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net/bluetooth/hci_request.c
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/* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2014 Intel Corporation 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. */ |
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#include <linux/sched/signal.h> |
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#include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> |
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#include <net/bluetooth/mgmt.h> |
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#include "smp.h" #include "hci_request.h" |
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#define HCI_REQ_DONE 0 #define HCI_REQ_PEND 1 #define HCI_REQ_CANCELED 2 |
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void hci_req_init(struct hci_request *req, struct hci_dev *hdev) { skb_queue_head_init(&req->cmd_q); req->hdev = hdev; req->err = 0; } |
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void hci_req_purge(struct hci_request *req) { skb_queue_purge(&req->cmd_q); } |
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bool hci_req_status_pend(struct hci_dev *hdev) { return hdev->req_status == HCI_REQ_PEND; } |
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static int req_run(struct hci_request *req, hci_req_complete_t complete, hci_req_complete_skb_t complete_skb) |
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{ struct hci_dev *hdev = req->hdev; struct sk_buff *skb; unsigned long flags; BT_DBG("length %u", skb_queue_len(&req->cmd_q)); /* If an error occurred during request building, remove all HCI * commands queued on the HCI request queue. */ if (req->err) { skb_queue_purge(&req->cmd_q); return req->err; } /* Do not allow empty requests */ if (skb_queue_empty(&req->cmd_q)) return -ENODATA; skb = skb_peek_tail(&req->cmd_q); |
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if (complete) { bt_cb(skb)->hci.req_complete = complete; } else if (complete_skb) { bt_cb(skb)->hci.req_complete_skb = complete_skb; bt_cb(skb)->hci.req_flags |= HCI_REQ_SKB; } |
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spin_lock_irqsave(&hdev->cmd_q.lock, flags); skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q); spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); queue_work(hdev->workqueue, &hdev->cmd_work); return 0; } |
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int hci_req_run(struct hci_request *req, hci_req_complete_t complete) { return req_run(req, complete, NULL); } int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete) { return req_run(req, NULL, complete); } |
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static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode, struct sk_buff *skb) { BT_DBG("%s result 0x%2.2x", hdev->name, result); if (hdev->req_status == HCI_REQ_PEND) { hdev->req_result = result; hdev->req_status = HCI_REQ_DONE; if (skb) hdev->req_skb = skb_get(skb); wake_up_interruptible(&hdev->req_wait_q); } } |
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void hci_req_sync_cancel(struct hci_dev *hdev, int err) |
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{ BT_DBG("%s err 0x%2.2x", hdev->name, err); if (hdev->req_status == HCI_REQ_PEND) { hdev->req_result = err; hdev->req_status = HCI_REQ_CANCELED; wake_up_interruptible(&hdev->req_wait_q); } } struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param, u8 event, u32 timeout) { |
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struct hci_request req; struct sk_buff *skb; int err = 0; BT_DBG("%s", hdev->name); hci_req_init(&req, hdev); hci_req_add_ev(&req, opcode, plen, param, event); hdev->req_status = HCI_REQ_PEND; |
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err = hci_req_run_skb(&req, hci_req_sync_complete); |
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if (err < 0) |
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return ERR_PTR(err); |
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err = wait_event_interruptible_timeout(hdev->req_wait_q, hdev->req_status != HCI_REQ_PEND, timeout); |
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if (err == -ERESTARTSYS) |
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return ERR_PTR(-EINTR); switch (hdev->req_status) { case HCI_REQ_DONE: err = -bt_to_errno(hdev->req_result); break; case HCI_REQ_CANCELED: err = -hdev->req_result; break; default: err = -ETIMEDOUT; break; } hdev->req_status = hdev->req_result = 0; skb = hdev->req_skb; hdev->req_skb = NULL; BT_DBG("%s end: err %d", hdev->name, err); if (err < 0) { kfree_skb(skb); return ERR_PTR(err); } if (!skb) return ERR_PTR(-ENODATA); return skb; } EXPORT_SYMBOL(__hci_cmd_sync_ev); struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param, u32 timeout) { return __hci_cmd_sync_ev(hdev, opcode, plen, param, 0, timeout); } EXPORT_SYMBOL(__hci_cmd_sync); /* Execute request and wait for completion. */ |
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int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req, unsigned long opt), |
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unsigned long opt, u32 timeout, u8 *hci_status) |
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{ struct hci_request req; |
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int err = 0; BT_DBG("%s start", hdev->name); hci_req_init(&req, hdev); hdev->req_status = HCI_REQ_PEND; |
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err = func(&req, opt); if (err) { if (hci_status) *hci_status = HCI_ERROR_UNSPECIFIED; return err; } |
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err = hci_req_run_skb(&req, hci_req_sync_complete); if (err < 0) { hdev->req_status = 0; |
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/* ENODATA means the HCI request command queue is empty. * This can happen when a request with conditionals doesn't * trigger any commands to be sent. This is normal behavior * and should not trigger an error return. */ |
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if (err == -ENODATA) { if (hci_status) *hci_status = 0; |
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return 0; |
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} if (hci_status) *hci_status = HCI_ERROR_UNSPECIFIED; |
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return err; } |
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err = wait_event_interruptible_timeout(hdev->req_wait_q, hdev->req_status != HCI_REQ_PEND, timeout); |
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if (err == -ERESTARTSYS) |
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return -EINTR; switch (hdev->req_status) { case HCI_REQ_DONE: err = -bt_to_errno(hdev->req_result); |
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if (hci_status) *hci_status = hdev->req_result; |
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break; case HCI_REQ_CANCELED: err = -hdev->req_result; |
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if (hci_status) *hci_status = HCI_ERROR_UNSPECIFIED; |
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break; default: err = -ETIMEDOUT; |
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if (hci_status) *hci_status = HCI_ERROR_UNSPECIFIED; |
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break; } |
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kfree_skb(hdev->req_skb); hdev->req_skb = NULL; |
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hdev->req_status = hdev->req_result = 0; BT_DBG("%s end: err %d", hdev->name, err); return err; } |
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int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req, unsigned long opt), |
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unsigned long opt, u32 timeout, u8 *hci_status) |
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{ int ret; if (!test_bit(HCI_UP, &hdev->flags)) return -ENETDOWN; /* Serialize all requests */ |
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hci_req_sync_lock(hdev); |
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ret = __hci_req_sync(hdev, req, opt, timeout, hci_status); |
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hci_req_sync_unlock(hdev); |
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return ret; } |
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struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param) { int len = HCI_COMMAND_HDR_SIZE + plen; struct hci_command_hdr *hdr; struct sk_buff *skb; skb = bt_skb_alloc(len, GFP_ATOMIC); if (!skb) return NULL; |
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hdr = skb_put(skb, HCI_COMMAND_HDR_SIZE); |
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hdr->opcode = cpu_to_le16(opcode); hdr->plen = plen; if (plen) |
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skb_put_data(skb, param, plen); |
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BT_DBG("skb len %d", skb->len); |
