| /* |
| 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 "a2mp.h" |
| #include "amp.h" |
| |
| /* Handle HCI Event packets */ |
| |
| static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| clear_bit(HCI_INQUIRY, &hdev->flags); |
| smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ |
| wake_up_bit(&hdev->flags, HCI_INQUIRY); |
| |
| hci_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; |
| |
| set_bit(HCI_PERIODIC_INQ, &hdev->dev_flags); |
| } |
| |
| 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; |
| |
| clear_bit(HCI_PERIODIC_INQ, &hdev->dev_flags); |
| |
| 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) { |
| if (rp->role) |
| conn->link_mode &= ~HCI_LM_MASTER; |
| else |
| conn->link_mode |= HCI_LM_MASTER; |
| } |
| |
| 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); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY); |
| if (!sent) |
| return; |
| |
| if (!status) |
| 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); |
| |
| /* Reset all non-persistent flags */ |
| hdev->dev_flags &= ~HCI_PERSISTENT_MASK; |
| |
| hdev->discovery.state = 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; |
| } |
| |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_SETUP, &hdev->dev_flags)) |
| 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; |
| |
| if (!status) { |
| __u8 param = *((__u8 *) sent); |
| |
| if (param == AUTH_ENABLED) |
| set_bit(HCI_AUTH, &hdev->flags); |
| else |
| clear_bit(HCI_AUTH, &hdev->flags); |
| } |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| mgmt_auth_enable_complete(hdev, status); |
| } |
| |
| static void hci_cc_write_encrypt_mode(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_ENCRYPT_MODE); |
| if (!sent) |
| return; |
| |
| if (!status) { |
| __u8 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 param, status = *((__u8 *) skb->data); |
| int old_pscan, old_iscan; |
| 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) { |
| mgmt_write_scan_failed(hdev, param, status); |
| hdev->discov_timeout = 0; |
| goto done; |
| } |
| |
| /* We need to ensure that we set this back on if someone changed |
| * the scan mode through a raw HCI socket. |
| */ |
| set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); |
| |
| old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags); |
| old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags); |
| |
| if (param & SCAN_INQUIRY) { |
| set_bit(HCI_ISCAN, &hdev->flags); |
| if (!old_iscan) |
| mgmt_discoverable(hdev, 1); |
| } else if (old_iscan) |
| mgmt_discoverable(hdev, 0); |
| |
| if (param & SCAN_PAGE) { |
| set_bit(HCI_PSCAN, &hdev->flags); |
| if (!old_pscan) |
| mgmt_connectable(hdev, 1); |
| } else if (old_pscan) |
| mgmt_connectable(hdev, 0); |
| |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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; |
| |
| if (!status) { |
| if (sent->mode) |
| hdev->features[1][0] |= LMP_HOST_SSP; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_SSP; |
| } |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| mgmt_ssp_enable_complete(hdev, sent->mode, status); |
| else if (!status) { |
| if (sent->mode) |
| set_bit(HCI_SSP_ENABLED, &hdev->dev_flags); |
| else |
| clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags); |
| } |
| } |
| |
| 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; |
| |
| if (!status) { |
| if (sent->support) |
| hdev->features[1][0] |= LMP_HOST_SC; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_SC; |
| } |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| mgmt_sc_enable_complete(hdev, sent->support, status); |
| else if (!status) { |
| if (sent->support) |
| set_bit(HCI_SC_ENABLED, &hdev->dev_flags); |
| else |
| clear_bit(HCI_SC_ENABLED, &hdev->dev_flags); |
| } |
| } |
| |
| 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 (test_bit(HCI_SETUP, &hdev->dev_flags)) { |
| 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 (test_bit(HCI_SETUP, &hdev->dev_flags)) |
| memcpy(hdev->commands, rp->commands, sizeof(hdev->commands)); |
| } |
| |
| static void hci_cc_read_local_features(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_features *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| memcpy(hdev->features, rp->features, 8); |
| |
| /* Adjust default settings according to features |
| * supported by device. */ |
| |
| if (hdev->features[0][0] & LMP_3SLOT) |
| hdev->pkt_type |= (HCI_DM3 | HCI_DH3); |
| |
| if (hdev->features[0][0] & LMP_5SLOT) |
| hdev->pkt_type |= (HCI_DM5 | HCI_DH5); |
| |
| if (hdev->features[0][1] & LMP_HV2) { |
| hdev->pkt_type |= (HCI_HV2); |
| hdev->esco_type |= (ESCO_HV2); |
| } |
| |
| if (hdev->features[0][1] & LMP_HV3) { |
| hdev->pkt_type |= (HCI_HV3); |
| hdev->esco_type |= (ESCO_HV3); |
| } |
| |
| if (lmp_esco_capable(hdev)) |
| hdev->esco_type |= (ESCO_EV3); |
| |
| if (hdev->features[0][4] & LMP_EV4) |
| hdev->esco_type |= (ESCO_EV4); |
| |
| if (hdev->features[0][4] & LMP_EV5) |
| hdev->esco_type |= (ESCO_EV5); |
| |
| if (hdev->features[0][5] & LMP_EDR_ESCO_2M) |
| hdev->esco_type |= (ESCO_2EV3); |
| |
| if (hdev->features[0][5] & LMP_EDR_ESCO_3M) |
| hdev->esco_type |= (ESCO_3EV3); |
| |
| if (hdev->features[0][5] & LMP_EDR_3S_ESCO) |
| hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5); |
| } |
| |
| static void hci_cc_read_local_ext_features(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_ext_features *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| return; |
| |
| if (hdev->max_page < rp->max_page) |
| hdev->max_page = rp->max_page; |
| |
| if (rp->page < HCI_MAX_PAGES) |
| memcpy(hdev->features[rp->page], rp->features, 8); |
| } |
| |
| static void hci_cc_read_flow_control_mode(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_flow_control_mode *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (!rp->status) |
| 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) |
| bacpy(&hdev->bdaddr, &rp->bdaddr); |
| } |
| |
| static void hci_cc_read_page_scan_activity(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_page_scan_activity *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (test_bit(HCI_INIT, &hdev->flags) && !rp->status) { |
| 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 (test_bit(HCI_INIT, &hdev->flags) && !rp->status) |
| 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_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) |
| goto a2mp_rsp; |
| |
| 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); |
| |
| a2mp_rsp: |
| a2mp_send_getinfo_rsp(hdev); |
| } |
| |
| static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data; |
| struct amp_assoc *assoc = &hdev->loc_assoc; |
| size_t rem_len, frag_len; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| if (rp->status) |
| goto a2mp_rsp; |
| |
| frag_len = skb->len - sizeof(*rp); |
| rem_len = __le16_to_cpu(rp->rem_len); |
| |
| if (rem_len > frag_len) { |
| BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len); |
| |
| memcpy(assoc->data + assoc->offset, rp->frag, frag_len); |
| assoc->offset += frag_len; |
| |
| /* Read other fragments */ |
| amp_read_loc_assoc_frag(hdev, rp->phy_handle); |
| |
| return; |
| } |
| |
| memcpy(assoc->data + assoc->offset, rp->frag, rem_len); |
