->encrypt) { |
| /* Encryption implies authentication */ |
| set_bit(HCI_CONN_AUTH, &conn->flags); |
| set_bit(HCI_CONN_ENCRYPT, &conn->flags); |
| conn->sec_level = conn->pending_sec_level; |
| |
| /* P-256 authentication key implies FIPS */ |
| if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256) |
| set_bit(HCI_CONN_FIPS, &conn->flags); |
| |
| if ((conn->type == ACL_LINK && ev->encrypt == 0x02) || |
| conn->type == LE_LINK) |
| set_bit(HCI_CONN_AES_CCM, &conn->flags); |
| } else { |
| clear_bit(HCI_CONN_ENCRYPT, &conn->flags); |
| clear_bit(HCI_CONN_AES_CCM, &conn->flags); |
| } |
| } |
| |
| /* We should disregard the current RPA and generate a new one |
| * whenever the encryption procedure fails. |
| */ |
| if (ev->status && conn->type == LE_LINK) { |
| hci_dev_set_flag(hdev, HCI_RPA_EXPIRED); |
| hci_adv_instances_set_rpa_expired(hdev, true); |
| } |
| |
| clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); |
| |
| /* Check link security requirements are met */ |
| if (!hci_conn_check_link_mode(conn)) |
| ev->status = HCI_ERROR_AUTH_FAILURE; |
| |
| if (ev->status && conn->state == BT_CONNECTED) { |
| if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING) |
| set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags); |
| |
| /* Notify upper layers so they can cleanup before |
| * disconnecting. |
| */ |
| hci_encrypt_cfm(conn, ev->status); |
| hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); |
| hci_conn_drop(conn); |
| goto unlock; |
| } |
| |
| /* Try reading the encryption key size for encrypted ACL links */ |
| if (!ev->status && ev->encrypt && conn->type == ACL_LINK) { |
| struct hci_cp_read_enc_key_size cp; |
| struct hci_request req; |
| |
| /* Only send HCI_Read_Encryption_Key_Size if the |
| * controller really supports it. If it doesn't, assume |
| * the default size (16). |
| */ |
| if (!(hdev->commands[20] & 0x10)) { |
| conn->enc_key_size = HCI_LINK_KEY_SIZE; |
| goto notify; |
| } |
| |
| hci_req_init(&req, hdev); |
| |
| cp.handle = cpu_to_le16(conn->handle); |
| hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp); |
| |
| if (hci_req_run_skb(&req, read_enc_key_size_complete)) { |
| bt_dev_err(hdev, "sending read key size failed"); |
| conn->enc_key_size = HCI_LINK_KEY_SIZE; |
| goto notify; |
| } |
| |
| goto unlock; |
| } |
| |
| /* Set the default Authenticated Payload Timeout after |
| * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B |
| * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be |
| * sent when the link is active and Encryption is enabled, the conn |
| * type can be either LE or ACL and controller must support LMP Ping. |
| * Ensure for AES-CCM encryption as well. |
| */ |
| if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) && |
| test_bit(HCI_CONN_AES_CCM, &conn->flags) && |
| ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) || |
| (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) { |
| struct hci_cp_write_auth_payload_to cp; |
| |
| cp.handle = cpu_to_le16(conn->handle); |
| cp.timeout = cpu_to_le16(hdev->auth_payload_timeout); |
| hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO, |
| sizeof(cp), &cp); |
| } |
| |
| notify: |
| hci_encrypt_cfm(conn, ev->status); |
| |
| 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_AUTH_PAYLOAD_TO: |
| hci_cc_read_auth_payload_timeout(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_AUTH_PAYLOAD_TO: |
| hci_cc_write_auth_payload_timeout(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_VERSION: |
| hci_cc_read_local_version(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_COMMANDS: |
| hci_cc_read_local_commands(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_FEATURES: |
| hci_cc_read_local_features(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_EXT_FEATURES: |
| hci_cc_read_local_ext_features(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_BUFFER_SIZE: |
| hci_cc_read_buffer_size(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_BD_ADDR: |
| hci_cc_read_bd_addr(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_PAIRING_OPTS: |
| hci_cc_read_local_pairing_opts(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_PAGE_SCAN_ACTIVITY: |
| hci_cc_read_page_scan_activity(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY: |
| hci_cc_write_page_scan_activity(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_PAGE_SCAN_TYPE: |
| hci_cc_read_page_scan_type(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_PAGE_SCAN_TYPE: |
| hci_cc_write_page_scan_type(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_DATA_BLOCK_SIZE: |
| hci_cc_read_data_block_size(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_FLOW_CONTROL_MODE: |
| hci_cc_read_flow_control_mode(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_AMP_INFO: |
| hci_cc_read_local_amp_info(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_CLOCK: |
| hci_cc_read_clock(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_INQ_RSP_TX_POWER: |
| hci_cc_read_inq_rsp_tx_power(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_DEF_ERR_DATA_REPORTING: |
| hci_cc_read_def_err_data_reporting(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_DEF_ERR_DATA_REPORTING: |
| hci_cc_write_def_err_data_reporting(hdev, skb); |
| break; |
| |
| case HCI_OP_PIN_CODE_REPLY: |
| hci_cc_pin_code_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_PIN_CODE_NEG_REPLY: |
| hci_cc_pin_code_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_OOB_DATA: |
| hci_cc_read_local_oob_data(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_OOB_EXT_DATA: |
| hci_cc_read_local_oob_ext_data(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_BUFFER_SIZE: |
| hci_cc_le_read_buffer_size(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_LOCAL_FEATURES: |
| hci_cc_le_read_local_features(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_ADV_TX_POWER: |
| hci_cc_le_read_adv_tx_power(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_CONFIRM_REPLY: |
| hci_cc_user_confirm_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_CONFIRM_NEG_REPLY: |
| hci_cc_user_confirm_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_PASSKEY_REPLY: |
| hci_cc_user_passkey_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_PASSKEY_NEG_REPLY: |
| hci_cc_user_passkey_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_RANDOM_ADDR: |
| hci_cc_le_set_random_addr(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_ADV_ENABLE: |
| hci_cc_le_set_adv_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_SCAN_PARAM: |
| hci_cc_le_set_scan_param(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_SCAN_ENABLE: |
| hci_cc_le_set_scan_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_WHITE_LIST_SIZE: |