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hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; hci_skb_opcode(skb) = opcode; |
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return skb; } /* Queue a command to an asynchronous HCI request */ void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, const void *param, u8 event) { struct hci_dev *hdev = req->hdev; struct sk_buff *skb; BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); /* If an error occurred during request building, there is no point in * queueing the HCI command. We can simply return. */ if (req->err) return; skb = hci_prepare_cmd(hdev, opcode, plen, param); if (!skb) { |
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bt_dev_err(hdev, "no memory for command (opcode 0x%4.4x)", opcode); |
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req->err = -ENOMEM; return; } if (skb_queue_empty(&req->cmd_q)) |
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bt_cb(skb)->hci.req_flags |= HCI_REQ_START; |
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bt_cb(skb)->hci.req_event = event; |
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skb_queue_tail(&req->cmd_q, skb); } void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, const void *param) { hci_req_add_ev(req, opcode, plen, param, 0); } |
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void __hci_req_write_fast_connectable(struct hci_request *req, bool enable) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_page_scan_activity acp; u8 type; if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) return; if (hdev->hci_ver < BLUETOOTH_VER_1_2) return; if (enable) { type = PAGE_SCAN_TYPE_INTERLACED; /* 160 msec page scan interval */ acp.interval = cpu_to_le16(0x0100); } else { |
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type = hdev->def_page_scan_type; acp.interval = cpu_to_le16(hdev->def_page_scan_int); |
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} |
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acp.window = cpu_to_le16(hdev->def_page_scan_window); |
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if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval || __cpu_to_le16(hdev->page_scan_window) != acp.window) hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp), &acp); if (hdev->page_scan_type != type) hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type); } |
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/* This function controls the background scanning based on hdev->pend_le_conns * list. If there are pending LE connection we start the background scanning, * otherwise we stop it. * * This function requires the caller holds hdev->lock. */ static void __hci_update_background_scan(struct hci_request *req) { struct hci_dev *hdev = req->hdev; if (!test_bit(HCI_UP, &hdev->flags) || test_bit(HCI_INIT, &hdev->flags) || hci_dev_test_flag(hdev, HCI_SETUP) || hci_dev_test_flag(hdev, HCI_CONFIG) || hci_dev_test_flag(hdev, HCI_AUTO_OFF) || hci_dev_test_flag(hdev, HCI_UNREGISTER)) return; /* No point in doing scanning if LE support hasn't been enabled */ if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED)) return; /* If discovery is active don't interfere with it */ if (hdev->discovery.state != DISCOVERY_STOPPED) return; /* Reset RSSI and UUID filters when starting background scanning * since these filters are meant for service discovery only. * * The Start Discovery and Start Service Discovery operations * ensure to set proper values for RSSI threshold and UUID * filter list. So it is safe to just reset them here. */ hci_discovery_filter_clear(hdev); |
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BT_DBG("%s ADV monitoring is %s", hdev->name, hci_is_adv_monitoring(hdev) ? "on" : "off"); |
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if (list_empty(&hdev->pend_le_conns) && |
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list_empty(&hdev->pend_le_reports) && !hci_is_adv_monitoring(hdev)) { |
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/* If there is no pending LE connections or devices |
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* to be scanned for or no ADV monitors, we should stop the * background scanning. |
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*/ /* If controller is not scanning we are done. */ if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) return; |
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hci_req_add_le_scan_disable(req, false); |
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BT_DBG("%s stopping background scanning", hdev->name); } else { /* If there is at least one pending LE connection, we should * keep the background scan running. */ /* If controller is connecting, we should not start scanning * since some controllers are not able to scan and connect at * the same time. */ if (hci_lookup_le_connect(hdev)) return; /* If controller is currently scanning, we stop it to ensure we * don't miss any advertising (due to duplicates filter). */ if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) |
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hci_req_add_le_scan_disable(req, false); |
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hci_req_add_le_passive_scan(req); BT_DBG("%s starting background scanning", hdev->name); } } |
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void __hci_req_update_name(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_local_name cp; memcpy(cp.name, hdev->dev_name, sizeof(cp.name)); hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp); } |
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#define PNP_INFO_SVCLASS_ID 0x1200 static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) { u8 *ptr = data, *uuids_start = NULL; struct bt_uuid *uuid; if (len < 4) return ptr; list_for_each_entry(uuid, &hdev->uuids, list) { u16 uuid16; if (uuid->size != 16) continue; uuid16 = get_unaligned_le16(&uuid->uuid[12]); if (uuid16 < 0x1100) continue; if (uuid16 == PNP_INFO_SVCLASS_ID) continue; if (!uuids_start) { uuids_start = ptr; uuids_start[0] = 1; uuids_start[1] = EIR_UUID16_ALL; ptr += 2; } /* Stop if not enough space to put next UUID */ if ((ptr - data) + sizeof(u16) > len) { uuids_start[1] = EIR_UUID16_SOME; break; } *ptr++ = (uuid16 & 0x00ff); *ptr++ = (uuid16 & 0xff00) >> 8; uuids_start[0] += sizeof(uuid16); } return ptr; } static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) { u8 *ptr = data, *uuids_start = NULL; struct bt_uuid *uuid; if (len < 6) return ptr; list_for_each_entry(uuid, &hdev->uuids, list) { if (uuid->size != 32) continue; if (!uuids_start) { uuids_start = ptr; uuids_start[0] = 1; uuids_start[1] = EIR_UUID32_ALL; ptr += 2; } /* Stop if not enough space to put next UUID */ if ((ptr - data) + sizeof(u32) > len) { uuids_start[1] = EIR_UUID32_SOME; break; } memcpy(ptr, &uuid->uuid[12], sizeof(u32)); ptr += sizeof(u32); uuids_start[0] += sizeof(u32); } return ptr; } static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) { u8 *ptr = data, *uuids_start = NULL; struct bt_uuid *uuid; if (len < 18) return ptr; list_for_each_entry(uuid, &hdev->uuids, list) { if (uuid->size != 128) continue; if (!uuids_start) { uuids_start = ptr; uuids_start[0] = 1; uuids_start[1] = EIR_UUID128_ALL; ptr += 2; } /* Stop if not enough space to put next UUID */ if ((ptr - data) + 16 > len) { uuids_start[1] = EIR_UUID128_SOME; break; } memcpy(ptr, uuid->uuid, 16); ptr += 16; uuids_start[0] += 16; } return ptr; } static void create_eir(struct hci_dev *hdev, u8 *data) { u8 *ptr = data; size_t name_len; name_len = strlen(hdev->dev_name); if (name_len > 0) { /* EIR Data type */ if (name_len > 48) { name_len = 48; ptr[1] = EIR_NAME_SHORT; } else ptr[1] = EIR_NAME_COMPLETE; /* EIR Data length */ ptr[0] = name_len + 1; memcpy(ptr + 2, hdev->dev_name, name_len); ptr += (name_len + 2); } if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) { ptr[0] = 2; ptr[1] = EIR_TX_POWER; ptr[2] = (u8) hdev->inq_tx_power; ptr += 3; } if (hdev->devid_source > 0) { ptr[0] = 9; ptr[1] = EIR_DEVICE_ID; put_unaligned_le16(hdev->devid_source, ptr + 2); put_unaligned_le16(hdev->devid_vendor, ptr + 4); put_unaligned_le16(hdev->devid_product, ptr + 6); put_unaligned_le16(hdev->devid_version, ptr + 8); ptr += 10; } ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data)); ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data)); ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data)); } void __hci_req_update_eir(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_eir cp; if (!hdev_is_powered(hdev)) return; if (!lmp_ext_inq_capable(hdev)) return; if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) return; if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE)) return; memset(&cp, 0, sizeof(cp)); create_eir(hdev, cp.data); if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) return; memcpy(hdev->eir, cp.data, sizeof(cp.data)); hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp); } |