| assoc->len = assoc->offset + rem_len; |
| assoc->offset = 0; |
| |
| a2mp_rsp: |
| /* Send A2MP Rsp when all fragments are received */ |
| a2mp_send_getampassoc_rsp(hdev, rp->status); |
| a2mp_send_create_phy_link_req(hdev, rp->status); |
| } |
| |
| 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) |
| hdev->inq_tx_power = rp->tx_power; |
| } |
| |
| static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_rp_pin_code_reply *rp = (void *) skb->data; |
| struct hci_cp_pin_code_reply *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); |
| |
| hci_dev_lock(hdev); |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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) |
| 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) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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); |
| |
| hci_dev_lock(hdev); |
| mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->randomizer, |
| NULL, NULL, rp->status); |
| hci_dev_unlock(hdev); |
| } |
| |
| 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); |
| |
| hci_dev_lock(hdev); |
| mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->randomizer192, |
| rp->hash256, rp->randomizer256, |
| rp->status); |
| hci_dev_unlock(hdev); |
| } |
| |
| |
| 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); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR); |
| if (!sent) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!status) |
| bacpy(&hdev->random_addr, sent); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| __u8 *sent, status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE); |
| if (!sent) |
| return; |
| |
| if (status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| /* If we're doing connection initation as peripheral. Set a |
| * timeout in case something goes wrong. |
| */ |
| if (*sent) { |
| struct hci_conn *conn; |
| |
| conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); |
| if (conn) |
| queue_delayed_work(hdev->workqueue, |
| &conn->le_conn_timeout, |
| HCI_LE_CONN_TIMEOUT); |
| } |
| |
| mgmt_advertising(hdev, *sent); |
| |
| 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); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (!status) |
| hdev->le_scan_type = cp->type; |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static bool has_pending_adv_report(struct hci_dev *hdev) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| return bacmp(&d->last_adv_addr, BDADDR_ANY); |
| } |
| |
| static void clear_pending_adv_report(struct hci_dev *hdev) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| bacpy(&d->last_adv_addr, BDADDR_ANY); |
| d->last_adv_data_len = 0; |
| } |
| |
| static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 bdaddr_type, s8 rssi, u8 *data, u8 len) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| |
| bacpy(&d->last_adv_addr, bdaddr); |
| d->last_adv_addr_type = bdaddr_type; |
| d->last_adv_rssi = rssi; |
| memcpy(d->last_adv_data, data, len); |
| d->last_adv_data_len = len; |
| } |
| |
| static void hci_cc_le_set_scan_enable(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_cp_le_set_scan_enable *cp; |
| __u8 status = *((__u8 *) skb->data); |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE); |
| if (!cp) |
| return; |
| |
| if (status) |
| return; |
| |
| switch (cp->enable) { |
| case LE_SCAN_ENABLE: |
| set_bit(HCI_LE_SCAN, &hdev->dev_flags); |
| 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, 0, 1, |
| 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); |
| |
| clear_bit(HCI_LE_SCAN, &hdev->dev_flags); |
| /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we |
| * interrupted scanning due to a connect request. Mark |
| * therefore discovery as stopped. |
| */ |
| if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED, |
| &hdev->dev_flags)) |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| break; |
| |
| default: |
| BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable); |
| break; |
| } |
| } |
| |
| 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) |
| 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) |
| hci_white_list_clear(hdev); |
| } |
| |
| 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); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST); |
| if (!sent) |
| return; |
| |
| if (!status) |
| hci_white_list_add(hdev, &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); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST); |
| if (!sent) |
| return; |
| |
| if (!status) |
| hci_white_list_del(hdev, &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) |
| memcpy(hdev->le_states, rp->le_states, 8); |
| } |
| |
| 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); |
| |
| sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED); |
| if (!sent) |
| return; |
| |
| if (!status) { |
| if (sent->le) { |
| hdev->features[1][0] |= LMP_HOST_LE; |
| set_bit(HCI_LE_ENABLED, &hdev->dev_flags); |
| } else { |
| hdev->features[1][0] &= ~LMP_HOST_LE; |
| clear_bit(HCI_LE_ENABLED, &hdev->dev_flags); |
| clear_bit(HCI_ADVERTISING, &hdev->dev_flags); |
| } |
| |
| if (sent->simul) |
| hdev->features[1][0] |= LMP_HOST_LE_BREDR; |
| else |
| hdev->features[1][0] &= ~LMP_HOST_LE_BREDR; |
| } |
| } |
| |
| 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_write_remote_amp_assoc(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data; |
| |
| BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x", |
| hdev->name, rp->status, rp->phy_handle); |
| |
| if (rp->status) |
| return; |
| |
| amp_write_rem_assoc_continue(hdev, rp->phy_handle); |
| } |
| |
| 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_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_proto_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); |
| if (conn) { |
| conn->out = true; |
| conn->link_mode |= HCI_LM_MASTER; |
| } else |
| BT_ERR("No memory for new connection"); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_add_sco *cp; |
| struct hci_conn *acl, *sco; |
| __u16 handle; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO); |
| if (!cp) |
| return; |
| |
| handle = __le16_to_cpu(cp->handle); |
| |
| BT_DBG("%s handle 0x%4.4x", hdev->name, handle); |
| |
| hci_dev_lock(hdev); |
| |
| acl = hci_conn_hash_lookup_handle(hdev, handle); |
| if (acl) { |
| sco = acl->link; |
| if (sco) { |
| sco->state = BT_CLOSED; |
| |
| hci_proto_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_proto_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_proto_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; |
| |
| if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) |
| mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name, |
| name_len, conn->dev_class); |
| |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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; |
| |
| 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_proto_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_proto_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_proto_connect_cfm(sco, status); |
| hci_conn_del(sco); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_sniff_mode *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status) |
| { |