| hci_cc_le_read_white_list_size(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_CLEAR_WHITE_LIST: |
| hci_cc_le_clear_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_ADD_TO_WHITE_LIST: |
| hci_cc_le_add_to_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_DEL_FROM_WHITE_LIST: |
| hci_cc_le_del_from_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_SUPPORTED_STATES: |
| hci_cc_le_read_supported_states(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_DEF_DATA_LEN: |
| hci_cc_le_read_def_data_len(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_WRITE_DEF_DATA_LEN: |
| hci_cc_le_write_def_data_len(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_ADD_TO_RESOLV_LIST: |
| hci_cc_le_add_to_resolv_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_DEL_FROM_RESOLV_LIST: |
| hci_cc_le_del_from_resolv_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_CLEAR_RESOLV_LIST: |
| hci_cc_le_clear_resolv_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_RESOLV_LIST_SIZE: |
| hci_cc_le_read_resolv_list_size(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_ADDR_RESOLV_ENABLE: |
| hci_cc_le_set_addr_resolution_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_MAX_DATA_LEN: |
| hci_cc_le_read_max_data_len(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_LE_HOST_SUPPORTED: |
| hci_cc_write_le_host_supported(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_ADV_PARAM: |
| hci_cc_set_adv_param(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_RSSI: |
| hci_cc_read_rssi(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_TX_POWER: |
| hci_cc_read_tx_power(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_SSP_DEBUG_MODE: |
| hci_cc_write_ssp_debug_mode(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_EXT_SCAN_PARAMS: |
| hci_cc_le_set_ext_scan_param(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_EXT_SCAN_ENABLE: |
| hci_cc_le_set_ext_scan_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_DEFAULT_PHY: |
| hci_cc_le_set_default_phy(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS: |
| hci_cc_le_read_num_adv_sets(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_EXT_ADV_PARAMS: |
| hci_cc_set_ext_adv_param(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_EXT_ADV_ENABLE: |
| hci_cc_le_set_ext_adv_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_ADV_SET_RAND_ADDR: |
| hci_cc_le_set_adv_set_random_addr(hdev, skb); |
| break; |
| |
| default: |
| BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode); |
| break; |
| } |
| |
| if (*opcode != HCI_OP_NOP) |
| cancel_delayed_work(&hdev->cmd_timer); |
| |
| if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) |
| atomic_set(&hdev->cmd_cnt, 1); |
| |
| hci_req_cmd_complete(hdev, *opcode, *status, req_complete, |
| req_complete_skb); |
| |
| if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) { |
| bt_dev_err(hdev, |
| "unexpected event for opcode 0x%4.4x", *opcode); |
| return; |
| } |
| |
| if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q)) |
| queue_work(hdev->workqueue, &hdev->cmd_work); |
| } |
| |
| static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb, |
| u16 *opcode, u8 *status, |
| hci_req_complete_t *req_complete, |
| hci_req_complete_skb_t *req_complete_skb) |
| { |
| struct hci_ev_cmd_status *ev = (void *) skb->data; |
| |
| skb_pull(skb, sizeof(*ev)); |
| |
| *opcode = __le16_to_cpu(ev->opcode); |
| *status = ev->status; |
| |
| switch (*opcode) { |
| case HCI_OP_INQUIRY: |
| hci_cs_inquiry(hdev, ev->status); |
| break; |
| |
| case HCI_OP_CREATE_CONN: |
| hci_cs_create_conn(hdev, ev->status); |
| break; |
| |
| case HCI_OP_DISCONNECT: |
| hci_cs_disconnect(hdev, ev->status); |
| break; |
| |
| case HCI_OP_ADD_SCO: |
| hci_cs_add_sco(hdev, ev->status); |
| break; |
| |
| case HCI_OP_AUTH_REQUESTED: |
| hci_cs_auth_requested(hdev, ev->status); |
| break; |
| |
| case HCI_OP_SET_CONN_ENCRYPT: |
| hci_cs_set_conn_encrypt(hdev, ev->status); |
| break; |
| |
| case HCI_OP_REMOTE_NAME_REQ: |
| hci_cs_remote_name_req(hdev, ev->status); |
| break; |
| |
| case HCI_OP_READ_REMOTE_FEATURES: |
| hci_cs_read_remote_features(hdev, ev->status); |
| break; |
| |
| case HCI_OP_READ_REMOTE_EXT_FEATURES: |
| hci_cs_read_remote_ext_features(hdev, ev->status); |
| break; |
| |
| case HCI_OP_SETUP_SYNC_CONN: |
| hci_cs_setup_sync_conn(hdev, ev->status); |
| break; |
| |
| case HCI_OP_SNIFF_MODE: |
| hci_cs_sniff_mode(hdev, ev->status); |
| break; |
| |
| case HCI_OP_EXIT_SNIFF_MODE: |
| hci_cs_exit_sniff_mode(hdev, ev->status); |
| break; |
| |
| case HCI_OP_SWITCH_ROLE: |
| hci_cs_switch_role(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_CREATE_CONN: |
| hci_cs_le_create_conn(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_READ_REMOTE_FEATURES: |
| hci_cs_le_read_remote_features(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_START_ENC: |
| hci_cs_le_start_enc(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_EXT_CREATE_CONN: |
| hci_cs_le_ext_create_conn(hdev, ev->status); |
| break; |
| |
| default: |
| BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode); |
| break; |
| } |
| |
| if (*opcode != HCI_OP_NOP) |
| cancel_delayed_work(&hdev->cmd_timer); |
| |
| if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) |
| atomic_set(&hdev->cmd_cnt, 1); |
| |
| /* Indicate request completion if the command failed. Also, if |
| * we're not waiting for a special event and we get a success |
| * command status we should try to flag the request as completed |
| * (since for this kind of commands there will not be a command |
| * complete event). |
| */ |
| if (ev->status || |
| (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event)) |
| hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete, |
| req_complete_skb); |
| |
| if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) { |
| bt_dev_err(hdev, |
| "unexpected event for opcode 0x%4.4x", *opcode); |
| return; |
| } |
| |
| if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q)) |
| queue_work(hdev->workqueue, &hdev->cmd_work); |
| } |
| |
| static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_hardware_error *ev = (void *) skb->data; |
| |
| hdev->hw_error_code = ev->code; |
| |
| queue_work(hdev->req_workqueue, &hdev->error_reset); |
| } |
| |
| static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_role_change *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (conn) { |
| if (!ev->status) |
| conn->role = ev->role; |
| |
| clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags); |
| |
| hci_role_switch_cfm(conn, ev->status, ev->role); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_num_comp_pkts *ev = (void *) skb->data; |
| int i; |
| |
| if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) { |
| bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode); |
| return; |
| } |
| |
| if (skb->len < sizeof(*ev) || |
| skb->len < struct_size(ev, handles, ev->num_hndl)) { |
| BT_DBG("%s bad parameters", hdev->name); |
| return; |
| } |
| |
| BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl); |
| |
| for (i = 0; i < ev->num_hndl; i++) { |
| struct hci_comp_pkts_info *info = &ev->handles[i]; |
| struct hci_conn *conn; |
| __u16 handle, count; |
| |
| handle = __le16_to_cpu(info->handle); |
| count = __le16_to_cpu(info->count); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, handle); |
| if (!conn) |
| continue; |
| |
| conn->sent -= count; |
| |
| switch (conn->type) { |
| case ACL_LINK: |
| hdev->acl_cnt += count; |
| if (hdev->acl_cnt > hdev->acl_pkts) |
| hdev->acl_cnt = hdev->acl_pkts; |
| break; |
| |
| case LE_LINK: |
| if (hdev->le_pkts) { |
| hdev->le_cnt += count; |
| if (hdev->le_cnt > hdev->le_pkts) |
| hdev->le_cnt = hdev->le_pkts; |
| } else { |
| hdev->acl_cnt += count; |
| if (hdev->acl_cnt > hdev->acl_pkts) |
| hdev->acl_cnt = hdev->acl_pkts; |
| } |
| break; |
| |
| case SCO_LINK: |
| hdev->sco_cnt += count; |
| if (hdev->sco_cnt > hdev->sco_pkts) |
| hdev->sco_cnt = hdev->sco_pkts; |
| break; |
| |
| default: |
| bt_dev_err(hdev, "unknown type %d conn %p", |
| conn->type, conn); |
| break; |
| } |
| } |
| |
| queue_work(hdev->workqueue, &hdev->tx_work); |
| } |
| |
| static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev, |
| __u16 handle) |
| { |
| struct hci_chan *chan; |
| |
| switch (hdev->dev_type) { |
| case HCI_PRIMARY: |
| return hci_conn_hash_lookup_handle(hdev, handle); |
| case HCI_AMP: |
| chan = hci_chan_lookup_handle(hdev, handle); |
| if (chan) |
| return chan->conn; |
| break; |
| default: |
| bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type); |
| break; |
| } |
| |
| return NULL; |
| } |
| |
| static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_num_comp_blocks *ev = (void *) skb->data; |
| int i; |
| |
| if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) { |
| bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode); |
| return; |
| } |
| |
| if (skb->len < sizeof(*ev) || |
| skb->len < struct_size(ev, handles, ev->num_hndl)) { |
| BT_DBG("%s bad parameters", hdev->name); |
| return; |
| } |
| |
| BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks, |
| ev->num_hndl); |
| |
| for (i = 0; i < ev->num_hndl; i++) { |
| struct hci_comp_blocks_info *info = &ev->handles[i]; |
| struct hci_conn *conn = NULL; |
| __u16 handle, block_count; |
| |
| handle = __le16_to_cpu(info->handle); |
| block_count = __le16_to_cpu(info->blocks); |
| |
| conn = __hci_conn_lookup_handle(hdev, handle); |
| if (!conn) |
| continue; |
| |
| conn->sent -= block_count; |
| |
| switch (conn->type) { |
| case ACL_LINK: |
| case AMP_LINK: |
| hdev->block_cnt += block_count; |
| if (hdev->block_cnt > hdev->num_blocks) |
| hdev->block_cnt = hdev->num_blocks; |
| break; |
| |
| default: |
| bt_dev_err(hdev, "unknown type %d conn %p", |
| conn->type, conn); |
| break; |
| } |
| } |
| |
| queue_work(hdev->workqueue, &hdev->tx_work); |
| } |
| |
| static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_mode_change *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn) { |
| conn->mode = ev->mode; |
| |
| if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, |
| &conn->flags)) { |
| if (conn->mode == HCI_CM_ACTIVE) |
| set_bit(HCI_CONN_POWER_SAVE, &conn->flags); |
| else |
| clear_bit(HCI_CONN_POWER_SAVE, &conn->flags); |
| } |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, ev->status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_pin_code_req *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| if (conn->state == BT_CONNECTED) { |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
| hci_conn_drop(conn); |
| } |
| |
| if (!hci_dev_test_flag(hdev, HCI_BONDABLE) && |
| !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) { |
| hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, |
| sizeof(ev->bdaddr), &ev->bdaddr); |
| } else if (hci_dev_test_flag(hdev, HCI_MGMT)) { |
| u8 secure; |
| |
| if (conn->pending_sec_level == BT_SECURITY_HIGH) |
| secure = 1; |
| else |
| secure = 0; |
| |
| mgmt_pin_code_request(hdev, &ev->bdaddr, secure); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len) |
| { |
| if (key_type == HCI_LK_CHANGED_COMBINATION) |
| return; |
| |
| conn->pin_length = pin_len; |
| conn->key_type = key_type; |
| |
| switch (key_type) { |
| case HCI_LK_LOCAL_UNIT: |
| case HCI_LK_REMOTE_UNIT: |
| case HCI_LK_DEBUG_COMBINATION: |
| return; |
| case HCI_LK_COMBINATION: |
| if (pin_len == 16) |
| conn->pending_sec_level = BT_SECURITY_HIGH; |
| else |
| conn->pending_sec_level = BT_SECURITY_MEDIUM; |
| break; |
| case HCI_LK_UNAUTH_COMBINATION_P192: |
| case HCI_LK_UNAUTH_COMBINATION_P256: |
| conn->pending_sec_level = BT_SECURITY_MEDIUM; |
| break; |
| case HCI_LK_AUTH_COMBINATION_P192: |
| conn->pending_sec_level = BT_SECURITY_HIGH; |
| break; |
| case HCI_LK_AUTH_COMBINATION_P256: |
| conn->pending_sec_level = BT_SECURITY_FIPS; |
| break; |
| } |
| } |
| |
| static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_link_key_req *ev = (void *) skb->data; |
| struct hci_cp_link_key_reply cp; |
| struct hci_conn *conn; |
| struct link_key *key; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| key = hci_find_link_key(hdev, &ev->bdaddr); |
| if (!key) { |
| BT_DBG("%s link key not found for %pMR", hdev->name, |
| &ev->bdaddr); |
| goto not_found; |
| } |
| |
| BT_DBG("%s found key type %u for %pMR", hdev->name, key->type, |
| &ev->bdaddr); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (conn) { |
| clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags); |
| |
| if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 || |
| key->type == HCI_LK_UNAUTH_COMBINATION_P256) && |
| conn->auth_type != 0xff && (conn->auth_type & 0x01)) { |
| BT_DBG("%s ignoring unauthenticated key", hdev->name); |
| goto not_found; |
| } |
| |
| if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 && |
| (conn->pending_sec_level == BT_SECURITY_HIGH || |
| conn->pending_sec_level == BT_SECURITY_FIPS)) { |
| BT_DBG("%s ignoring key unauthenticated for high security", |
| hdev->name); |
| goto not_found; |
| } |
| |
| conn_set_key(conn, key->type, key->pin_len); |
| } |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE); |
| |
| hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp); |
| |
| hci_dev_unlock(hdev); |
| |
| return; |
| |
| not_found: |
| hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr); |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_link_key_notify *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| struct link_key *key; |