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void hci_req_add_le_scan_disable(struct hci_request *req, bool rpa_le_conn) |
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{ |
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struct hci_dev *hdev = req->hdev; |
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if (hdev->scanning_paused) { bt_dev_dbg(hdev, "Scanning is paused for suspend"); return; } |
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if (use_ext_scan(hdev)) { struct hci_cp_le_set_ext_scan_enable cp; memset(&cp, 0, sizeof(cp)); cp.enable = LE_SCAN_DISABLE; hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_ENABLE, sizeof(cp), &cp); } else { struct hci_cp_le_set_scan_enable cp; memset(&cp, 0, sizeof(cp)); cp.enable = LE_SCAN_DISABLE; hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); } |
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/* Disable address resolution */ |
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if (use_ll_privacy(hdev) && |
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652 |
hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) && |
5c49bcce5 Bluetooth: Enable... |
653 |
hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION) && !rpa_le_conn) { |
e1d572357 Bluetooth: Config... |
654 |
__u8 enable = 0x00; |
cbbdfa6f3 Bluetooth: Enable... |
655 |
|
e1d572357 Bluetooth: Config... |
656 657 |
hci_req_add(req, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE, 1, &enable); } |
0857dd3be Bluetooth: Split ... |
658 |
} |
dd522a742 Bluetooth: Handle... |
659 660 661 662 663 664 665 666 667 668 669 |
static void del_from_white_list(struct hci_request *req, bdaddr_t *bdaddr, u8 bdaddr_type) { struct hci_cp_le_del_from_white_list cp; cp.bdaddr_type = bdaddr_type; bacpy(&cp.bdaddr, bdaddr); bt_dev_dbg(req->hdev, "Remove %pMR (0x%x) from whitelist", &cp.bdaddr, cp.bdaddr_type); hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, sizeof(cp), &cp); |
0eee35bdf Bluetooth: Update... |
670 |
|
c98d33579 Bluetooth: Fix: L... |
671 672 |
if (use_ll_privacy(req->hdev) && hci_dev_test_flag(req->hdev, HCI_ENABLE_LL_PRIVACY)) { |
0eee35bdf Bluetooth: Update... |
673 674 675 676 677 678 679 680 681 682 683 684 685 |
struct smp_irk *irk; irk = hci_find_irk_by_addr(req->hdev, bdaddr, bdaddr_type); if (irk) { struct hci_cp_le_del_from_resolv_list cp; cp.bdaddr_type = bdaddr_type; bacpy(&cp.bdaddr, bdaddr); hci_req_add(req, HCI_OP_LE_DEL_FROM_RESOLV_LIST, sizeof(cp), &cp); } } |
dd522a742 Bluetooth: Handle... |
686 687 688 689 690 691 |
} /* Adds connection to white list if needed. On error, returns -1. */ static int add_to_white_list(struct hci_request *req, struct hci_conn_params *params, u8 *num_entries, bool allow_rpa) |
0857dd3be Bluetooth: Split ... |
692 693 |
{ struct hci_cp_le_add_to_white_list cp; |
dd522a742 Bluetooth: Handle... |
694 695 696 697 698 699 |
struct hci_dev *hdev = req->hdev; /* Already in white list */ if (hci_bdaddr_list_lookup(&hdev->le_white_list, ¶ms->addr, params->addr_type)) return 0; |
0857dd3be Bluetooth: Split ... |
700 |
|
dd522a742 Bluetooth: Handle... |
701 702 703 704 705 |
/* Select filter policy to accept all advertising */ if (*num_entries >= hdev->le_white_list_size) return -1; /* White list can not be used with RPAs */ |
c98d33579 Bluetooth: Fix: L... |
706 707 |
if (!allow_rpa && !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) && |
dd522a742 Bluetooth: Handle... |
708 709 710 711 712 |
hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type)) { return -1; } /* During suspend, only wakeable devices can be in whitelist */ |
a1fc7535e Bluetooth: Replac... |
713 714 |
if (hdev->suspended && !hci_conn_test_flag(HCI_CONN_FLAG_REMOTE_WAKEUP, params->current_flags)) |
dd522a742 Bluetooth: Handle... |
715 716 717 |
return 0; *num_entries += 1; |
0857dd3be Bluetooth: Split ... |
718 719 |
cp.bdaddr_type = params->addr_type; bacpy(&cp.bdaddr, ¶ms->addr); |
dd522a742 Bluetooth: Handle... |
720 721 |
bt_dev_dbg(hdev, "Add %pMR (0x%x) to whitelist", &cp.bdaddr, cp.bdaddr_type); |
0857dd3be Bluetooth: Split ... |
722 |
hci_req_add(req, HCI_OP_LE_ADD_TO_WHITE_LIST, sizeof(cp), &cp); |
dd522a742 Bluetooth: Handle... |
723 |
|
c98d33579 Bluetooth: Fix: L... |
724 725 |
if (use_ll_privacy(hdev) && hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY)) { |
0eee35bdf Bluetooth: Update... |
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 |
struct smp_irk *irk; irk = hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type); if (irk) { struct hci_cp_le_add_to_resolv_list cp; cp.bdaddr_type = params->addr_type; bacpy(&cp.bdaddr, ¶ms->addr); memcpy(cp.peer_irk, irk->val, 16); if (hci_dev_test_flag(hdev, HCI_PRIVACY)) memcpy(cp.local_irk, hdev->irk, 16); else memset(cp.local_irk, 0, 16); hci_req_add(req, HCI_OP_LE_ADD_TO_RESOLV_LIST, sizeof(cp), &cp); } } |
dd522a742 Bluetooth: Handle... |
746 |
return 0; |
0857dd3be Bluetooth: Split ... |
747 748 749 750 751 752 753 |
} static u8 update_white_list(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_conn_params *params; struct bdaddr_list *b; |
dd522a742 Bluetooth: Handle... |
754 755 756 757 758 759 760 761 |
u8 num_entries = 0; bool pend_conn, pend_report; /* We allow whitelisting even with RPAs in suspend. In the worst case, * we won't be able to wake from devices that use the privacy1.2 * features. Additionally, once we support privacy1.2 and IRK * offloading, we can update this to also check for those conditions. */ bool allow_rpa = hdev->suspended; |
0857dd3be Bluetooth: Split ... |
762 763 764 765 766 767 768 769 |
/* Go through the current white list programmed into the * controller one by one and check if that address is still * in the list of pending connections or list of devices to * report. If not present in either list, then queue the * command to remove it from the controller. */ list_for_each_entry(b, &hdev->le_white_list, list) { |
dd522a742 Bluetooth: Handle... |
770 771 772 773 774 775 776 777 778 |
pend_conn = hci_pend_le_action_lookup(&hdev->pend_le_conns, &b->bdaddr, b->bdaddr_type); pend_report = hci_pend_le_action_lookup(&hdev->pend_le_reports, &b->bdaddr, b->bdaddr_type); /* If the device is not likely to connect or report, * remove it from the whitelist. |
cff10ce7b Bluetooth: Fix in... |
779 |
*/ |
dd522a742 Bluetooth: Handle... |
780 781 |
if (!pend_conn && !pend_report) { del_from_white_list(req, &b->bdaddr, b->bdaddr_type); |
0857dd3be Bluetooth: Split ... |
782 783 |
continue; } |
dd522a742 Bluetooth: Handle... |
784 |
/* White list can not be used with RPAs */ |
c98d33579 Bluetooth: Fix: L... |
785 786 |
if (!allow_rpa && !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) && |
dd522a742 Bluetooth: Handle... |
787 |
hci_find_irk_by_addr(hdev, &b->bdaddr, b->bdaddr_type)) { |
cff10ce7b Bluetooth: Fix in... |
788 789 |
return 0x00; } |
0857dd3be Bluetooth: Split ... |
790 |
|
dd522a742 Bluetooth: Handle... |
791 |
num_entries++; |
0857dd3be Bluetooth: Split ... |
792 793 794 795 796 797 798 799 800 801 802 803 804 |
} /* Since all no longer valid white list entries have been * removed, walk through the list of pending connections * and ensure that any new device gets programmed into * the controller. * * If the list of the devices is larger than the list of * available white list entries in the controller, then * just abort and return filer policy value to not use the * white list. */ list_for_each_entry(params, &hdev->pend_le_conns, action) { |
dd522a742 Bluetooth: Handle... |
805 |
if (add_to_white_list(req, params, &num_entries, allow_rpa)) |
0857dd3be Bluetooth: Split ... |
806 |
return 0x00; |
0857dd3be Bluetooth: Split ... |
807 808 809 810 |
} /* After adding all new pending connections, walk through * the list of pending reports and also add these to the |
dd522a742 Bluetooth: Handle... |
811 |
* white list if there is still space. Abort if space runs out. |
0857dd3be Bluetooth: Split ... |
812 813 |
*/ list_for_each_entry(params, &hdev->pend_le_reports, action) { |
dd522a742 Bluetooth: Handle... |
814 |
if (add_to_white_list(req, params, &num_entries, allow_rpa)) |
0857dd3be Bluetooth: Split ... |
815 |
return 0x00; |
0857dd3be Bluetooth: Split ... |
816 |
} |
8208f5a9d Bluetooth: Update... |
817 818 |
/* Once the controller offloading of advertisement monitor is in place, * the if condition should include the support of MSFT extension |
51b64c476 Bluetooth: Use wh... |
819 820 |
* support. If suspend is ongoing, whitelist should be the default to * prevent waking by random advertisements. |
8208f5a9d Bluetooth: Update... |
821 |
*/ |
51b64c476 Bluetooth: Use wh... |
822 |
if (!idr_is_empty(&hdev->adv_monitors_idr) && !hdev->suspended) |
8208f5a9d Bluetooth: Update... |
823 |
return 0x00; |
0857dd3be Bluetooth: Split ... |
824 825 826 |
/* Select filter policy to use white list */ return 0x01; } |
82a37adee Bluetooth: Add su... |
827 828 829 830 |
static bool scan_use_rpa(struct hci_dev *hdev) { return hci_dev_test_flag(hdev, HCI_PRIVACY); } |
3baef8104 Bluetooth: Introd... |
831 |