| struct hci_cp_exit_sniff_mode *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) { |
| clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags); |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_disconnect *cp; |
| struct hci_conn *conn; |
| |
| if (!status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
| if (conn) |
| mgmt_disconnect_failed(hdev, &conn->dst, conn->type, |
| conn->dst_type, status); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_create_phy_link *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (status) { |
| struct hci_conn *hcon; |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle); |
| if (hcon) |
| hci_conn_del(hcon); |
| } else { |
| amp_write_remote_assoc(hdev, cp->phy_handle); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_accept_phy_link *cp; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK); |
| if (!cp) |
| return; |
| |
| amp_write_remote_assoc(hdev, cp->phy_handle); |
| } |
| |
| static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) |
| { |
| struct hci_cp_le_create_conn *cp; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, status); |
| |
| /* All connection failure handling is taken care of by the |
| * hci_le_conn_failed function which is triggered by the HCI |
| * request completion callbacks used for connecting. |
| */ |
| if (status) |
| return; |
| |
| cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN); |
| if (!cp) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr); |
| if (!conn) |
| goto unlock; |
| |
| /* Store the initiator and responder address information which |
| * is needed for SMP. These values will not change during the |
| * lifetime of the connection. |
| */ |
| conn->init_addr_type = cp->own_address_type; |
| if (cp->own_address_type == ADDR_LE_DEV_RANDOM) |
| bacpy(&conn->init_addr, &hdev->random_addr); |
| else |
| bacpy(&conn->init_addr, &hdev->bdaddr); |
| |
| conn->resp_addr_type = cp->peer_addr_type; |
| bacpy(&conn->resp_addr, &cp->peer_addr); |
| |
| /* We don't want the connection attempt to stick around |
| * indefinitely since LE doesn't have a page timeout concept |
| * like BR/EDR. Set a timer for any connection that doesn't use |
| * the white list for connecting. |
| */ |
| if (cp->filter_policy == HCI_LE_USE_PEER_ADDR) |
| queue_delayed_work(conn->hdev->workqueue, |
| &conn->le_conn_timeout, |
| HCI_LE_CONN_TIMEOUT); |
| |
| unlock: |
| 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_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 (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if (discov->state != DISCOVERY_FINDING) |
| goto unlock; |
| |
| if (list_empty(&discov->resolve)) { |
| 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 { |
| hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct inquiry_data data; |
| struct inquiry_info *info = (void *) (skb->data + 1); |
| int num_rsp = *((__u8 *) skb->data); |
| |
| BT_DBG("%s num_rsp %d", hdev->name, num_rsp); |
| |
| if (!num_rsp) |
| return; |
| |
| if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| for (; num_rsp; num_rsp--, info++) { |
| bool name_known, ssp; |
| |
| 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 = 0x00; |
| data.ssp_mode = 0x00; |
| |
| name_known = hci_inquiry_cache_update(hdev, &data, false, &ssp); |
| mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, |
| info->dev_class, 0, !name_known, ssp, NULL, |
| 0, NULL, 0); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_conn_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr); |
| if (!conn) { |
| if (ev->link_type != SCO_LINK) |
| goto unlock; |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| conn->type = SCO_LINK; |
| } |
| |
| if (!ev->status) { |
| conn->handle = __le16_to_cpu(ev->handle); |
| |
| if (conn->type == ACL_LINK) { |
| conn->state = BT_CONFIG; |
| hci_conn_hold(conn); |
| |
| if (!conn->out && !hci_conn_ssp_enabled(conn) && |
| !hci_find_link_key(hdev, &ev->bdaddr)) |
| conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
| else |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| } else |
| conn->state = BT_CONNECTED; |
| |
| hci_conn_add_sysfs(conn); |
| |
| if (test_bit(HCI_AUTH, &hdev->flags)) |
| conn->link_mode |= HCI_LM_AUTH; |
| |
| if (test_bit(HCI_ENCRYPT, &hdev->flags)) |
| conn->link_mode |= HCI_LM_ENCRYPT; |
| |
| /* 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); |
| } |
| |
| /* 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_proto_connect_cfm(conn, ev->status); |
| hci_conn_del(conn); |
| } else if (ev->link_type != ACL_LINK) |
| hci_proto_connect_cfm(conn, ev->status); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| |
| hci_conn_check_pending(hdev); |
| } |
| |
| 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; |
| __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_blacklist_lookup(hdev, &ev->bdaddr, BDADDR_BREDR)) { |
| /* Connection accepted */ |
| struct inquiry_entry *ie; |
| struct hci_conn *conn; |
| |
| 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); |
| if (!conn) { |
| BT_ERR("No memory for new connection"); |
| hci_dev_unlock(hdev); |
| return; |
| } |
| } |
| |
| memcpy(conn->dev_class, ev->dev_class, 3); |
| |
| hci_dev_unlock(hdev); |
| |
| if (ev->link_type == ACL_LINK || |
| (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) { |
| struct hci_cp_accept_conn_req cp; |
| conn->state = BT_CONNECT; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| |
| if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER)) |
| cp.role = 0x00; /* Become master */ |
| else |
| cp.role = 0x01; /* Remain slave */ |
| |
| hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), |
| &cp); |
| } else if (!(flags & HCI_PROTO_DEFER)) { |
| struct hci_cp_accept_sync_conn_req cp; |
| conn->state = BT_CONNECT; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| cp.pkt_type = cpu_to_le16(conn->pkt_type); |
| |
| cp.tx_bandwidth = cpu_to_le32(0x00001f40); |
| cp.rx_bandwidth = cpu_to_le32(0x00001f40); |
| cp.max_latency = cpu_to_le16(0xffff); |
| cp.content_format = cpu_to_le16(hdev->voice_setting); |
| cp.retrans_effort = 0xff; |
| |
| hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, |
| sizeof(cp), &cp); |
| } else { |
| conn->state = BT_CONNECT2; |
| hci_proto_connect_cfm(conn, 0); |
| } |
| } else { |
| /* Connection rejected */ |
| struct hci_cp_reject_conn_req cp; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| cp.reason = HCI_ERROR_REJ_BAD_ADDR; |
| hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp); |
| } |
| } |
| |
| 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 = hci_to_mgmt_reason(ev->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); |
| mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type, |
| reason, mgmt_connected); |
| |
| if (conn->type == ACL_LINK && conn->flush_key) |
| hci_remove_link_key(hdev, &conn->dst); |
| |
| params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); |
| if (params) { |
| switch (params->auto_connect) { |
| case HCI_AUTO_CONN_LINK_LOSS: |
| if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT) |
| break; |
| /* Fall through */ |
| |
| case HCI_AUTO_CONN_ALWAYS: |
| hci_pend_le_conn_add(hdev, &conn->dst, conn->dst_type); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| type = conn->type; |