| bool persistent; |
| u8 pin_len = 0; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| hci_conn_drop(conn); |
| |
| set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags); |
| conn_set_key(conn, ev->key_type, conn->pin_length); |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
| goto unlock; |
| |
| key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key, |
| ev->key_type, pin_len, &persistent); |
| if (!key) |
| goto unlock; |
| |
| /* Update connection information since adding the key will have |
| * fixed up the type in the case of changed combination keys. |
| */ |
| if (ev->key_type == HCI_LK_CHANGED_COMBINATION) |
| conn_set_key(conn, key->type, key->pin_len); |
| |
| mgmt_new_link_key(hdev, key, persistent); |
| |
| /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag |
| * is set. If it's not set simply remove the key from the kernel |
| * list (we've still notified user space about it but with |
| * store_hint being 0). |
| */ |
| if (key->type == HCI_LK_DEBUG_COMBINATION && |
| !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) { |
| list_del_rcu(&key->list); |
| kfree_rcu(key, rcu); |
| goto unlock; |
| } |
| |
| if (persistent) |
| clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags); |
| else |
| set_bit(HCI_CONN_FLUSH_KEY, &conn->flags); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_clock_offset *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn && !ev->status) { |
| struct inquiry_entry *ie; |
| |
| ie = hci_inquiry_cache_lookup(hdev, &conn->dst); |
| if (ie) { |
| ie->data.clock_offset = ev->clock_offset; |
| ie->timestamp = jiffies; |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_pkt_type_change *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn && !ev->status) |
| conn->pkt_type = __le16_to_cpu(ev->pkt_type); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_pscan_rep_mode *ev = (void *) skb->data; |
| struct inquiry_entry *ie; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); |
| if (ie) { |
| ie->data.pscan_rep_mode = ev->pscan_rep_mode; |
| ie->timestamp = jiffies; |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct inquiry_data data; |
| int num_rsp = *((__u8 *) skb->data); |
| |
| BT_DBG("%s num_rsp %d", hdev->name, num_rsp); |
| |
| if (!num_rsp) |
| return; |
| |
| if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) { |
| struct inquiry_info_with_rssi_and_pscan_mode *info; |
| info = (void *) (skb->data + 1); |
| |
| 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: |
| /* The synchronous connection complete event should only be |
| * sent once per new connection. Receiving a successful |
| * complete event when the connection status is already |
| * BT_CONNECTED means that the device is misbehaving and sent |
| * multiple complete event packets for the same new connection. |
| * |
| * Registering the device more than once can corrupt kernel |
| * memory, hence upon detecting this invalid event, we report |
| * an error and ignore the packet. |
| */ |
| if (conn->state == BT_CONNECTED) { |
| bt_dev_err(hdev, "Ignoring connect complete event for existing connection"); |
| goto unlock; |
| } |
| |
| 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; |
| } |
| fallthrough; |
| |
| default: |
| conn->state = BT_CLOSED; |
| break; |
| } |
| |
| bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode); |
| |
| switch (ev->air_mode) { |
| case 0x02: |
| if (hdev->notify) |
| hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD); |
| break; |
| case 0x03: |
| if (hdev->notify) |
| hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP); |
| 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; |
| } |
| |
| /* If there already exists link key in local host, leave the |
| * decision to user space since the remote device could be |
| * legitimate or malicious. |
| */ |
| if (hci_find_link_key(hdev, &ev->bdaddr)) { |
| bt_dev_dbg(hdev, "Local host already has link key"); |
| confirm_hint = 1; |
| goto confirm; |
| } |
| |
| BT_DBG("Auto-accept of user confirmation with %ums delay", |
| hdev->auto_accept_delay); |
| |
| if (hdev->auto_accept_delay > 0) { |
| int delay = msecs_to_jiffies(hdev->auto_accept_delay); |
| queue_delayed_work(conn->hdev->workqueue, |
| &conn->auto_accept_work, delay); |
| goto unlock; |
| } |
| |
| hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, |
| sizeof(ev->bdaddr), &ev->bdaddr); |
| goto unlock; |
| } |
| |
| confirm: |
| mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, |
| le32_to_cpu(ev->passkey), confirm_hint); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_user_passkey_request_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_user_passkey_req *ev = (void *) skb->data; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0); |
| } |
| |
| static void hci_user_passkey_notify_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_user_passkey_notify *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| return; |
| |
| conn->passkey_notify = __le32_to_cpu(ev->passkey); |
| conn->passkey_entered = 0; |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_passkey_notify(hdev, &conn->dst, conn->type, |
| conn->dst_type, conn->passkey_notify, |
| conn->passkey_entered); |
| } |
| |
| static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_keypress_notify *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| return; |
| |
| switch (ev->type) { |
| case HCI_KEYPRESS_STARTED: |
| conn->passkey_entered = 0; |
| return; |
| |
| case HCI_KEYPRESS_ENTERED: |
| conn->passkey_entered++; |
| break; |
| |
| case HCI_KEYPRESS_ERASED: |
| conn->passkey_entered--; |
| break; |
| |
| case HCI_KEYPRESS_CLEARED: |
| conn->passkey_entered = 0; |
| break; |
| |
| case HCI_KEYPRESS_COMPLETED: |
| return; |
| } |
| |
| if (hci_dev_test_flag(hdev, HCI_MGMT)) |
| mgmt_user_passkey_notify(hdev, &conn->dst, conn->type, |
| conn->dst_type, conn->passkey_notify, |
| conn->passkey_entered); |
| } |
| |
| static void hci_simple_pair_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_simple_pair_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| /* Reset the authentication requirement to unknown */ |
| conn->remote_auth = 0xff; |
| |
| /* To avoid duplicate auth_failed events to user space we check |
| * the HCI_CONN_AUTH_PEND flag which will be set if we |
| * initiated the authentication. A traditional auth_complete |
| * event gets always produced as initiator and is also mapped to |
| * the mgmt_auth_failed event */ |
| if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status) |
| mgmt_auth_failed(conn, ev->status); |
| |
| hci_conn_drop(conn); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_remote_host_features_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_remote_host_features *ev = (void *) skb->data; |