static void hci_req_start_scan(struct hci_request *req, u8 type, u16 interval, |
e1d572357 Bluetooth: Config... |
832 833 |
u16 window, u8 own_addr_type, u8 filter_policy, bool addr_resolv) |
0857dd3be Bluetooth: Split ... |
834 |
{ |
a2344b9e3 Bluetooth: Use ex... |
835 |
struct hci_dev *hdev = req->hdev; |
3baef8104 Bluetooth: Introd... |
836 |
|
3a0377d99 Bluetooth: Don't ... |
837 838 839 840 |
if (hdev->scanning_paused) { bt_dev_dbg(hdev, "Scanning is paused for suspend"); return; } |
cbbdfa6f3 Bluetooth: Enable... |
841 842 843 |
if (use_ll_privacy(hdev) && hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) && addr_resolv) { |
e1d572357 Bluetooth: Config... |
844 |
u8 enable = 0x01; |
cbbdfa6f3 Bluetooth: Enable... |
845 |
|
e1d572357 Bluetooth: Config... |
846 847 |
hci_req_add(req, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE, 1, &enable); } |
a2344b9e3 Bluetooth: Use ex... |
848 849 850 851 852 853 854 |
/* Use ext scanning if set ext scan param and ext scan enable is * supported */ if (use_ext_scan(hdev)) { struct hci_cp_le_set_ext_scan_params *ext_param_cp; struct hci_cp_le_set_ext_scan_enable ext_enable_cp; struct hci_cp_le_scan_phy_params *phy_params; |
45bdd86ea Bluetooth: Set Sc... |
855 856 |
u8 data[sizeof(*ext_param_cp) + sizeof(*phy_params) * 2]; u32 plen; |
a2344b9e3 Bluetooth: Use ex... |
857 858 859 860 861 862 863 |
ext_param_cp = (void *)data; phy_params = (void *)ext_param_cp->data; memset(ext_param_cp, 0, sizeof(*ext_param_cp)); ext_param_cp->own_addr_type = own_addr_type; ext_param_cp->filter_policy = filter_policy; |
a2344b9e3 Bluetooth: Use ex... |
864 |
|
45bdd86ea Bluetooth: Set Sc... |
865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 |
plen = sizeof(*ext_param_cp); if (scan_1m(hdev) || scan_2m(hdev)) { ext_param_cp->scanning_phys |= LE_SCAN_PHY_1M; memset(phy_params, 0, sizeof(*phy_params)); phy_params->type = type; phy_params->interval = cpu_to_le16(interval); phy_params->window = cpu_to_le16(window); plen += sizeof(*phy_params); phy_params++; } if (scan_coded(hdev)) { ext_param_cp->scanning_phys |= LE_SCAN_PHY_CODED; memset(phy_params, 0, sizeof(*phy_params)); phy_params->type = type; phy_params->interval = cpu_to_le16(interval); phy_params->window = cpu_to_le16(window); plen += sizeof(*phy_params); phy_params++; } |
a2344b9e3 Bluetooth: Use ex... |
890 891 |
hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_PARAMS, |
45bdd86ea Bluetooth: Set Sc... |
892 |
plen, ext_param_cp); |
a2344b9e3 Bluetooth: Use ex... |
893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 |
memset(&ext_enable_cp, 0, sizeof(ext_enable_cp)); ext_enable_cp.enable = LE_SCAN_ENABLE; ext_enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_ENABLE, sizeof(ext_enable_cp), &ext_enable_cp); } else { struct hci_cp_le_set_scan_param param_cp; struct hci_cp_le_set_scan_enable enable_cp; memset(¶m_cp, 0, sizeof(param_cp)); param_cp.type = type; param_cp.interval = cpu_to_le16(interval); param_cp.window = cpu_to_le16(window); param_cp.own_address_type = own_addr_type; param_cp.filter_policy = filter_policy; hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), ¶m_cp); memset(&enable_cp, 0, sizeof(enable_cp)); enable_cp.enable = LE_SCAN_ENABLE; enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp), &enable_cp); } |
3baef8104 Bluetooth: Introd... |
919 |
} |
9a9373ffc Bluetooth: use th... |
920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 |
/* Returns true if an le connection is in the scanning state */ static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) { struct hci_conn_hash *h = &hdev->conn_hash; struct hci_conn *c; rcu_read_lock(); list_for_each_entry_rcu(c, &h->list, list) { if (c->type == LE_LINK && c->state == BT_CONNECT && test_bit(HCI_CONN_SCANNING, &c->flags)) { rcu_read_unlock(); return true; } } rcu_read_unlock(); return false; } |
e1d572357 Bluetooth: Config... |
940 941 942 943 |
/* Ensure to call hci_req_add_le_scan_disable() first to disable the * controller based address resolution to be able to reconfigure * resolving list. */ |
3baef8104 Bluetooth: Introd... |
944 945 |
void hci_req_add_le_passive_scan(struct hci_request *req) { |
0857dd3be Bluetooth: Split ... |
946 947 948 |
struct hci_dev *hdev = req->hdev; u8 own_addr_type; u8 filter_policy; |
aaebf8e60 Bluetooth: Fix in... |
949 |
u16 window, interval; |
e1d572357 Bluetooth: Config... |
950 951 |
/* Background scanning should run with address resolution */ bool addr_resolv = true; |
dd522a742 Bluetooth: Handle... |
952 953 954 955 956 |
if (hdev->scanning_paused) { bt_dev_dbg(hdev, "Scanning is paused for suspend"); return; } |
0857dd3be Bluetooth: Split ... |
957 958 959 960 961 962 963 |
/* Set require_privacy to false since no SCAN_REQ are send * during passive scanning. Not using an non-resolvable address * here is important so that peer devices using direct * advertising with our address will be correctly reported * by the controller. */ |
82a37adee Bluetooth: Add su... |
964 965 |
if (hci_update_random_address(req, false, scan_use_rpa(hdev), &own_addr_type)) |
0857dd3be Bluetooth: Split ... |
966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 |
return; /* Adding or removing entries from the white list must * happen before enabling scanning. The controller does * not allow white list modification while scanning. */ filter_policy = update_white_list(req); /* When the controller is using random resolvable addresses and * with that having LE privacy enabled, then controllers with * Extended Scanner Filter Policies support can now enable support * for handling directed advertising. * * So instead of using filter polices 0x00 (no whitelist) * and 0x01 (whitelist enabled) use the new filter policies * 0x02 (no whitelist) and 0x03 (whitelist enabled). */ |
d7a5a11d7 Bluetooth: Introd... |
983 |
if (hci_dev_test_flag(hdev, HCI_PRIVACY) && |
0857dd3be Bluetooth: Split ... |
984 985 |
(hdev->le_features[0] & HCI_LE_EXT_SCAN_POLICY)) filter_policy |= 0x02; |
dd522a742 Bluetooth: Handle... |
986 |
if (hdev->suspended) { |
10873f99c Bluetooth: centra... |
987 988 |
window = hdev->le_scan_window_suspend; interval = hdev->le_scan_int_suspend; |
9a9373ffc Bluetooth: use th... |
989 990 991 |
} else if (hci_is_le_conn_scanning(hdev)) { window = hdev->le_scan_window_connect; interval = hdev->le_scan_int_connect; |
291f0c550 Bluetooth: Set sc... |
992 993 994 |
} else if (hci_is_adv_monitoring(hdev)) { window = hdev->le_scan_window_adv_monitor; interval = hdev->le_scan_int_adv_monitor; |
dd522a742 Bluetooth: Handle... |
995 996 997 998 999 1000 1001 |
} else { window = hdev->le_scan_window; interval = hdev->le_scan_interval; } bt_dev_dbg(hdev, "LE passive scan with whitelist = %d", filter_policy); hci_req_start_scan(req, LE_SCAN_PASSIVE, interval, window, |
e1d572357 Bluetooth: Config... |
1002 |
own_addr_type, filter_policy, addr_resolv); |
0857dd3be Bluetooth: Split ... |
1003 |
} |
de181e887 Bluetooth: Impmle... |
1004 1005 1006 |
static u8 get_adv_instance_scan_rsp_len(struct hci_dev *hdev, u8 instance) { struct adv_info *adv_instance; |
492ad783a Bluetooth: Fix no... |
1007 |
/* Instance 0x00 always set local name */ |
de181e887 Bluetooth: Impmle... |
1008 |
if (instance == 0x00) |
492ad783a Bluetooth: Fix no... |
1009 |
return 1; |
de181e887 Bluetooth: Impmle... |
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 |
adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return 0; /* TODO: Take into account the "appearance" and "local-name" flags here. * These are currently being ignored as they are not supported. */ return adv_instance->scan_rsp_len; } |
4f40afc6c Bluetooth: Handle... |
1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 |
static void hci_req_clear_event_filter(struct hci_request *req) { struct hci_cp_set_event_filter f; memset(&f, 0, sizeof(f)); f.flt_type = HCI_FLT_CLEAR_ALL; hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &f); /* Update page scan state (since we may have modified it when setting * the event filter). */ __hci_req_update_scan(req); } static void hci_req_set_event_filter(struct hci_request *req) { |
7a92906f8 Bluetooth: Replac... |
1036 |
struct bdaddr_list_with_flags *b; |
4f40afc6c Bluetooth: Handle... |
1037 1038 |
struct hci_cp_set_event_filter f; struct hci_dev *hdev = req->hdev; |
7a92906f8 Bluetooth: Replac... |
1039 |
u8 scan = SCAN_DISABLED; |
4f40afc6c Bluetooth: Handle... |
1040 1041 1042 |
/* Always clear event filter when starting */ hci_req_clear_event_filter(req); |
7a92906f8 Bluetooth: Replac... |
1043 1044 1045 1046 |
list_for_each_entry(b, &hdev->whitelist, list) { if (!hci_conn_test_flag(HCI_CONN_FLAG_REMOTE_WAKEUP, b->current_flags)) continue; |
4f40afc6c Bluetooth: Handle... |
1047 1048 1049 1050 1051 1052 1053 1054 |
memset(&f, 0, sizeof(f)); bacpy(&f.addr_conn_flt.bdaddr, &b->bdaddr); f.flt_type = HCI_FLT_CONN_SETUP; f.cond_type = HCI_CONN_SETUP_ALLOW_BDADDR; f.addr_conn_flt.auto_accept = HCI_CONN_SETUP_AUTO_ON; bt_dev_dbg(hdev, "Adding event filters for %pMR", &b->bdaddr); hci_req_add(req, HCI_OP_SET_EVENT_FLT, sizeof(f), &f); |