| |
| hci_proto_disconn_cfm(conn, ev->reason); |
| hci_conn_del(conn); |
| |
| /* Re-enable advertising if necessary, since it might |
| * have been disabled by the connection. From the |
| * HCI_LE_Set_Advertise_Enable command description in |
| * the core specification (v4.0): |
| * "The Controller shall continue advertising until the Host |
| * issues an LE_Set_Advertise_Enable command with |
| * Advertising_Enable set to 0x00 (Advertising is disabled) |
| * or until a connection is created or until the Advertising |
| * is timed out due to Directed Advertising." |
| */ |
| if (type == LE_LINK) |
| mgmt_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) { |
| if (!hci_conn_ssp_enabled(conn) && |
| test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) { |
| BT_INFO("re-auth of legacy device is not possible."); |
| } else { |
| conn->link_mode |= HCI_LM_AUTH; |
| conn->sec_level = conn->pending_sec_level; |
| } |
| } else { |
| mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type, |
| 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_proto_connect_cfm(conn, ev->status); |
| hci_conn_drop(conn); |
| } |
| } else { |
| hci_auth_cfm(conn, ev->status); |
| |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| hci_conn_drop(conn); |
| } |
| |
| if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { |
| if (!ev->status) { |
| struct hci_cp_set_conn_encrypt cp; |
| cp.handle = ev->handle; |
| cp.encrypt = 0x01; |
| hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), |
| &cp); |
| } else { |
| clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); |
| hci_encrypt_cfm(conn, ev->status, 0x00); |
| } |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_remote_name *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_conn_check_pending(hdev); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| |
| if (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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; |
| 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 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 */ |
| conn->link_mode |= HCI_LM_AUTH; |
| conn->link_mode |= HCI_LM_ENCRYPT; |
| conn->sec_level = conn->pending_sec_level; |
| |
| /* P-256 authentication key implies FIPS */ |
| if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256) |
| conn->link_mode |= HCI_LM_FIPS; |
| |
| if ((conn->type == ACL_LINK && ev->encrypt == 0x02) || |
| conn->type == LE_LINK) |
| set_bit(HCI_CONN_AES_CCM, &conn->flags); |
| } else { |
| conn->link_mode &= ~HCI_LM_ENCRYPT; |
| clear_bit(HCI_CONN_AES_CCM, &conn->flags); |
| } |
| } |
| |
| 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; |
| |
| /* In Secure Connections Only mode, do not allow any |
| * connections that are not encrypted with AES-CCM |
| * using a P-256 authenticated combination key. |
| */ |
| if (test_bit(HCI_SC_ONLY, &hdev->dev_flags) && |
| (!test_bit(HCI_CONN_AES_CCM, &conn->flags) || |
| conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) { |
| hci_proto_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE); |
| hci_conn_drop(conn); |
| goto unlock; |
| } |
| |
| hci_proto_connect_cfm(conn, ev->status); |
| hci_conn_drop(conn); |
| } else |
| hci_encrypt_cfm(conn, ev->status, ev->encrypt); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_change_link_key_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_change_link_key_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn) { |
| if (!ev->status) |
| conn->link_mode |= HCI_LM_SECURE; |
| |
| 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_ssp_capable(hdev) && lmp_ssp_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->dst, conn->type, |
| conn->dst_type, 0, NULL, 0, |
| conn->dev_class); |
| |
| if (!hci_outgoing_auth_needed(hdev, conn)) { |
| conn->state = BT_CONNECTED; |
| hci_proto_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) |
| { |
| struct hci_ev_cmd_complete *ev = (void *) skb->data; |
| u8 status = skb->data[sizeof(*ev)]; |
| __u16 opcode; |
| |
| skb_pull(skb, sizeof(*ev)); |
| |
| opcode = __le16_to_cpu(ev->opcode); |
| |
| switch (opcode) { |
| case HCI_OP_INQUIRY_CANCEL: |
| hci_cc_inquiry_cancel(hdev, skb); |
| break; |
| |
| case HCI_OP_PERIODIC_INQ: |
| hci_cc_periodic_inq(hdev, skb); |
| break; |
| |
| case HCI_OP_EXIT_PERIODIC_INQ: |
| hci_cc_exit_periodic_inq(hdev, skb); |
| break; |
| |
| case HCI_OP_REMOTE_NAME_REQ_CANCEL: |
| hci_cc_remote_name_req_cancel(hdev, skb); |
| break; |
| |
| case HCI_OP_ROLE_DISCOVERY: |
| hci_cc_role_discovery(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LINK_POLICY: |
| hci_cc_read_link_policy(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_LINK_POLICY: |
| hci_cc_write_link_policy(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_DEF_LINK_POLICY: |
| hci_cc_read_def_link_policy(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_DEF_LINK_POLICY: |
| hci_cc_write_def_link_policy(hdev, skb); |
| break; |
| |
| case HCI_OP_RESET: |
| hci_cc_reset(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_LOCAL_NAME: |
| hci_cc_write_local_name(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_NAME: |
| hci_cc_read_local_name(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_AUTH_ENABLE: |
| hci_cc_write_auth_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_ENCRYPT_MODE: |
| hci_cc_write_encrypt_mode(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_SCAN_ENABLE: |
| hci_cc_write_scan_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_CLASS_OF_DEV: |
| hci_cc_read_class_of_dev(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_CLASS_OF_DEV: |
| hci_cc_write_class_of_dev(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_VOICE_SETTING: |
| hci_cc_read_voice_setting(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_VOICE_SETTING: |
| hci_cc_write_voice_setting(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_NUM_SUPPORTED_IAC: |
| hci_cc_read_num_supported_iac(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_SSP_MODE: |
| hci_cc_write_ssp_mode(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_SC_SUPPORT: |
| hci_cc_write_sc_support(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_VERSION: |
| hci_cc_read_local_version(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_COMMANDS: |
| hci_cc_read_local_commands(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_FEATURES: |
| hci_cc_read_local_features(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_EXT_FEATURES: |
| hci_cc_read_local_ext_features(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_BUFFER_SIZE: |
| hci_cc_read_buffer_size(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_BD_ADDR: |
| hci_cc_read_bd_addr(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_PAGE_SCAN_ACTIVITY: |
| hci_cc_read_page_scan_activity(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY: |
| hci_cc_write_page_scan_activity(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_PAGE_SCAN_TYPE: |
| hci_cc_read_page_scan_type(hdev, skb); |
| break; |
| |
| case HCI_OP_WRITE_PAGE_SCAN_TYPE: |
| hci_cc_write_page_scan_type(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_DATA_BLOCK_SIZE: |
| hci_cc_read_data_block_size(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_FLOW_CONTROL_MODE: |