| struct inquiry_entry *ie; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (conn) |
| memcpy(conn->features[1], ev->features, 8); |
| |
| ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr); |
| if (ie) |
| ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_remote_oob_data_request *ev = (void *) skb->data; |
| struct oob_data *data; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
| goto unlock; |
| |
| data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR); |
| if (!data) { |
| struct hci_cp_remote_oob_data_neg_reply cp; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, |
| sizeof(cp), &cp); |
| goto unlock; |
| } |
| |
| if (bredr_sc_enabled(hdev)) { |
| struct hci_cp_remote_oob_ext_data_reply cp; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) { |
| memset(cp.hash192, 0, sizeof(cp.hash192)); |
| memset(cp.rand192, 0, sizeof(cp.rand192)); |
| } else { |
| memcpy(cp.hash192, data->hash192, sizeof(cp.hash192)); |
| memcpy(cp.rand192, data->rand192, sizeof(cp.rand192)); |
| } |
| memcpy(cp.hash256, data->hash256, sizeof(cp.hash256)); |
| memcpy(cp.rand256, data->rand256, sizeof(cp.rand256)); |
| |
| hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY, |
| sizeof(cp), &cp); |
| } else { |
| struct hci_cp_remote_oob_data_reply cp; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| memcpy(cp.hash, data->hash192, sizeof(cp.hash)); |
| memcpy(cp.rand, data->rand192, sizeof(cp.rand)); |
| |
| hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, |
| sizeof(cp), &cp); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| #if IS_ENABLED(CONFIG_BT_HS) |
| static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_channel_selected *ev = (void *)skb->data; |
| struct hci_conn *hcon; |
| |
| BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle); |
| |
| skb_pull(skb, sizeof(*ev)); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (!hcon) |
| return; |
| |
| amp_read_loc_assoc_final_data(hdev, hcon); |
| } |
| |
| static void hci_phy_link_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_phy_link_complete *ev = (void *) skb->data; |
| struct hci_conn *hcon, *bredr_hcon; |
| |
| BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle, |
| ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (!hcon) { |
| hci_dev_unlock(hdev); |
| return; |
| } |
| |
| if (!hcon->amp_mgr) { |
| 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); |
| hchan->amp = true; |
| |
| 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 || !hchan->amp) |
| goto unlock; |
| |
| amp_destroy_logical_link(hchan, ev->reason); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data; |
| struct hci_conn *hcon; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| if (ev->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (hcon) { |
| hcon->state = BT_CLOSED; |
| hci_conn_del(hcon); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| #endif |
| |
| static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr, |
| u8 bdaddr_type, bdaddr_t *local_rpa) |
| { |
| if (conn->out) { |
| conn->dst_type = bdaddr_type; |
| conn->resp_addr_type = bdaddr_type; |
| bacpy(&conn->resp_addr, bdaddr); |
| |
| /* Check if the controller has set a Local RPA then it must be |
| * used instead or hdev->rpa. |
| */ |
| if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) { |
| conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
| bacpy(&conn->init_addr, local_rpa); |
| } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) { |
| conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
| bacpy(&conn->init_addr, &conn->hdev->rpa); |
| } else { |
| hci_copy_identity_address(conn->hdev, &conn->init_addr, |
| &conn->init_addr_type); |
| } |
| } else { |
| conn->resp_addr_type = conn->hdev->adv_addr_type; |
| /* Check if the controller has set a Local RPA then it must be |
| * used instead or hdev->rpa. |
| */ |
| if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) { |
| conn->resp_addr_type = ADDR_LE_DEV_RANDOM; |
| bacpy(&conn->resp_addr, local_rpa); |
| } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) { |
| /* In case of ext adv, resp_addr will be updated in |
| * Adv Terminated event. |
| */ |
| if (!ext_adv_capable(conn->hdev)) |
| bacpy(&conn->resp_addr, |
| &conn->hdev->random_addr); |
| } else { |
| bacpy(&conn->resp_addr, &conn->hdev->bdaddr); |
| } |
| |
| conn->init_addr_type = bdaddr_type; |
| bacpy(&conn->init_addr, bdaddr); |
| |
| /* For incoming connections, set the default minimum |
| * and maximum connection interval. They will be used |
| * to check if the parameters are in range and if not |
| * trigger the connection update procedure. |
| */ |
| conn->le_conn_min_interval = conn->hdev->le_conn_min_interval; |
| conn->le_conn_max_interval = conn->hdev->le_conn_max_interval; |
| } |
| } |
| |
| static void le_conn_complete_evt(struct hci_dev *hdev, u8 status, |
| bdaddr_t *bdaddr, u8 bdaddr_type, |
| bdaddr_t *local_rpa, u8 role, u16 handle, |
| u16 interval, u16 latency, |
| u16 supervision_timeout) |
| { |
| struct hci_conn_params *params; |
| struct hci_conn *conn; |
| struct smp_irk *irk; |
| u8 addr_type; |
| |
| hci_dev_lock(hdev); |
| |
| /* All controllers implicitly stop advertising in the event of a |
| * connection, so ensure that the state bit is cleared. |
| */ |
| hci_dev_clear_flag(hdev, HCI_LE_ADV); |
| |
| conn = hci_lookup_le_connect(hdev); |
| if (!conn) { |
| conn = hci_conn_add(hdev, LE_LINK, bdaddr, role); |
| if (!conn) { |
| bt_dev_err(hdev, "no memory for new connection"); |
| goto unlock; |
| } |
| |
| conn->dst_type = bdaddr_type; |
| |
| /* If we didn't have a hci_conn object previously |
| * but we're in master role this must be something |
| * initiated using a white list. Since white list based |
| * connections are not "first class citizens" we don't |
| * have full tracking of them. Therefore, we go ahead |
| * with a "best effort" approach of determining the |
| * initiator address based on the HCI_PRIVACY flag. |
| */ |
| if (conn->out) { |
| conn->resp_addr_type = bdaddr_type; |
| bacpy(&conn->resp_addr, bdaddr); |
| if (hci_dev_test_flag(hdev, HCI_PRIVACY)) { |
| conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
| bacpy(&conn->init_addr, &hdev->rpa); |
| } else { |
| hci_copy_identity_address(hdev, |
| &conn->init_addr, |
| &conn->init_addr_type); |
| } |
| } |
| } else { |
| cancel_delayed_work(&conn->le_conn_timeout); |
| } |
| |
| le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa); |
| |
| /* Lookup the identity address from the stored connection |
| * address and address type. |
| * |
| * When establishing connections to an identity address, the |
| * connection procedure will store the resolvable random |