7a92906f8 Bluetooth: Replac... |
1055 |
scan = SCAN_PAGE; |
4f40afc6c Bluetooth: Handle... |
1056 |
} |
4f40afc6c Bluetooth: Handle... |
1057 1058 |
hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); } |
dd522a742 Bluetooth: Handle... |
1059 1060 |
static void hci_req_config_le_suspend_scan(struct hci_request *req) { |
6fb00d4e9 Bluetooth: Check ... |
1061 1062 |
/* Before changing params disable scan if enabled */ if (hci_dev_test_flag(req->hdev, HCI_LE_SCAN)) |
5c49bcce5 Bluetooth: Enable... |
1063 |
hci_req_add_le_scan_disable(req, false); |
dd522a742 Bluetooth: Handle... |
1064 1065 1066 1067 1068 1069 1070 |
/* Configure params and enable scanning */ hci_req_add_le_passive_scan(req); /* Block suspend notifier on response */ set_bit(SUSPEND_SCAN_ENABLE, req->hdev->suspend_tasks); } |
53274477a Bluetooth: pause/... |
1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 |
static void cancel_adv_timeout(struct hci_dev *hdev) { if (hdev->adv_instance_timeout) { hdev->adv_instance_timeout = 0; cancel_delayed_work(&hdev->adv_instance_expire); } } /* This function requires the caller holds hdev->lock */ static void hci_suspend_adv_instances(struct hci_request *req) { bt_dev_dbg(req->hdev, "Suspending advertising instances"); /* Call to disable any advertisements active on the controller. * This will succeed even if no advertisements are configured. */ __hci_req_disable_advertising(req); /* If we are using software rotation, pause the loop */ if (!ext_adv_capable(req->hdev)) cancel_adv_timeout(req->hdev); } /* This function requires the caller holds hdev->lock */ static void hci_resume_adv_instances(struct hci_request *req) { struct adv_info *adv; bt_dev_dbg(req->hdev, "Resuming advertising instances"); if (ext_adv_capable(req->hdev)) { /* Call for each tracked instance to be re-enabled */ list_for_each_entry(adv, &req->hdev->adv_instances, list) { __hci_req_enable_ext_advertising(req, adv->instance); } } else { /* Schedule for most recent instance to be restarted and begin * the software rotation loop */ __hci_req_schedule_adv_instance(req, req->hdev->cur_adv_instance, true); } } |
4f40afc6c Bluetooth: Handle... |
1117 1118 1119 1120 1121 1122 1123 1124 1125 |
static void suspend_req_complete(struct hci_dev *hdev, u8 status, u16 opcode) { bt_dev_dbg(hdev, "Request complete opcode=0x%x, status=0x%x", opcode, status); if (test_and_clear_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks) || test_and_clear_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks)) { wake_up(&hdev->suspend_wait_q); } } |
9952d90ea Bluetooth: Handle... |
1126 1127 1128 |
/* Call with hci_dev_lock */ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) { |
4867bd007 Bluetooth: Pause ... |
1129 |
int old_state; |
4f40afc6c Bluetooth: Handle... |
1130 1131 1132 1133 |
struct hci_conn *conn; struct hci_request req; u8 page_scan; int disconnect_counter; |
9952d90ea Bluetooth: Handle... |
1134 1135 1136 1137 1138 1139 |
if (next == hdev->suspend_state) { bt_dev_dbg(hdev, "Same state before and after: %d", next); goto done; } hdev->suspend_state = next; |
4f40afc6c Bluetooth: Handle... |
1140 1141 1142 1143 1144 |
hci_req_init(&req, hdev); if (next == BT_SUSPEND_DISCONNECT) { /* Mark device as suspended */ hdev->suspended = true; |
4867bd007 Bluetooth: Pause ... |
1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 |
/* Pause discovery if not already stopped */ old_state = hdev->discovery.state; if (old_state != DISCOVERY_STOPPED) { set_bit(SUSPEND_PAUSE_DISCOVERY, hdev->suspend_tasks); hci_discovery_set_state(hdev, DISCOVERY_STOPPING); queue_work(hdev->req_workqueue, &hdev->discov_update); } hdev->discovery_paused = true; hdev->discovery_old_state = old_state; |
53274477a Bluetooth: pause/... |
1155 |
/* Stop directed advertising */ |
4867bd007 Bluetooth: Pause ... |
1156 1157 1158 1159 1160 1161 1162 |
old_state = hci_dev_test_flag(hdev, HCI_ADVERTISING); if (old_state) { set_bit(SUSPEND_PAUSE_ADVERTISING, hdev->suspend_tasks); cancel_delayed_work(&hdev->discov_off); queue_delayed_work(hdev->req_workqueue, &hdev->discov_off, 0); } |
53274477a Bluetooth: pause/... |
1163 1164 1165 |
/* Pause other advertisements */ if (hdev->adv_instance_cnt) hci_suspend_adv_instances(&req); |
4867bd007 Bluetooth: Pause ... |
1166 1167 |
hdev->advertising_paused = true; hdev->advertising_old_state = old_state; |
4f40afc6c Bluetooth: Handle... |
1168 1169 1170 |
/* Disable page scan */ page_scan = SCAN_DISABLED; hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &page_scan); |
6fb00d4e9 Bluetooth: Check ... |
1171 1172 |
/* Disable LE passive scan if enabled */ if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) |
5c49bcce5 Bluetooth: Enable... |
1173 |
hci_req_add_le_scan_disable(&req, false); |
dd522a742 Bluetooth: Handle... |
1174 |
|
4f40afc6c Bluetooth: Handle... |
1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 |
/* Mark task needing completion */ set_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks); /* Prevent disconnects from causing scanning to be re-enabled */ hdev->scanning_paused = true; /* Run commands before disconnecting */ hci_req_run(&req, suspend_req_complete); disconnect_counter = 0; /* Soft disconnect everything (power off) */ list_for_each_entry(conn, &hdev->conn_hash.list, list) { hci_disconnect(conn, HCI_ERROR_REMOTE_POWER_OFF); disconnect_counter++; } if (disconnect_counter > 0) { bt_dev_dbg(hdev, "Had %d disconnects. Will wait on them", disconnect_counter); set_bit(SUSPEND_DISCONNECTING, hdev->suspend_tasks); } |
0d2c9825e Bluetooth: Rename... |
1197 |
} else if (next == BT_SUSPEND_CONFIGURE_WAKE) { |
4f40afc6c Bluetooth: Handle... |
1198 1199 1200 1201 |
/* Unpause to take care of updating scanning params */ hdev->scanning_paused = false; /* Enable event filter for paired devices */ hci_req_set_event_filter(&req); |
dd522a742 Bluetooth: Handle... |
1202 1203 |
/* Enable passive scan at lower duty cycle */ hci_req_config_le_suspend_scan(&req); |
4f40afc6c Bluetooth: Handle... |
1204 1205 1206 1207 1208 1209 1210 1211 |
/* Pause scan changes again. */ hdev->scanning_paused = true; hci_req_run(&req, suspend_req_complete); } else { hdev->suspended = false; hdev->scanning_paused = false; hci_req_clear_event_filter(&req); |
dd522a742 Bluetooth: Handle... |
1212 1213 |
/* Reset passive/background scanning to normal */ hci_req_config_le_suspend_scan(&req); |
4867bd007 Bluetooth: Pause ... |
1214 |
|
53274477a Bluetooth: pause/... |
1215 |
/* Unpause directed advertising */ |
4867bd007 Bluetooth: Pause ... |
1216 1217 1218 1219 1220 1221 1222 1223 1224 |
hdev->advertising_paused = false; if (hdev->advertising_old_state) { set_bit(SUSPEND_UNPAUSE_ADVERTISING, hdev->suspend_tasks); hci_dev_set_flag(hdev, HCI_ADVERTISING); queue_work(hdev->req_workqueue, &hdev->discoverable_update); hdev->advertising_old_state = 0; } |
53274477a Bluetooth: pause/... |
1225 1226 1227 |
/* Resume other advertisements */ if (hdev->adv_instance_cnt) hci_resume_adv_instances(&req); |
4867bd007 Bluetooth: Pause ... |
1228 1229 1230 1231 1232 1233 1234 1235 |
/* Unpause discovery */ hdev->discovery_paused = false; if (hdev->discovery_old_state != DISCOVERY_STOPPED && hdev->discovery_old_state != DISCOVERY_STOPPING) { set_bit(SUSPEND_UNPAUSE_DISCOVERY, hdev->suspend_tasks); hci_discovery_set_state(hdev, DISCOVERY_STARTING); queue_work(hdev->req_workqueue, &hdev->discov_update); } |
4f40afc6c Bluetooth: Handle... |
1236 1237 1238 1239 |
hci_req_run(&req, suspend_req_complete); } hdev->suspend_state = next; |
9952d90ea Bluetooth: Handle... |
1240 1241 1242 1243 1244 |
done: clear_bit(SUSPEND_PREPARE_NOTIFIER, hdev->suspend_tasks); wake_up(&hdev->suspend_wait_q); } |
f22525700 Bluetooth: Move a... |
1245 1246 |
static u8 get_cur_adv_instance_scan_rsp_len(struct hci_dev *hdev) { |
cab054ab4 Bluetooth: Clean ... |
1247 |
u8 instance = hdev->cur_adv_instance; |
f22525700 Bluetooth: Move a... |
1248 |
struct adv_info *adv_instance; |
492ad783a Bluetooth: Fix no... |
1249 |
/* Instance 0x00 always set local name */ |
f22525700 Bluetooth: Move a... |
1250 |
if (instance == 0x00) |
492ad783a Bluetooth: Fix no... |
1251 |
return 1; |
f22525700 Bluetooth: Move a... |
1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 |
adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return 0; /* TODO: Take into account the "appearance" and "local-name" flags here. * These are currently being ignored as they are not supported. */ return adv_instance->scan_rsp_len; } void __hci_req_disable_advertising(struct hci_request *req) { |
45b7749f1 Bluetooth: Implem... |
1265 |
if (ext_adv_capable(req->hdev)) { |
37adf701d Bluetooth: Add pe... |
1266 |
__hci_req_disable_ext_adv_instance(req, 0x00); |
f22525700 Bluetooth: Move a... |
1267 |
|
45b7749f1 Bluetooth: Implem... |
1268 1269 1270 1271 1272 |
} else { u8 enable = 0x00; hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); } |
f22525700 Bluetooth: Move a... |
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 |