| hci_cc_read_flow_control_mode(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_AMP_INFO: |
| hci_cc_read_local_amp_info(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_AMP_ASSOC: |
| hci_cc_read_local_amp_assoc(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_INQ_RSP_TX_POWER: |
| hci_cc_read_inq_rsp_tx_power(hdev, skb); |
| break; |
| |
| case HCI_OP_PIN_CODE_REPLY: |
| hci_cc_pin_code_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_PIN_CODE_NEG_REPLY: |
| hci_cc_pin_code_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_OOB_DATA: |
| hci_cc_read_local_oob_data(hdev, skb); |
| break; |
| |
| case HCI_OP_READ_LOCAL_OOB_EXT_DATA: |
| hci_cc_read_local_oob_ext_data(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_BUFFER_SIZE: |
| hci_cc_le_read_buffer_size(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_LOCAL_FEATURES: |
| hci_cc_le_read_local_features(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_ADV_TX_POWER: |
| hci_cc_le_read_adv_tx_power(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_CONFIRM_REPLY: |
| hci_cc_user_confirm_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_CONFIRM_NEG_REPLY: |
| hci_cc_user_confirm_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_PASSKEY_REPLY: |
| hci_cc_user_passkey_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_USER_PASSKEY_NEG_REPLY: |
| hci_cc_user_passkey_neg_reply(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_RANDOM_ADDR: |
| hci_cc_le_set_random_addr(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_ADV_ENABLE: |
| hci_cc_le_set_adv_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_SCAN_PARAM: |
| hci_cc_le_set_scan_param(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_SET_SCAN_ENABLE: |
| hci_cc_le_set_scan_enable(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_WHITE_LIST_SIZE: |
| hci_cc_le_read_white_list_size(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_CLEAR_WHITE_LIST: |
| hci_cc_le_clear_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_ADD_TO_WHITE_LIST: |
| hci_cc_le_add_to_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_DEL_FROM_WHITE_LIST: |
| hci_cc_le_del_from_white_list(hdev, skb); |
| break; |
| |
| case HCI_OP_LE_READ_SUPPORTED_STATES: |
| hci_cc_le_read_supported_states(hdev, skb); |
| break; |
| |
| case HCI_OP_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_WRITE_REMOTE_AMP_ASSOC: |
| hci_cc_write_remote_amp_assoc(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; |
| |
| default: |
| BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); |
| break; |
| } |
| |
| if (opcode != HCI_OP_NOP) |
| del_timer(&hdev->cmd_timer); |
| |
| hci_req_cmd_complete(hdev, opcode, status); |
| |
| if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) { |
| atomic_set(&hdev->cmd_cnt, 1); |
| if (!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) |
| { |
| struct hci_ev_cmd_status *ev = (void *) skb->data; |
| __u16 opcode; |
| |
| skb_pull(skb, sizeof(*ev)); |
| |
| opcode = __le16_to_cpu(ev->opcode); |
| |
| 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_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_DISCONNECT: |
| hci_cs_disconnect(hdev, ev->status); |
| break; |
| |
| case HCI_OP_CREATE_PHY_LINK: |
| hci_cs_create_phylink(hdev, ev->status); |
| break; |
| |
| case HCI_OP_ACCEPT_PHY_LINK: |
| hci_cs_accept_phylink(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_CREATE_CONN: |
| hci_cs_le_create_conn(hdev, ev->status); |
| break; |
| |
| case HCI_OP_LE_START_ENC: |
| hci_cs_le_start_enc(hdev, ev->status); |
| break; |
| |
| default: |
| BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); |
| break; |
| } |
| |
| if (opcode != HCI_OP_NOP) |
| del_timer(&hdev->cmd_timer); |
| |
| if (ev->status || |
| (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event)) |
| hci_req_cmd_complete(hdev, opcode, ev->status); |
| |
| if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) { |
| atomic_set(&hdev->cmd_cnt, 1); |
| if (!skb_queue_empty(&hdev->cmd_q)) |
| queue_work(hdev->workqueue, &hdev->cmd_work); |
| } |
| } |
| |
| 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) { |
| if (ev->role) |
| conn->link_mode &= ~HCI_LM_MASTER; |
| else |
| conn->link_mode |= HCI_LM_MASTER; |
| } |
| |
| clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags); |
| |
| hci_role_switch_cfm(conn, ev->status, ev->role); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_num_comp_pkts *ev = (void *) skb->data; |
| int i; |
| |
| if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) { |
| BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode); |
| return; |
| } |
| |
| if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) + |
| ev->num_hndl * sizeof(struct hci_comp_pkts_info)) { |
| BT_DBG("%s bad parameters", hdev->name); |
| return; |
| } |
| |
| BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl); |
| |
| for (i = 0; i < ev->num_hndl; i++) { |
| struct hci_comp_pkts_info *info = &ev->handles[i]; |
| struct hci_conn *conn; |
| __u16 handle, count; |
| |
| handle = __le16_to_cpu(info->handle); |
| count = __le16_to_cpu(info->count); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, handle); |
| if (!conn) |
| continue; |
| |
| conn->sent -= count; |
| |
| switch (conn->type) { |
| case ACL_LINK: |
| hdev->acl_cnt += count; |
| if (hdev->acl_cnt > hdev->acl_pkts) |
| hdev->acl_cnt = hdev->acl_pkts; |
| break; |
| |
| case LE_LINK: |
| if (hdev->le_pkts) { |
| hdev->le_cnt += count; |
| if (hdev->le_cnt > hdev->le_pkts) |
| hdev->le_cnt = hdev->le_pkts; |
| } else { |
| hdev->acl_cnt += count; |
| if (hdev->acl_cnt > hdev->acl_pkts) |
| hdev->acl_cnt = hdev->acl_pkts; |
| } |
| break; |
| |
| case SCO_LINK: |
| hdev->sco_cnt += count; |
| if (hdev->sco_cnt > hdev->sco_pkts) |
| hdev->sco_cnt = hdev->sco_pkts; |
| break; |
| |
| default: |
| BT_ERR("Unknown type %d conn %p", conn->type, conn); |
| break; |
| } |
| } |
| |
| queue_work(hdev->workqueue, &hdev->tx_work); |
| } |
| |
| static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev, |
| __u16 handle) |
| { |
| struct hci_chan *chan; |
| |
| switch (hdev->dev_type) { |
| case HCI_BREDR: |
| return hci_conn_hash_lookup_handle(hdev, handle); |
| case HCI_AMP: |
| chan = hci_chan_lookup_handle(hdev, handle); |
| if (chan) |
| return chan->conn; |
| break; |
| default: |
| BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type); |
| break; |
| } |
| |
| return NULL; |
| } |
| |
| static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_num_comp_blocks *ev = (void *) skb->data; |
| int i; |
| |
| if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) { |
| BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode); |
| return; |
| } |
| |
| if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) + |
| ev->num_hndl * sizeof(struct hci_comp_blocks_info)) { |
| BT_DBG("%s bad parameters", hdev->name); |
| return; |
| } |
| |
| BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks, |
| ev->num_hndl); |
| |
| for (i = 0; i < ev->num_hndl; i++) { |
| struct hci_comp_blocks_info *info = &ev->handles[i]; |
| struct hci_conn *conn = NULL; |
| __u16 handle, block_count; |
| |
| handle = __le16_to_cpu(info->handle); |