| * address first. Now if it can be converted back into the |
| * identity address, start using the identity address from |
| * now on. |
| */ |
| irk = hci_get_irk(hdev, &conn->dst, conn->dst_type); |
| if (irk) { |
| bacpy(&conn->dst, &irk->bdaddr); |
| conn->dst_type = irk->addr_type; |
| } |
| |
| if (status) { |
| hci_le_conn_failed(conn, status); |
| goto unlock; |
| } |
| |
| if (conn->dst_type == ADDR_LE_DEV_PUBLIC) |
| addr_type = BDADDR_LE_PUBLIC; |
| else |
| addr_type = BDADDR_LE_RANDOM; |
| |
| /* Drop the connection if the device is blocked */ |
| if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) { |
| hci_conn_drop(conn); |
| goto unlock; |
| } |
| |
| if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) |
| mgmt_device_connected(hdev, conn, 0, NULL, 0); |
| |
| conn->sec_level = BT_SECURITY_LOW; |
| conn->handle = handle; |
| conn->state = BT_CONFIG; |
| |
| conn->le_conn_interval = interval; |
| conn->le_conn_latency = latency; |
| conn->le_supv_timeout = supervision_timeout; |
| |
| hci_debugfs_create_conn(conn); |
| hci_conn_add_sysfs(conn); |
| |
| /* The remote features procedure is defined for master |
| * role only. So only in case of an initiated connection |
| * request the remote features. |
| * |
| * If the local controller supports slave-initiated features |
| * exchange, then requesting the remote features in slave |
| * role is possible. Otherwise just transition into the |
| * connected state without requesting the remote features. |
| */ |
| if (conn->out || |
| (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) { |
| struct hci_cp_le_read_remote_features cp; |
| |
| cp.handle = __cpu_to_le16(conn->handle); |
| |
| hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES, |
| sizeof(cp), &cp); |
| |
| hci_conn_hold(conn); |
| } else { |
| conn->state = BT_CONNECTED; |
| hci_connect_cfm(conn, status); |
| } |
| |
| params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst, |
| conn->dst_type); |
| if (params) { |
| list_del_init(¶ms->action); |
| if (params->conn) { |
| hci_conn_drop(params->conn); |
| hci_conn_put(params->conn); |
| params->conn = NULL; |
| } |
| } |
| |
| unlock: |
| hci_update_background_scan(hdev); |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_le_conn_complete *ev = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type, |
| NULL, ev->role, le16_to_cpu(ev->handle), |
| le16_to_cpu(ev->interval), |
| le16_to_cpu(ev->latency), |
| le16_to_cpu(ev->supervision_timeout)); |
| } |
| |
| static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_le_enh_conn_complete *ev = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type, |
| &ev->local_rpa, ev->role, le16_to_cpu(ev->handle), |
| le16_to_cpu(ev->interval), |
| le16_to_cpu(ev->latency), |
| le16_to_cpu(ev->supervision_timeout)); |
| |
| if (use_ll_privacy(hdev) && |
| hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) && |
| hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) |
| hci_req_disable_address_resolution(hdev); |
| } |
| |
| static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| if (ev->status) { |
| struct adv_info *adv; |
| |
| adv = hci_find_adv_instance(hdev, ev->handle); |
| if (!adv) |
| return; |
| |
| /* Remove advertising as it has been terminated */ |
| hci_remove_adv_instance(hdev, ev->handle); |
| mgmt_advertising_removed(NULL, hdev, ev->handle); |
| |
| return; |
| } |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle)); |
| if (conn) { |
| struct adv_info *adv_instance; |
| |
| if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM || |
| bacmp(&conn->resp_addr, BDADDR_ANY)) |
| return; |
| |
| if (!hdev->cur_adv_instance) { |
| bacpy(&conn->resp_addr, &hdev->random_addr); |
| return; |
| } |
| |
| adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance); |
| if (adv_instance) |
| bacpy(&conn->resp_addr, &adv_instance->random_addr); |
| } |
| } |
| |
| static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_le_conn_update_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| if (ev->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn) { |
| conn->le_conn_interval = le16_to_cpu(ev->interval); |
| conn->le_conn_latency = le16_to_cpu(ev->latency); |
| conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| /* This function requires the caller holds hdev->lock */ |
| static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev, |
| bdaddr_t *addr, |
| u8 addr_type, u8 adv_type, |
| bdaddr_t *direct_rpa) |
| { |
| struct hci_conn *conn; |
| struct hci_conn_params *params; |
| |
| /* If the event is not connectable don't proceed further */ |
| if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND) |
| return NULL; |
| |
| /* Ignore if the device is blocked */ |
| if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type)) |
| return NULL; |
| |
| /* Most controller will fail if we try to create new connections |
| * while we have an existing one in slave role. |
| */ |
| if (hdev->conn_hash.le_num_slave > 0 && |
| (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) || |
| !(hdev->le_states[3] & 0x10))) |
| 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 connections 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, |
| hdev->def_le_autoconnect_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, |
| bool ext_adv) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| struct smp_irk *irk; |
| struct hci_conn *conn; |
| bool match; |
| u32 flags; |
| u8 *ptr; |
| |
| switch (type) { |
| case LE_ADV_IND: |
| case LE_ADV_DIRECT_IND: |
| case LE_ADV_SCAN_IND: |
| case LE_ADV_NONCONN_IND: |
| case LE_ADV_SCAN_RSP: |
| break; |
| default: |
| bt_dev_err_ratelimited(hdev, "unknown advertising packet " |
| "type: 0x%02x", type); |
| return; |
| } |
| |
| if (!ext_adv && len > HCI_MAX_AD_LENGTH) { |
| bt_dev_err_ratelimited(hdev, "legacy adv larger than 31 bytes"); |
| 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; |
| } |
| |
| /* Adjust for actual length. This handles the case when remote |
| * device is advertising with incorrect data length. |
| */ |
| len = ptr - data; |
| |
| /* 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 (!ext_adv && conn && type == LE_ADV_IND && len <= HCI_MAX_AD_LENGTH) { |
| /* 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, or advertisement monitoring requested. |
| */ |
| 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) && |
| idr_is_empty(&hdev->adv_monitors_idr)) |
| 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 (!ext_adv && !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 (!ext_adv && (type == LE_ADV_IND || |
| type == LE_ADV_SCAN_IND)) { |
| store_pending_adv_report(hdev, bdaddr, bdaddr_type, |
| rssi, flags, data, len); |
| return; |
| } |
| |