} static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance) { u32 flags; struct adv_info *adv_instance; if (instance == 0x00) { /* Instance 0 always manages the "Tx Power" and "Flags" * fields */ flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS; /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting * corresponds to the "connectable" instance flag. */ if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) flags |= MGMT_ADV_FLAG_CONNECTABLE; |
6a19cc8c8 Bluetooth: Fix se... |
1291 1292 1293 |
if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) flags |= MGMT_ADV_FLAG_LIMITED_DISCOV; else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) |
d43efbd0d Bluetooth: Fix ad... |
1294 |
flags |= MGMT_ADV_FLAG_DISCOV; |
f22525700 Bluetooth: Move a... |
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 |
return flags; } adv_instance = hci_find_adv_instance(hdev, instance); /* Return 0 when we got an invalid instance identifier. */ if (!adv_instance) return 0; return adv_instance->flags; } |
82a37adee Bluetooth: Add su... |
1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 |
static bool adv_use_rpa(struct hci_dev *hdev, uint32_t flags) { /* If privacy is not enabled don't use RPA */ if (!hci_dev_test_flag(hdev, HCI_PRIVACY)) return false; /* If basic privacy mode is enabled use RPA */ if (!hci_dev_test_flag(hdev, HCI_LIMITED_PRIVACY)) return true; /* If limited privacy mode is enabled don't use RPA if we're * both discoverable and bondable. */ if ((flags & MGMT_ADV_FLAG_DISCOV) && hci_dev_test_flag(hdev, HCI_BONDABLE)) return false; /* We're neither bondable nor discoverable in the limited * privacy mode, therefore use RPA. */ return true; } |
9e1e9f20c Bluetooth: Add su... |
1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 |
static bool is_advertising_allowed(struct hci_dev *hdev, bool connectable) { /* If there is no connection we are OK to advertise. */ if (hci_conn_num(hdev, LE_LINK) == 0) return true; /* Check le_states if there is any connection in slave role. */ if (hdev->conn_hash.le_num_slave > 0) { /* Slave connection state and non connectable mode bit 20. */ if (!connectable && !(hdev->le_states[2] & 0x10)) return false; /* Slave connection state and connectable mode bit 38 * and scannable bit 21. */ |
62ebdc25c Bluetooth: Fix in... |
1343 1344 |
if (connectable && (!(hdev->le_states[4] & 0x40) || !(hdev->le_states[2] & 0x20))) |
9e1e9f20c Bluetooth: Add su... |
1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 |
return false; } /* Check le_states if there is any connection in master role. */ if (hci_conn_num(hdev, LE_LINK) != hdev->conn_hash.le_num_slave) { /* Master connection state and non connectable mode bit 18. */ if (!connectable && !(hdev->le_states[2] & 0x02)) return false; /* Master connection state and connectable mode bit 35 and * scannable 19. */ |
62ebdc25c Bluetooth: Fix in... |
1357 |
if (connectable && (!(hdev->le_states[4] & 0x08) || |
9e1e9f20c Bluetooth: Add su... |
1358 1359 1360 1361 1362 1363 |
!(hdev->le_states[2] & 0x08))) return false; } return true; } |
f22525700 Bluetooth: Move a... |
1364 1365 1366 1367 1368 1369 |
void __hci_req_enable_advertising(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_le_set_adv_param cp; u8 own_addr_type, enable = 0x01; bool connectable; |
ad4a6795e Bluetooth: Add su... |
1370 |
u16 adv_min_interval, adv_max_interval; |
f22525700 Bluetooth: Move a... |
1371 |
u32 flags; |
9e1e9f20c Bluetooth: Add su... |
1372 1373 1374 1375 1376 1377 1378 1379 1380 |
flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance); /* If the "connectable" instance flag was not set, then choose between * ADV_IND and ADV_NONCONN_IND based on the global connectable setting. */ connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) || mgmt_get_connectable(hdev); if (!is_advertising_allowed(hdev, connectable)) |
f22525700 Bluetooth: Move a... |
1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 |
return; if (hci_dev_test_flag(hdev, HCI_LE_ADV)) __hci_req_disable_advertising(req); /* Clear the HCI_LE_ADV bit temporarily so that the * hci_update_random_address knows that it's safe to go ahead * and write a new random address. The flag will be set back on * as soon as the SET_ADV_ENABLE HCI command completes. */ hci_dev_clear_flag(hdev, HCI_LE_ADV); |
f22525700 Bluetooth: Move a... |
1392 1393 1394 1395 |
/* Set require_privacy to true only when non-connectable * advertising is used. In that case it is fine to use a * non-resolvable private address. */ |
82a37adee Bluetooth: Add su... |
1396 1397 1398 |
if (hci_update_random_address(req, !connectable, adv_use_rpa(hdev, flags), &own_addr_type) < 0) |
f22525700 Bluetooth: Move a... |
1399 1400 1401 |
return; memset(&cp, 0, sizeof(cp)); |
f22525700 Bluetooth: Move a... |
1402 |
|
ad4a6795e Bluetooth: Add su... |
1403 |
if (connectable) { |
f22525700 Bluetooth: Move a... |
1404 |
cp.type = LE_ADV_IND; |
f22525700 Bluetooth: Move a... |
1405 |
|
ad4a6795e Bluetooth: Add su... |
1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 |
adv_min_interval = hdev->le_adv_min_interval; adv_max_interval = hdev->le_adv_max_interval; } else { if (get_cur_adv_instance_scan_rsp_len(hdev)) cp.type = LE_ADV_SCAN_IND; else cp.type = LE_ADV_NONCONN_IND; if (!hci_dev_test_flag(hdev, HCI_DISCOVERABLE) || hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) { adv_min_interval = DISCOV_LE_FAST_ADV_INT_MIN; adv_max_interval = DISCOV_LE_FAST_ADV_INT_MAX; } else { adv_min_interval = hdev->le_adv_min_interval; adv_max_interval = hdev->le_adv_max_interval; } } cp.min_interval = cpu_to_le16(adv_min_interval); cp.max_interval = cpu_to_le16(adv_max_interval); |
f22525700 Bluetooth: Move a... |
1426 1427 1428 1429 1430 1431 1432 |
cp.own_address_type = own_addr_type; cp.channel_map = hdev->le_adv_channel_map; hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp); hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); } |
f61851f64 Bluetooth: Fix ap... |
1433 |
u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len) |
f22525700 Bluetooth: Move a... |
1434 |
{ |
cecbf3e93 Bluetooth: Fix lo... |
1435 |
size_t short_len; |
f61851f64 Bluetooth: Fix ap... |
1436 |
size_t complete_len; |
f22525700 Bluetooth: Move a... |
1437 |
|
f61851f64 Bluetooth: Fix ap... |
1438 1439 |
/* no space left for name (+ NULL + type + len) */ if ((HCI_MAX_AD_LENGTH - ad_len) < HCI_MAX_SHORT_NAME_LENGTH + 3) |
cecbf3e93 Bluetooth: Fix lo... |
1440 |
return ad_len; |
f22525700 Bluetooth: Move a... |
1441 |
|
f61851f64 Bluetooth: Fix ap... |
1442 1443 1444 |
/* use complete name if present and fits */ complete_len = strlen(hdev->dev_name); if (complete_len && complete_len <= HCI_MAX_SHORT_NAME_LENGTH) |
1b4220666 Bluetooth: Refact... |
1445 |
return eir_append_data(ptr, ad_len, EIR_NAME_COMPLETE, |
f61851f64 Bluetooth: Fix ap... |
1446 |
hdev->dev_name, complete_len + 1); |
cecbf3e93 Bluetooth: Fix lo... |
1447 |
|
f61851f64 Bluetooth: Fix ap... |
1448 1449 1450 |
/* use short name if present */ short_len = strlen(hdev->short_name); if (short_len) |
1b4220666 Bluetooth: Refact... |
1451 |
return eir_append_data(ptr, ad_len, EIR_NAME_SHORT, |
f61851f64 Bluetooth: Fix ap... |
1452 |
hdev->short_name, short_len + 1); |
cecbf3e93 Bluetooth: Fix lo... |
1453 |
|
f61851f64 Bluetooth: Fix ap... |
1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 |
/* use shortened full name if present, we already know that name * is longer then HCI_MAX_SHORT_NAME_LENGTH */ if (complete_len) { u8 name[HCI_MAX_SHORT_NAME_LENGTH + 1]; memcpy(name, hdev->dev_name, HCI_MAX_SHORT_NAME_LENGTH); name[HCI_MAX_SHORT_NAME_LENGTH] = '\0'; return eir_append_data(ptr, ad_len, EIR_NAME_SHORT, name, sizeof(name)); |
f22525700 Bluetooth: Move a... |
1465 1466 1467 1468 |
} return ad_len; } |
1b4220666 Bluetooth: Refact... |
1469 1470 1471 1472 |
static u8 append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len) { return eir_append_le16(ptr, ad_len, EIR_APPEARANCE, hdev->appearance); } |
7c295c480 Bluetooth: Add su... |
1473 1474 |
static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr) { |
7ddb30c74 Bluetooth: Add ap... |
1475 1476 1477 |
u8 scan_rsp_len = 0; if (hdev->appearance) { |
1b4220666 Bluetooth: Refact... |
1478 |
scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len); |
7ddb30c74 Bluetooth: Add ap... |
1479 |
} |
1b4220666 Bluetooth: Refact... |
1480 |
return append_local_name(hdev, ptr, scan_rsp_len); |
7c295c480 Bluetooth: Add su... |
1481 |
} |
f22525700 Bluetooth: Move a... |
1482 1483 1484 1485 |
static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance, u8 *ptr) { struct adv_info *adv_instance; |
7c295c480 Bluetooth: Add su... |
1486 1487 |
u32 instance_flags; u8 scan_rsp_len = 0; |
f22525700 Bluetooth: Move a... |
1488 1489 1490 1491 |
adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return 0; |
7c295c480 Bluetooth: Add su... |
1492 |
instance_flags = adv_instance->flags; |
c4960ecf2 Bluetooth: Add su... |
1493 |
if ((instance_flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance) { |