| block_count = __le16_to_cpu(info->blocks); |
| |
| conn = __hci_conn_lookup_handle(hdev, handle); |
| if (!conn) |
| continue; |
| |
| conn->sent -= block_count; |
| |
| switch (conn->type) { |
| case ACL_LINK: |
| case AMP_LINK: |
| hdev->block_cnt += block_count; |
| if (hdev->block_cnt > hdev->num_blocks) |
| hdev->block_cnt = hdev->num_blocks; |
| break; |
| |
| default: |
| BT_ERR("Unknown type %d conn %p", conn->type, conn); |
| break; |
| } |
| } |
| |
| queue_work(hdev->workqueue, &hdev->tx_work); |
| } |
| |
| static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_mode_change *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (conn) { |
| conn->mode = ev->mode; |
| |
| if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, |
| &conn->flags)) { |
| if (conn->mode == HCI_CM_ACTIVE) |
| set_bit(HCI_CONN_POWER_SAVE, &conn->flags); |
| else |
| clear_bit(HCI_CONN_POWER_SAVE, &conn->flags); |
| } |
| |
| if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags)) |
| hci_sco_setup(conn, ev->status); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_pin_code_req *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| if (conn->state == BT_CONNECTED) { |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
| hci_conn_drop(conn); |
| } |
| |
| if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags)) |
| hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, |
| sizeof(ev->bdaddr), &ev->bdaddr); |
| else if (test_bit(HCI_MGMT, &hdev->dev_flags)) { |
| 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 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 (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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); |
| |
| if (!test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) && |
| key->type == HCI_LK_DEBUG_COMBINATION) { |
| BT_DBG("%s ignoring debug key", hdev->name); |
| goto not_found; |
| } |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); |
| if (conn) { |
| 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->key_type = key->type; |
| conn->pin_length = 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; |
| 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) { |
| hci_conn_hold(conn); |
| conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
| pin_len = conn->pin_length; |
| |
| if (ev->key_type != HCI_LK_CHANGED_COMBINATION) |
| conn->key_type = ev->key_type; |
| |
| hci_conn_drop(conn); |
| } |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key, |
| ev->key_type, pin_len); |
| |
| 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); |
| bool name_known, ssp; |
| |
| BT_DBG("%s num_rsp %d", hdev->name, num_rsp); |
| |
| if (!num_rsp) |
| return; |
| |
| if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) { |
| struct inquiry_info_with_rssi_and_pscan_mode *info; |
| info = (void *) (skb->data + 1); |
| |
| for (; num_rsp; num_rsp--, info++) { |
| 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; |
| |
| name_known = hci_inquiry_cache_update(hdev, &data, |
| false, &ssp); |
| mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, |
| info->dev_class, info->rssi, |
| !name_known, ssp, NULL, 0, NULL, 0); |
| } |
| } else { |
| struct inquiry_info_with_rssi *info = (void *) (skb->data + 1); |
| |
| for (; num_rsp; num_rsp--, info++) { |
| 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; |
| name_known = hci_inquiry_cache_update(hdev, &data, |
| false, &ssp); |
| mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, |
| info->dev_class, info->rssi, |
| !name_known, ssp, NULL, 0, NULL, 0); |
| } |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_remote_ext_features_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_remote_ext_features *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| |
| BT_DBG("%s", hdev->name); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
| if (!conn) |
| goto unlock; |
| |
| if (ev->page < HCI_MAX_PAGES) |
| memcpy(conn->features[ev->page], ev->features, 8); |
| |
| if (!ev->status && ev->page == 0x01) { |
| struct inquiry_entry *ie; |
| |
| ie = hci_inquiry_cache_lookup(hdev, &conn->dst); |
| if (ie) |
| ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); |
| |
| if (ev->features[0] & LMP_HOST_SSP) { |
| set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); |
| } else { |
| /* It is mandatory by the Bluetooth specification that |
| * Extended Inquiry Results are only used when Secure |
| * Simple Pairing is enabled, but some devices violate |
| * this. |
| * |
| * To make these devices work, the internal SSP |
| * enabled flag needs to be cleared if the remote host |
| * features do not indicate SSP support */ |
| clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags); |
| } |
| |
| if (ev->features[0] & LMP_HOST_SC) |
| set_bit(HCI_CONN_SC_ENABLED, &conn->flags); |
| } |
| |
| if (conn->state != BT_CONFIG) |
| goto unlock; |
| |
| if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) { |
| struct hci_cp_remote_name_req cp; |
| memset(&cp, 0, sizeof(cp)); |
| bacpy(&cp.bdaddr, &conn->dst); |
| cp.pscan_rep_mode = 0x02; |
| hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp); |
| } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) |
| mgmt_device_connected(hdev, &conn->dst, conn->type, |
| conn->dst_type, 0, NULL, 0, |
| conn->dev_class); |
| |
| if (!hci_outgoing_auth_needed(hdev, conn)) { |
| conn->state = BT_CONNECTED; |
| hci_proto_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; |
| |
| conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr); |
| if (!conn) |
| goto unlock; |
| |
| conn->type = SCO_LINK; |
| } |
| |
| switch (ev->status) { |
| case 0x00: |
| conn->handle = __le16_to_cpu(ev->handle); |
| conn->state = BT_CONNECTED; |
| |
| hci_conn_add_sysfs(conn); |
| break; |
| |
| case 0x0d: /* Connection Rejected due to Limited Resources */ |
| case 0x11: /* Unsupported Feature or Parameter Value */ |
| case 0x1c: /* SCO interval rejected */ |
| case 0x1a: /* Unsupported Remote Feature */ |
| case 0x1f: /* Unspecified error */ |
| case 0x20: /* Unsupported LMP Parameter value */ |
| if (conn->out) { |
| conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) | |
| (hdev->esco_type & EDR_ESCO_MASK); |
| if (hci_setup_sync(conn, conn->link->handle)) |
| goto unlock; |
| } |
| /* fall through */ |
| |
| default: |
| conn->state = BT_CLOSED; |
| break; |
| } |
| |
| hci_proto_connect_cfm(conn, ev->status); |
| if (ev->status) |
| hci_conn_del(conn); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static inline size_t eir_get_length(u8 *eir, size_t eir_len) |
| { |
| size_t parsed = 0; |
| |
| while (parsed < eir_len) { |
| u8 field_len = eir[0]; |
| |
| if (field_len == 0) |
| return parsed; |
| |
| parsed += field_len + 1; |
| eir += field_len + 1; |
| } |
| |
| return eir_len; |
| } |
| |
| static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct inquiry_data data; |
| struct extended_inquiry_info *info = (void *) (skb->data + 1); |
| int num_rsp = *((__u8 *) skb->data); |
| size_t eir_len; |
| |
| BT_DBG("%s num_rsp %d", hdev->name, num_rsp); |
| |
| if (!num_rsp) |
| return; |
| |
| if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| for (; num_rsp; num_rsp--, info++) { |