| /* The advertising reports cannot be merged, so clear |
| * the pending report and send out a device found event. |
| */ |
| clear_pending_adv_report(hdev); |
| mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, |
| rssi, flags, data, len, NULL, 0); |
| return; |
| } |
| |
| /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and |
| * the new event is a SCAN_RSP. We can therefore proceed with |
| * sending a merged device found event. |
| */ |
| mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK, |
| d->last_adv_addr_type, NULL, rssi, d->last_adv_flags, |
| d->last_adv_data, d->last_adv_data_len, data, len); |
| clear_pending_adv_report(hdev); |
| } |
| |
| static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| u8 num_reports = skb->data[0]; |
| void *ptr = &skb->data[1]; |
| |
| hci_dev_lock(hdev); |
| |
| while (num_reports--) { |
| struct hci_ev_le_advertising_info *ev = ptr; |
| s8 rssi; |
| |
| if (ptr > (void *)skb_tail_pointer(skb) - sizeof(*ev)) { |
| bt_dev_err(hdev, "Malicious advertising data."); |
| break; |
| } |
| |
| if (ev->length <= HCI_MAX_AD_LENGTH && |
| ev->data + ev->length <= skb_tail_pointer(skb)) { |
| rssi = ev->data[ev->length]; |
| process_adv_report(hdev, ev->evt_type, &ev->bdaddr, |
| ev->bdaddr_type, NULL, 0, rssi, |
| ev->data, ev->length, false); |
| } else { |
| bt_dev_err(hdev, "Dropping invalid advertising data"); |
| } |
| |
| ptr += sizeof(*ev) + ev->length + 1; |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type) |
| { |
| if (evt_type & LE_EXT_ADV_LEGACY_PDU) { |
| switch (evt_type) { |
| case LE_LEGACY_ADV_IND: |
| return LE_ADV_IND; |
| case LE_LEGACY_ADV_DIRECT_IND: |
| return LE_ADV_DIRECT_IND; |
| case LE_LEGACY_ADV_SCAN_IND: |
| return LE_ADV_SCAN_IND; |
| case LE_LEGACY_NONCONN_IND: |
| return LE_ADV_NONCONN_IND; |
| case LE_LEGACY_SCAN_RSP_ADV: |
| case LE_LEGACY_SCAN_RSP_ADV_SCAN: |
| return LE_ADV_SCAN_RSP; |
| } |
| |
| goto invalid; |
| } |
| |
| if (evt_type & LE_EXT_ADV_CONN_IND) { |
| if (evt_type & LE_EXT_ADV_DIRECT_IND) |
| return LE_ADV_DIRECT_IND; |
| |
| return LE_ADV_IND; |
| } |
| |
| if (evt_type & LE_EXT_ADV_SCAN_RSP) |
| return LE_ADV_SCAN_RSP; |
| |
| if (evt_type & LE_EXT_ADV_SCAN_IND) |
| return LE_ADV_SCAN_IND; |
| |
| if (evt_type == LE_EXT_ADV_NON_CONN_IND || |
| evt_type & LE_EXT_ADV_DIRECT_IND) |
| return LE_ADV_NONCONN_IND; |
| |
| invalid: |
| bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x", |
| evt_type); |
| |
| return LE_ADV_INVALID; |
| } |
| |
| static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| u8 num_reports = skb->data[0]; |
| void *ptr = &skb->data[1]; |
| |
| hci_dev_lock(hdev); |
| |
| while (num_reports--) { |
| struct hci_ev_le_ext_adv_report *ev = ptr; |
| u8 legacy_evt_type; |
| u16 evt_type; |
| |
| evt_type = __le16_to_cpu(ev->evt_type); |
| legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type); |
| if (legacy_evt_type != LE_ADV_INVALID) { |
| process_adv_report(hdev, legacy_evt_type, &ev->bdaddr, |
| ev->bdaddr_type, NULL, 0, ev->rssi, |
| ev->data, ev->length, |
| !(evt_type & LE_EXT_ADV_LEGACY_PDU)); |
| } |
| |
| ptr += sizeof(*ev) + ev->length; |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn) { |
| if (!ev->status) |
| memcpy(conn->features[0], ev->features, 8); |
| |
| if (conn->state == BT_CONFIG) { |
| __u8 status; |
| |
| /* If the local controller supports slave-initiated |
| * features exchange, but the remote controller does |
| * not, then it is possible that the error code 0x1a |
| * for unsupported remote feature gets returned. |
| * |
| * In this specific case, allow the connection to |
| * transition into connected state and mark it as |
| * successful. |
| */ |
| if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) && |
| !conn->out && ev->status == 0x1a) |
| status = 0x00; |
| else |
| status = ev->status; |
| |
| conn->state = BT_CONNECTED; |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_le_ltk_req *ev = (void *) skb->data; |
| struct hci_cp_le_ltk_reply cp; |
| struct hci_cp_le_ltk_neg_reply neg; |
| struct hci_conn *conn; |
| struct smp_ltk *ltk; |
| |
| BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle)); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn == NULL) |
| goto not_found; |
| |
| ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role); |
| if (!ltk) |
| goto not_found; |
| |
| if (smp_ltk_is_sc(ltk)) { |
| /* With SC both EDiv and Rand are set to zero */ |
| if (ev->ediv || ev->rand) |
| goto not_found; |
| } else { |
| /* For non-SC keys check that EDiv and Rand match */ |
| if (ev->ediv != ltk->ediv || ev->rand != ltk->rand) |
| goto not_found; |
| } |
| |
| memcpy(cp.ltk, ltk->val, ltk->enc_size); |
| memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size); |
| cp.handle = cpu_to_le16(conn->handle); |
| |
| conn->pending_sec_level = smp_ltk_sec_level(ltk); |
| |
| conn->enc_key_size = ltk->enc_size; |
| |
| hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); |
| |
| /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a |
| * temporary key used to encrypt a connection following |
| * pairing. It is used during the Encrypted Session Setup to |
| * distribute the keys. Later, security can be re-established |
| * using a distributed LTK. |
| */ |
| if (ltk->type == SMP_STK) { |
| set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags); |
| list_del_rcu(<k->list); |
| kfree_rcu(ltk, rcu); |
| } else { |
| clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags); |
| } |
| |
| hci_dev_unlock(hdev); |
| |
| return; |
| |
| not_found: |
| neg.handle = ev->handle; |
| hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg); |
| hci_dev_unlock(hdev); |
| } |
| |
| static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle, |
| u8 reason) |
| { |
| struct hci_cp_le_conn_param_req_neg_reply cp; |
| |
| cp.handle = cpu_to_le16(handle); |
| cp.reason = reason; |
| |
| hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp), |
| &cp); |
| } |
| |
| static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data; |
| struct hci_cp_le_conn_param_req_reply cp; |
| struct hci_conn *hcon; |
| u16 handle, min, max, latency, timeout; |
| |
| handle = le16_to_cpu(ev->handle); |
| min = le16_to_cpu(ev->interval_min); |
| max = le16_to_cpu(ev->interval_max); |
| latency = le16_to_cpu(ev->latency); |
| timeout = le16_to_cpu(ev->timeout); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, handle); |
| if (!hcon || hcon->state != BT_CONNECTED) |
| return send_conn_param_neg_reply(hdev, handle, |
| HCI_ERROR_UNKNOWN_CONN_ID); |
| |
| if (hci_check_conn_params(min, max, latency, timeout)) |
| return send_conn_param_neg_reply(hdev, handle, |
| HCI_ERROR_INVALID_LL_PARAMS); |
| |
| if (hcon->role == HCI_ROLE_MASTER) { |