1b4220666 Bluetooth: Refact... |
1494 |
scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len); |
c4960ecf2 Bluetooth: Add su... |
1495 |
} |
1b4220666 Bluetooth: Refact... |
1496 |
memcpy(&ptr[scan_rsp_len], adv_instance->scan_rsp_data, |
f22525700 Bluetooth: Move a... |
1497 |
adv_instance->scan_rsp_len); |
7c295c480 Bluetooth: Add su... |
1498 |
scan_rsp_len += adv_instance->scan_rsp_len; |
7c295c480 Bluetooth: Add su... |
1499 1500 1501 1502 1503 |
if (instance_flags & MGMT_ADV_FLAG_LOCAL_NAME) scan_rsp_len = append_local_name(hdev, ptr, scan_rsp_len); return scan_rsp_len; |
f22525700 Bluetooth: Move a... |
1504 |
} |
cab054ab4 Bluetooth: Clean ... |
1505 |
void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance) |
f22525700 Bluetooth: Move a... |
1506 1507 |
{ struct hci_dev *hdev = req->hdev; |
f22525700 Bluetooth: Move a... |
1508 1509 1510 1511 |
u8 len; if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED)) return; |
a0fb3726b Bluetooth: Use Se... |
1512 1513 |
if (ext_adv_capable(hdev)) { struct hci_cp_le_set_ext_scan_rsp_data cp; |
f22525700 Bluetooth: Move a... |
1514 |
|
a0fb3726b Bluetooth: Use Se... |
1515 |
memset(&cp, 0, sizeof(cp)); |
f22525700 Bluetooth: Move a... |
1516 |
|
6baf8a6af Bluetooth: Set ex... |
1517 1518 1519 1520 |
/* Extended scan response data doesn't allow a response to be * set if the instance isn't scannable. */ if (get_adv_instance_scan_rsp_len(hdev, instance)) |
a0fb3726b Bluetooth: Use Se... |
1521 1522 1523 |
len = create_instance_scan_rsp_data(hdev, instance, cp.data); else |
6baf8a6af Bluetooth: Set ex... |
1524 |
len = 0; |
a0fb3726b Bluetooth: Use Se... |
1525 1526 1527 1528 1529 1530 1531 |
if (hdev->scan_rsp_data_len == len && !memcmp(cp.data, hdev->scan_rsp_data, len)) return; memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data)); hdev->scan_rsp_data_len = len; |
eaa7b7228 Bluetooth: Fix ad... |
1532 |
cp.handle = instance; |
a0fb3726b Bluetooth: Use Se... |
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 |
cp.length = len; cp.operation = LE_SET_ADV_DATA_OP_COMPLETE; cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG; hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_RSP_DATA, sizeof(cp), &cp); } else { struct hci_cp_le_set_scan_rsp_data cp; memset(&cp, 0, sizeof(cp)); if (instance) len = create_instance_scan_rsp_data(hdev, instance, cp.data); else len = create_default_scan_rsp_data(hdev, cp.data); if (hdev->scan_rsp_data_len == len && !memcmp(cp.data, hdev->scan_rsp_data, len)) return; |
f22525700 Bluetooth: Move a... |
1553 |
|
a0fb3726b Bluetooth: Use Se... |
1554 1555 |
memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data)); hdev->scan_rsp_data_len = len; |
f22525700 Bluetooth: Move a... |
1556 |
|
a0fb3726b Bluetooth: Use Se... |
1557 |
cp.length = len; |
f22525700 Bluetooth: Move a... |
1558 |
|
a0fb3726b Bluetooth: Use Se... |
1559 1560 |
hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp); } |
f22525700 Bluetooth: Move a... |
1561 |
} |
f22525700 Bluetooth: Move a... |
1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 |
static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr) { struct adv_info *adv_instance = NULL; u8 ad_len = 0, flags = 0; u32 instance_flags; /* Return 0 when the current instance identifier is invalid. */ if (instance) { adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return 0; } instance_flags = get_adv_instance_flags(hdev, instance); |
6012b9346 Bluetooth: Fix ad... |
1576 1577 1578 1579 1580 1581 1582 |
/* If instance already has the flags set skip adding it once * again. */ if (adv_instance && eir_get_data(adv_instance->adv_data, adv_instance->adv_data_len, EIR_FLAGS, NULL)) goto skip_flags; |
f22525700 Bluetooth: Move a... |
1583 1584 1585 1586 1587 1588 1589 1590 |
/* The Add Advertising command allows userspace to set both the general * and limited discoverable flags. */ if (instance_flags & MGMT_ADV_FLAG_DISCOV) flags |= LE_AD_GENERAL; if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV) flags |= LE_AD_LIMITED; |
f18ba58f5 Bluetooth: Fix se... |
1591 1592 |
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) flags |= LE_AD_NO_BREDR; |
f22525700 Bluetooth: Move a... |
1593 1594 1595 1596 1597 1598 |
if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) { /* If a discovery flag wasn't provided, simply use the global * settings. */ if (!flags) flags |= mgmt_get_adv_discov_flags(hdev); |
f22525700 Bluetooth: Move a... |
1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 |
/* If flags would still be empty, then there is no need to * include the "Flags" AD field". */ if (flags) { ptr[0] = 0x02; ptr[1] = EIR_FLAGS; ptr[2] = flags; ad_len += 3; ptr += 3; } } |
6012b9346 Bluetooth: Fix ad... |
1611 |
skip_flags: |
f22525700 Bluetooth: Move a... |
1612 1613 1614 1615 1616 1617 |
if (adv_instance) { memcpy(ptr, adv_instance->adv_data, adv_instance->adv_data_len); ad_len += adv_instance->adv_data_len; ptr += adv_instance->adv_data_len; } |
de181e887 Bluetooth: Impmle... |
1618 1619 |
if (instance_flags & MGMT_ADV_FLAG_TX_POWER) { s8 adv_tx_power; |
f22525700 Bluetooth: Move a... |
1620 |
|
de181e887 Bluetooth: Impmle... |
1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 |
if (ext_adv_capable(hdev)) { if (adv_instance) adv_tx_power = adv_instance->tx_power; else adv_tx_power = hdev->adv_tx_power; } else { adv_tx_power = hdev->adv_tx_power; } /* Provide Tx Power only if we can provide a valid value for it */ if (adv_tx_power != HCI_TX_POWER_INVALID) { ptr[0] = 0x02; ptr[1] = EIR_TX_POWER; ptr[2] = (u8)adv_tx_power; ad_len += 3; ptr += 3; } |
f22525700 Bluetooth: Move a... |
1639 1640 1641 1642 |
} return ad_len; } |
cab054ab4 Bluetooth: Clean ... |
1643 |
void __hci_req_update_adv_data(struct hci_request *req, u8 instance) |
f22525700 Bluetooth: Move a... |
1644 1645 |
{ struct hci_dev *hdev = req->hdev; |
f22525700 Bluetooth: Move a... |
1646 1647 1648 1649 |
u8 len; if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED)) return; |
a0fb3726b Bluetooth: Use Se... |
1650 1651 |
if (ext_adv_capable(hdev)) { struct hci_cp_le_set_ext_adv_data cp; |
f22525700 Bluetooth: Move a... |
1652 |
|
a0fb3726b Bluetooth: Use Se... |
1653 |
memset(&cp, 0, sizeof(cp)); |
f22525700 Bluetooth: Move a... |
1654 |
|
a0fb3726b Bluetooth: Use Se... |
1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 |
len = create_instance_adv_data(hdev, instance, cp.data); /* There's nothing to do if the data hasn't changed */ if (hdev->adv_data_len == len && memcmp(cp.data, hdev->adv_data, len) == 0) return; memcpy(hdev->adv_data, cp.data, sizeof(cp.data)); hdev->adv_data_len = len; cp.length = len; |
eaa7b7228 Bluetooth: Fix ad... |
1666 |
cp.handle = instance; |
a0fb3726b Bluetooth: Use Se... |
1667 1668 |
cp.operation = LE_SET_ADV_DATA_OP_COMPLETE; cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG; |
f22525700 Bluetooth: Move a... |
1669 |
|
a0fb3726b Bluetooth: Use Se... |
1670 1671 1672 1673 1674 |
hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_DATA, sizeof(cp), &cp); } else { struct hci_cp_le_set_adv_data cp; memset(&cp, 0, sizeof(cp)); |
f22525700 Bluetooth: Move a... |
1675 |
|
a0fb3726b Bluetooth: Use Se... |
1676 1677 1678 1679 1680 1681 |
len = create_instance_adv_data(hdev, instance, cp.data); /* There's nothing to do if the data hasn't changed */ if (hdev->adv_data_len == len && memcmp(cp.data, hdev->adv_data, len) == 0) return; |
f22525700 Bluetooth: Move a... |
1682 |
|
a0fb3726b Bluetooth: Use Se... |
1683 1684 1685 1686 1687 1688 1689 |
memcpy(hdev->adv_data, cp.data, sizeof(cp.data)); hdev->adv_data_len = len; cp.length = len; hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp); } |
f22525700 Bluetooth: Move a... |
1690 |
} |
cab054ab4 Bluetooth: Clean ... |
1691 |
int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance) |
f22525700 Bluetooth: Move a... |
1692 1693 1694 1695 1696 1697 1698 1699 |
{ struct hci_request req; hci_req_init(&req, hdev); __hci_req_update_adv_data(&req, instance); return hci_req_run(&req, NULL); } |
5c49bcce5 Bluetooth: Enable... |
1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 |
static void enable_addr_resolution_complete(struct hci_dev *hdev, u8 status, u16 opcode) { BT_DBG("%s status %u", hdev->name, status); } void hci_req_disable_address_resolution(struct hci_dev *hdev) { struct hci_request req; __u8 enable = 0x00; if (!use_ll_privacy(hdev) && !hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) return; hci_req_init(&req, hdev); hci_req_add(&req, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE, 1, &enable); hci_req_run(&req, enable_addr_resolution_complete); } |
f22525700 Bluetooth: Move a... |
1721 1722 1723 1724 1725 1726 1727 1728 |
static void adv_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode) { BT_DBG("%s status %u", hdev->name, status); } void hci_req_reenable_advertising(struct hci_dev *hdev) { struct hci_request req; |
f22525700 Bluetooth: Move a... |
1729 1730 |