| bool name_known, ssp; |
| |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| name_known = eir_has_data_type(info->data, |
| sizeof(info->data), |
| EIR_NAME_COMPLETE); |
| else |
| name_known = true; |
| |
| name_known = hci_inquiry_cache_update(hdev, &data, name_known, |
| &ssp); |
| eir_len = eir_get_length(info->data, sizeof(info->data)); |
| mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, |
| info->dev_class, info->rssi, !name_known, |
| ssp, 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_proto_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 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 (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| goto unlock; |
| |
| if (test_bit(HCI_PAIRABLE, &hdev->dev_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) { |
| cp.authentication = conn->auth_type; |
| |
| /* Request MITM protection if our IO caps allow it |
| * except for the no-bonding case |
| */ |
| if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && |
| cp.authentication != HCI_AT_NO_BONDING) |
| cp.authentication |= 0x01; |
| } else { |
| conn->auth_type = hci_get_auth_req(conn); |
| cp.authentication = conn->auth_type; |
| } |
| |
| if (hci_find_remote_oob_data(hdev, &conn->dst) && |
| (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags))) |
| cp.oob_data = 0x01; |
| else |
| cp.oob_data = 0x00; |
| |
| 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; |
| if (ev->oob_data) |
| set_bit(HCI_CONN_REMOTE_OOB, &conn->flags); |
| |
| 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 (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 |
| */ |
| if (loc_mitm && 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). */ |
| if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { |
| BT_DBG("Confirming auto-accept as acceptor"); |
| confirm_hint = 1; |
| goto confirm; |
| } |
| |
| BT_DBG("Auto-accept of user confirmation with %ums delay", |
| hdev->auto_accept_delay); |
| |
| if (hdev->auto_accept_delay > 0) { |
| int delay = msecs_to_jiffies(hdev->auto_accept_delay); |
| queue_delayed_work(conn->hdev->workqueue, |
| &conn->auto_accept_work, delay); |
| goto unlock; |
| } |
| |
| hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, |
| sizeof(ev->bdaddr), &ev->bdaddr); |
| goto unlock; |
| } |
| |
| confirm: |
| mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, |
| le32_to_cpu(ev->passkey), confirm_hint); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_user_passkey_request_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_user_passkey_req *ev = (void *) skb->data; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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 (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 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; |
| |
| /* 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(hdev, &conn->dst, conn->type, conn->dst_type, |
| 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 (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| goto unlock; |
| |
| data = hci_find_remote_oob_data(hdev, &ev->bdaddr); |
| if (data) { |
| if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) { |
| struct hci_cp_remote_oob_ext_data_reply cp; |
| |
| bacpy(&cp.bdaddr, &ev->bdaddr); |
| memcpy(cp.hash192, data->hash192, sizeof(cp.hash192)); |
| memcpy(cp.randomizer192, data->randomizer192, |
| sizeof(cp.randomizer192)); |
| memcpy(cp.hash256, data->hash256, sizeof(cp.hash256)); |
| memcpy(cp.randomizer256, data->randomizer256, |
| sizeof(cp.randomizer256)); |
| |
| 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.randomizer, data->randomizer192, |
| sizeof(cp.randomizer)); |
| |
| hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, |
| sizeof(cp), &cp); |
| } |
| } else { |
| 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); |
| } |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_phy_link_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_phy_link_complete *ev = (void *) skb->data; |
| struct hci_conn *hcon, *bredr_hcon; |
| |
| BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle, |
| ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (!hcon) { |
| hci_dev_unlock(hdev); |
| return; |
| } |
| |
| if (ev->status) { |
| hci_conn_del(hcon); |
| hci_dev_unlock(hdev); |
| return; |
| } |
| |
| bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon; |
| |
| hcon->state = BT_CONNECTED; |
| bacpy(&hcon->dst, &bredr_hcon->dst); |
| |
| hci_conn_hold(hcon); |
| hcon->disc_timeout = HCI_DISCONN_TIMEOUT; |
| hci_conn_drop(hcon); |
| |
| hci_conn_add_sysfs(hcon); |
| |
| amp_physical_cfm(bredr_hcon, hcon); |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_logical_link_complete *ev = (void *) skb->data; |
| struct hci_conn *hcon; |
| struct hci_chan *hchan; |
| struct amp_mgr *mgr; |
| |
| BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x", |
| hdev->name, le16_to_cpu(ev->handle), ev->phy_handle, |
| ev->status); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (!hcon) |
| return; |
| |
| /* Create AMP hchan */ |
| hchan = hci_chan_create(hcon); |
| if (!hchan) |
| return; |
| |
| hchan->handle = le16_to_cpu(ev->handle); |
| |
| BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan); |
| |
| mgr = hcon->amp_mgr; |
| if (mgr && mgr->bredr_chan) { |
| struct l2cap_chan *bredr_chan = mgr->bredr_chan; |
| |
| l2cap_chan_lock(bredr_chan); |
| |
| bredr_chan->conn->mtu = hdev->block_mtu; |
| l2cap_logical_cfm(bredr_chan, hchan, 0); |
| hci_conn_hold(hcon); |
| |
| l2cap_chan_unlock(bredr_chan); |
| } |
| } |
| |
| static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data; |
| struct hci_chan *hchan; |
| |
| BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name, |
| le16_to_cpu(ev->handle), ev->status); |
| |
| if (ev->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle)); |
| if (!hchan) |
| goto unlock; |
| |
| amp_destroy_logical_link(hchan, ev->reason); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, |
| struct sk_buff *skb) |
| { |
| struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data; |
| struct hci_conn *hcon; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| if (ev->status) |
| return; |
| |
| hci_dev_lock(hdev); |
| |
| hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); |
| if (hcon) { |
| hcon->state = BT_CLOSED; |
| hci_conn_del(hcon); |
| } |
| |
| hci_dev_unlock(hdev); |
| } |
| |
| static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_ev_le_conn_complete *ev = (void *) skb->data; |
| struct hci_conn *conn; |
| struct smp_irk *irk; |
| |
| BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); |
| |
| hci_dev_lock(hdev); |
| |
| conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); |
| if (!conn) { |
| conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr); |
| if (!conn) { |
| BT_ERR("No memory for new connection"); |
| goto unlock; |
| } |
| |
| conn->dst_type = ev->bdaddr_type; |
| |
| if (ev->role == LE_CONN_ROLE_MASTER) { |
| conn->out = true; |
| conn->link_mode |= HCI_LM_MASTER; |
| } |
| |
| /* If we didn't have a hci_conn object previously |
| * but we're in master role this must be something |
| * initiated using a white list. Since white list based |