| struct hci_conn_params *params; |
| u8 store_hint; |
| |
| hci_dev_lock(hdev); |
| |
| params = hci_conn_params_lookup(hdev, &hcon->dst, |
| hcon->dst_type); |
| if (params) { |
| params->conn_min_interval = min; |
| params->conn_max_interval = max; |
| params->conn_latency = latency; |
| params->supervision_timeout = timeout; |
| store_hint = 0x01; |
| } else{ |
| store_hint = 0x00; |
| } |
| |
| hci_dev_unlock(hdev); |
| |
| mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type, |
| store_hint, min, max, latency, timeout); |
| } |
| |
| cp.handle = ev->handle; |
| cp.interval_min = ev->interval_min; |
| cp.interval_max = ev->interval_max; |
| cp.latency = ev->latency; |
| cp.timeout = ev->timeout; |
| cp.min_ce_len = 0; |
| cp.max_ce_len = 0; |
| |
| hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp); |
| } |
| |
| static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| u8 num_reports = skb->data[0]; |
| struct hci_ev_le_direct_adv_info *ev = (void *)&skb->data[1]; |
| |
| if (!num_reports || skb->len < num_reports * sizeof(*ev) + 1) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| for (; num_reports; num_reports--, ev++) |
| process_adv_report(hdev, ev->evt_type, &ev->bdaddr, |
| ev->bdaddr_type, &ev->direct_addr, |
| ev->direct_addr_type, ev->rssi, NULL, 0, |
| false); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_phy_update_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_le_phy_update_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| if (ev->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (!conn) |
| goto unlock; |
| |
| conn->le_tx_phy = ev->tx_phy; |
| conn->le_rx_phy = ev->rx_phy; |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_le_meta *le_ev = (void *) skb->data; |
| |
| skb_pull(skb, sizeof(*le_ev)); |
| |
| switch (le_ev->subevent) { |
| case HCI_EV_LE_CONN_COMPLETE: |
| hci_le_conn_complete_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_CONN_UPDATE_COMPLETE: |
| hci_le_conn_update_complete_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_ADVERTISING_REPORT: |
| hci_le_adv_report_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_REMOTE_FEAT_COMPLETE: |
| hci_le_remote_feat_complete_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_LTK_REQ: |
| hci_le_ltk_request_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_REMOTE_CONN_PARAM_REQ: |
| hci_le_remote_conn_param_req_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_DIRECT_ADV_REPORT: |
| hci_le_direct_adv_report_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_PHY_UPDATE_COMPLETE: |
| hci_le_phy_update_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_EXT_ADV_REPORT: |
| hci_le_ext_adv_report_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_ENHANCED_CONN_COMPLETE: |
| hci_le_enh_conn_complete_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_EXT_ADV_SET_TERM: |
| hci_le_ext_adv_term_evt(hdev, skb); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode, |
| u8 event, struct sk_buff *skb) |
| { |
| struct hci_ev_cmd_complete *ev; |
| struct hci_event_hdr *hdr; |
| |
| if (!skb) |
| return false; |
| |
| if (skb->len < sizeof(*hdr)) { |
| bt_dev_err(hdev, "too short HCI event"); |
| return false; |
| } |
| |
| hdr = (void *) skb->data; |
| skb_pull(skb, HCI_EVENT_HDR_SIZE); |
| |
| if (event) { |
| if (hdr->evt != event) |
| return false; |
| return true; |
| } |
| |
| /* Check if request ended in Command Status - no way to retreive |
| * any extra parameters in this case. |
| */ |
| if (hdr->evt == HCI_EV_CMD_STATUS) |
| return false; |
| |
| if (hdr->evt != HCI_EV_CMD_COMPLETE) { |
| bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)", |
| hdr->evt); |
| return false; |
| } |
| |
| if (skb->len < sizeof(*ev)) { |
| bt_dev_err(hdev, "too short cmd_complete event"); |
| return false; |
| } |
| |
| ev = (void *) skb->data; |
| skb_pull(skb, sizeof(*ev)); |
| |
| if (opcode != __le16_to_cpu(ev->opcode)) { |
| BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode, |
| __le16_to_cpu(ev->opcode)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static void hci_store_wake_reason(struct hci_dev *hdev, u8 event, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_le_advertising_info *adv; |
| struct hci_ev_le_direct_adv_info *direct_adv; |
| struct hci_ev_le_ext_adv_report *ext_adv; |
| const struct hci_ev_conn_complete *conn_complete = (void *)skb->data; |
| const struct hci_ev_conn_request *conn_request = (void *)skb->data; |
| |
| hci_dev_lock(hdev); |
| |
| /* If we are currently suspended and this is the first BT event seen, |
| * save the wake reason associated with the event. |
| */ |
| if (!hdev->suspended || hdev->wake_reason) |
| goto unlock; |
| |
| /* Default to remote wake. Values for wake_reason are documented in the |
| * Bluez mgmt api docs. |
| */ |
| hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE; |
| |
| /* Once configured for remote wakeup, we should only wake up for |
| * reconnections. It's useful to see which device is waking us up so |
| * keep track of the bdaddr of the connection event that woke us up. |
| */ |
| if (event == HCI_EV_CONN_REQUEST) { |
| bacpy(&hdev->wake_addr, &conn_complete->bdaddr); |
| hdev->wake_addr_type = BDADDR_BREDR; |
| } else if (event == HCI_EV_CONN_COMPLETE) { |
| bacpy(&hdev->wake_addr, &conn_request->bdaddr); |
| hdev->wake_addr_type = BDADDR_BREDR; |
| } else if (event == HCI_EV_LE_META) { |
| struct hci_ev_le_meta *le_ev = (void *)skb->data; |
| u8 subevent = le_ev->subevent; |
| u8 *ptr = &skb->data[sizeof(*le_ev)]; |
| u8 num_reports = *ptr; |
| |
| if ((subevent == HCI_EV_LE_ADVERTISING_REPORT || |
| subevent == HCI_EV_LE_DIRECT_ADV_REPORT || |
| subevent == HCI_EV_LE_EXT_ADV_REPORT) && |
| num_reports) { |
| adv = (void *)(ptr + 1); |
| direct_adv = (void *)(ptr + 1); |
| ext_adv = (void *)(ptr + 1); |
| |
| switch (subevent) { |
| case HCI_EV_LE_ADVERTISING_REPORT: |
| bacpy(&hdev->wake_addr, &adv->bdaddr); |
| hdev->wake_addr_type = adv->bdaddr_type; |
| break; |
| case HCI_EV_LE_DIRECT_ADV_REPORT: |
| bacpy(&hdev->wake_addr, &direct_adv->bdaddr); |
| hdev->wake_addr_type = direct_adv->bdaddr_type; |
| break; |
| case HCI_EV_LE_EXT_ADV_REPORT: |
| bacpy(&hdev->wake_addr, &ext_adv->bdaddr); |
| hdev->wake_addr_type = ext_adv->bdaddr_type; |
| break; |
| } |
| } |
| } else { |
| hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED; |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| 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); |
| |
| /* Store wake reason if we're suspended */ |
| hci_store_wake_reason(hdev, event, skb); |
| |
| 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; |
| |
| case HCI_EV_VENDOR: |
| msft_vendor_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++; |
| } |