| * connections are not "first class citizens" we don't |
| * have full tracking of them. Therefore, we go ahead |
| * with a "best effort" approach of determining the |
| * initiator address based on the HCI_PRIVACY flag. |
| */ |
| if (conn->out) { |
| conn->resp_addr_type = ev->bdaddr_type; |
| bacpy(&conn->resp_addr, &ev->bdaddr); |
| if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) { |
| conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
| bacpy(&conn->init_addr, &hdev->rpa); |
| } else { |
| hci_copy_identity_address(hdev, |
| &conn->init_addr, |
| &conn->init_addr_type); |
| } |
| } |
| } else { |
| cancel_delayed_work(&conn->le_conn_timeout); |
| } |
| |
| if (!conn->out) { |
| /* Set the responder (our side) address type based on |
| * the advertising address type. |
| */ |
| conn->resp_addr_type = hdev->adv_addr_type; |
| if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) |
| bacpy(&conn->resp_addr, &hdev->random_addr); |
| else |
| bacpy(&conn->resp_addr, &hdev->bdaddr); |
| |
| conn->init_addr_type = ev->bdaddr_type; |
| bacpy(&conn->init_addr, &ev->bdaddr); |
| } |
| |
| /* Lookup the identity address from the stored connection |
| * address and address type. |
| * |
| * When establishing connections to an identity address, the |
| * connection procedure will store the resolvable random |
| * address first. Now if it can be converted back into the |
| * identity address, start using the identity address from |
| * now on. |
| */ |
| irk = hci_get_irk(hdev, &conn->dst, conn->dst_type); |
| if (irk) { |
| bacpy(&conn->dst, &irk->bdaddr); |
| conn->dst_type = irk->addr_type; |
| } |
| |
| if (ev->status) { |
| hci_le_conn_failed(conn, ev->status); |
| goto unlock; |
| } |
| |
| if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) |
| mgmt_device_connected(hdev, &conn->dst, conn->type, |
| conn->dst_type, 0, NULL, 0, NULL); |
| |
| conn->sec_level = BT_SECURITY_LOW; |
| conn->handle = __le16_to_cpu(ev->handle); |
| conn->state = BT_CONNECTED; |
| |
| if (test_bit(HCI_6LOWPAN_ENABLED, &hdev->dev_flags)) |
| set_bit(HCI_CONN_6LOWPAN, &conn->flags); |
| |
| hci_conn_add_sysfs(conn); |
| |
| hci_proto_connect_cfm(conn, ev->status); |
| |
| hci_pend_le_conn_del(hdev, &conn->dst, conn->dst_type); |
| |
| unlock: |
| hci_dev_unlock(hdev); |
| } |
| |
| /* This function requires the caller holds hdev->lock */ |
| static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr, |
| u8 addr_type) |
| { |
| struct hci_conn *conn; |
| struct smp_irk *irk; |
| |
| /* If this is a resolvable address, we should resolve it and then |
| * update address and address type variables. |
| */ |
| irk = hci_get_irk(hdev, addr, addr_type); |
| if (irk) { |
| addr = &irk->bdaddr; |
| addr_type = irk->addr_type; |
| } |
| |
| if (!hci_pend_le_conn_lookup(hdev, addr, addr_type)) |
| return; |
| |
| conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW, |
| HCI_AT_NO_BONDING); |
| if (!IS_ERR(conn)) |
| return; |
| |
| 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)); |
| } |
| } |
| |
| static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr, |
| u8 bdaddr_type, s8 rssi, u8 *data, u8 len) |
| { |
| struct discovery_state *d = &hdev->discovery; |
| bool match; |
| |
| /* Passive scanning shouldn't trigger any device found events */ |
| if (hdev->le_scan_type == LE_SCAN_PASSIVE) { |
| if (type == LE_ADV_IND || type == LE_ADV_DIRECT_IND) |
| check_pending_le_conn(hdev, bdaddr, bdaddr_type); |
| return; |
| } |
| |
| /* If there's nothing pending either store the data from this |
| * event or send an immediate device found event if the data |
| * should not be stored for later. |
| */ |
| if (!has_pending_adv_report(hdev)) { |
| /* If the report will trigger a SCAN_REQ store it for |
| * later merging. |
| */ |
| if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) { |
| store_pending_adv_report(hdev, bdaddr, bdaddr_type, |
| rssi, data, len); |
| return; |
| } |
| |
| mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, |
| rssi, 0, 1, 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, 0, 1, |
| d->last_adv_data, |
| d->last_adv_data_len, NULL, 0); |
| |
| /* If the new report will trigger a SCAN_REQ store it for |
| * later merging. |
| */ |
| if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) { |
| store_pending_adv_report(hdev, bdaddr, bdaddr_type, |
| rssi, 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, 0, 1, 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, 0, 1, data, len, |
| d->last_adv_data, d->last_adv_data_len); |
| clear_pending_adv_report(hdev); |
| } |
| |
| static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| u8 num_reports = skb->data[0]; |
| void *ptr = &skb->data[1]; |
| |
| hci_dev_lock(hdev); |
| |
| while (num_reports--) { |
| struct hci_ev_le_advertising_info *ev = ptr; |
| s8 rssi; |
| |
| rssi = ev->data[ev->length]; |
| process_adv_report(hdev, ev->evt_type, &ev->bdaddr, |
| ev->bdaddr_type, rssi, ev->data, ev->length); |
| |
| ptr += sizeof(*ev) + ev->length + 1; |
| } |
| |
| 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, ev->ediv, ev->rand, conn->out); |
| if (ltk == NULL) |
| goto not_found; |
| |
| memcpy(cp.ltk, ltk->val, sizeof(ltk->val)); |
| cp.handle = cpu_to_le16(conn->handle); |
| |
| if (ltk->authenticated) |
| conn->pending_sec_level = BT_SECURITY_HIGH; |
| else |
| conn->pending_sec_level = BT_SECURITY_MEDIUM; |
| |
| 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 == HCI_SMP_STK_SLAVE) { |
| list_del(<k->list); |
| kfree(ltk); |
| } |
| |
| 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 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_ADVERTISING_REPORT: |
| hci_le_adv_report_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_LE_LTK_REQ: |
| hci_le_ltk_request_evt(hdev, skb); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| 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); |
| } |
| |
| void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct hci_event_hdr *hdr = (void *) skb->data; |
| __u8 event = hdr->evt; |
| |
| hci_dev_lock(hdev); |
| |
| /* Received events are (currently) only needed when a request is |
| * ongoing so avoid unnecessary memory allocation. |
| */ |
| if (hdev->req_status == HCI_REQ_PEND) { |
| kfree_skb(hdev->recv_evt); |
| hdev->recv_evt = skb_clone(skb, GFP_KERNEL); |
| } |
| |
| hci_dev_unlock(hdev); |
| |
| skb_pull(skb, HCI_EVENT_HDR_SIZE); |
| |
| if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) { |
| struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data; |
| u16 opcode = __le16_to_cpu(cmd_hdr->opcode); |
| |
| hci_req_cmd_complete(hdev, opcode, 0); |
| } |
| |
| 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); |
| break; |
| |
| case HCI_EV_CMD_STATUS: |
| hci_cmd_status_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_CHANNEL_SELECTED: |
| hci_chan_selected_evt(hdev, skb); |
| break; |
| |
| case HCI_EV_REMOTE_OOB_DATA_REQUEST: |
| hci_remote_oob_data_request_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; |
| |
| case HCI_EV_NUM_COMP_BLOCKS: |
| hci_num_comp_blocks_evt(hdev, skb); |
| break; |
| |
| default: |
| BT_DBG("%s event 0x%2.2x", hdev->name, event); |
| break; |
| } |
| |
| kfree_skb(skb); |
| hdev->stat.evt_rx++; |
| } |