if (!hci_dev_test_flag(hdev, HCI_ADVERTISING) && |
17fd08ffb Bluetooth: Remove... |
1731 |
list_empty(&hdev->adv_instances)) |
f22525700 Bluetooth: Move a... |
1732 |
return; |
f22525700 Bluetooth: Move a... |
1733 |
hci_req_init(&req, hdev); |
cab054ab4 Bluetooth: Clean ... |
1734 1735 1736 |
if (hdev->cur_adv_instance) { __hci_req_schedule_adv_instance(&req, hdev->cur_adv_instance, true); |
f22525700 Bluetooth: Move a... |
1737 |
} else { |
de181e887 Bluetooth: Impmle... |
1738 1739 1740 1741 1742 1743 1744 |
if (ext_adv_capable(hdev)) { __hci_req_start_ext_adv(&req, 0x00); } else { __hci_req_update_adv_data(&req, 0x00); __hci_req_update_scan_rsp_data(&req, 0x00); __hci_req_enable_advertising(&req); } |
f22525700 Bluetooth: Move a... |
1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 |
} hci_req_run(&req, adv_enable_complete); } static void adv_timeout_expire(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, adv_instance_expire.work); struct hci_request req; u8 instance; BT_DBG("%s", hdev->name); hci_dev_lock(hdev); hdev->adv_instance_timeout = 0; |
cab054ab4 Bluetooth: Clean ... |
1763 |
instance = hdev->cur_adv_instance; |
f22525700 Bluetooth: Move a... |
1764 1765 1766 1767 |
if (instance == 0x00) goto unlock; hci_req_init(&req, hdev); |
37d3a1fab Bluetooth: mgmt: ... |
1768 |
hci_req_clear_adv_instance(hdev, NULL, &req, instance, false); |
f22525700 Bluetooth: Move a... |
1769 1770 1771 |
if (list_empty(&hdev->adv_instances)) __hci_req_disable_advertising(&req); |
550a8ca76 Bluetooth: Remove... |
1772 |
hci_req_run(&req, NULL); |
f22525700 Bluetooth: Move a... |
1773 1774 1775 1776 |
unlock: hci_dev_unlock(hdev); } |
a73c046a2 Bluetooth: Implem... |
1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 |
int hci_get_random_address(struct hci_dev *hdev, bool require_privacy, bool use_rpa, struct adv_info *adv_instance, u8 *own_addr_type, bdaddr_t *rand_addr) { int err; bacpy(rand_addr, BDADDR_ANY); /* If privacy is enabled use a resolvable private address. If * current RPA has expired then generate a new one. */ if (use_rpa) { int to; |
c0ee0644d Bluetooth: Fix up... |
1790 1791 1792 1793 1794 1795 1796 |
/* If Controller supports LL Privacy use own address type is * 0x03 */ if (use_ll_privacy(hdev)) *own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED; else *own_addr_type = ADDR_LE_DEV_RANDOM; |
a73c046a2 Bluetooth: Implem... |
1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 |
if (adv_instance) { if (!adv_instance->rpa_expired && !bacmp(&adv_instance->random_addr, &hdev->rpa)) return 0; adv_instance->rpa_expired = false; } else { if (!hci_dev_test_and_clear_flag(hdev, HCI_RPA_EXPIRED) && !bacmp(&hdev->random_addr, &hdev->rpa)) return 0; } err = smp_generate_rpa(hdev, hdev->irk, &hdev->rpa); if (err < 0) { |
00b383b8a Bluetooth: Use bt... |
1812 |
bt_dev_err(hdev, "failed to generate new RPA"); |
a73c046a2 Bluetooth: Implem... |
1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 |
return err; } bacpy(rand_addr, &hdev->rpa); to = msecs_to_jiffies(hdev->rpa_timeout * 1000); if (adv_instance) queue_delayed_work(hdev->workqueue, &adv_instance->rpa_expired_cb, to); else queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to); return 0; } /* In case of required privacy without resolvable private address, * use an non-resolvable private address. This is useful for * non-connectable advertising. */ if (require_privacy) { bdaddr_t nrpa; while (true) { /* The non-resolvable private address is generated * from random six bytes with the two most significant * bits cleared. */ get_random_bytes(&nrpa, 6); nrpa.b[5] &= 0x3f; /* The non-resolvable private address shall not be * equal to the public address. */ if (bacmp(&hdev->bdaddr, &nrpa)) break; } *own_addr_type = ADDR_LE_DEV_RANDOM; bacpy(rand_addr, &nrpa); return 0; } /* No privacy so use a public address. */ *own_addr_type = ADDR_LE_DEV_PUBLIC; return 0; } |
45b7749f1 Bluetooth: Implem... |
1862 1863 1864 1865 |
void __hci_req_clear_ext_adv_sets(struct hci_request *req) { hci_req_add(req, HCI_OP_LE_CLEAR_ADV_SETS, 0, NULL); } |
a0fb3726b Bluetooth: Use Se... |
1866 |
int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance) |
de181e887 Bluetooth: Impmle... |
1867 1868 1869 1870 1871 |
{ struct hci_cp_le_set_ext_adv_params cp; struct hci_dev *hdev = req->hdev; bool connectable; u32 flags; |
a73c046a2 Bluetooth: Implem... |
1872 1873 1874 1875 |
bdaddr_t random_addr; u8 own_addr_type; int err; struct adv_info *adv_instance; |
85a721a8b Bluetooth: Implem... |
1876 |
bool secondary_adv; |
de181e887 Bluetooth: Impmle... |
1877 |
|
a73c046a2 Bluetooth: Implem... |
1878 1879 1880 1881 1882 1883 1884 |
if (instance > 0) { adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return -EINVAL; } else { adv_instance = NULL; } |
de181e887 Bluetooth: Impmle... |
1885 1886 1887 1888 1889 1890 1891 |
flags = get_adv_instance_flags(hdev, instance); /* If the "connectable" instance flag was not set, then choose between * ADV_IND and ADV_NONCONN_IND based on the global connectable setting. */ connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) || mgmt_get_connectable(hdev); |
75edd1f2f Bluetooth: clean ... |
1892 |
if (!is_advertising_allowed(hdev, connectable)) |
de181e887 Bluetooth: Impmle... |
1893 |
return -EPERM; |
a73c046a2 Bluetooth: Implem... |
1894 1895 1896 1897 1898 1899 1900 1901 1902 |
/* Set require_privacy to true only when non-connectable * advertising is used. In that case it is fine to use a * non-resolvable private address. */ err = hci_get_random_address(hdev, !connectable, adv_use_rpa(hdev, flags), adv_instance, &own_addr_type, &random_addr); if (err < 0) return err; |
de181e887 Bluetooth: Impmle... |
1903 |
memset(&cp, 0, sizeof(cp)); |
5cbd3ebde Bluetooth: use co... |
1904 1905 1906 |
/* In ext adv set param interval is 3 octets */ hci_cpu_to_le24(hdev->le_adv_min_interval, cp.min_interval); hci_cpu_to_le24(hdev->le_adv_max_interval, cp.max_interval); |
de181e887 Bluetooth: Impmle... |
1907 |
|
85a721a8b Bluetooth: Implem... |
1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 |
secondary_adv = (flags & MGMT_ADV_FLAG_SEC_MASK); if (connectable) { if (secondary_adv) cp.evt_properties = cpu_to_le16(LE_EXT_ADV_CONN_IND); else cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_IND); } else if (get_adv_instance_scan_rsp_len(hdev, instance)) { if (secondary_adv) cp.evt_properties = cpu_to_le16(LE_EXT_ADV_SCAN_IND); else cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_SCAN_IND); } else { if (secondary_adv) cp.evt_properties = cpu_to_le16(LE_EXT_ADV_NON_CONN_IND); else cp.evt_properties = cpu_to_le16(LE_LEGACY_NONCONN_IND); } |
de181e887 Bluetooth: Impmle... |
1926 |
|
a73c046a2 Bluetooth: Implem... |
1927 |
cp.own_addr_type = own_addr_type; |
de181e887 Bluetooth: Impmle... |
1928 1929 |
cp.channel_map = hdev->le_adv_channel_map; cp.tx_power = 127; |
1d0fac2c3 Bluetooth: Use co... |
1930 |
cp.handle = instance; |
de181e887 Bluetooth: Impmle... |
1931 |
|
85a721a8b Bluetooth: Implem... |
1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 |
if (flags & MGMT_ADV_FLAG_SEC_2M) { cp.primary_phy = HCI_ADV_PHY_1M; cp.secondary_phy = HCI_ADV_PHY_2M; } else if (flags & MGMT_ADV_FLAG_SEC_CODED) { cp.primary_phy = HCI_ADV_PHY_CODED; cp.secondary_phy = HCI_ADV_PHY_CODED; } else { /* In all other cases use 1M */ cp.primary_phy = HCI_ADV_PHY_1M; cp.secondary_phy = HCI_ADV_PHY_1M; } |
de181e887 Bluetooth: Impmle... |
1943 |
hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_PARAMS, sizeof(cp), &cp); |
a73c046a2 Bluetooth: Implem... |
1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 |
if (own_addr_type == ADDR_LE_DEV_RANDOM && bacmp(&random_addr, BDADDR_ANY)) { struct hci_cp_le_set_adv_set_rand_addr cp; /* Check if random address need to be updated */ if (adv_instance) { if (!bacmp(&random_addr, &adv_instance->random_addr)) return 0; } else { if (!bacmp(&random_addr, &hdev->random_addr)) return 0; } memset(&cp, 0, sizeof(cp)); |
eaa7b7228 Bluetooth: Fix ad... |
1958 |
cp.handle = instance; |
a73c046a2 Bluetooth: Implem... |
1959 1960 1961 1962 1963 1964 |
bacpy(&cp.bdaddr, &random_addr); hci_req_add(req, HCI_OP_LE_SET_ADV_SET_RAND_ADDR, sizeof(cp), &cp); } |
de181e887 Bluetooth: Impmle... |
1965 1966 |
return 0; } |
1d0fac2c3 Bluetooth: Use co... |
1967 |
int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance) |
de181e887 Bluetooth: Impmle... |
1968 |
{ |
1d0fac2c3 Bluetooth: Use co... |
1969 |
struct hci_dev *hdev = req->hdev; |
de181e887 Bluetooth: Impmle... |
1970 1971 1972 |
struct hci_cp_le_set_ext_adv_enable *cp; struct hci_cp_ext_adv_set *adv_set; u8 data[sizeof(*cp) + sizeof(*adv_set) * 1]; |
1d0fac2c3 Bluetooth: Use co... |
1973 1974 1975 1976 1977 1978 1979 1980 1981 |
struct adv_info *adv_instance; if (instance > 0) { adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return -EINVAL; } else { adv_instance = NULL; } |
de181e887 Bluetooth: Impmle... |
1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 |
cp = (void *) data; adv_set = (void *) cp->data; memset(cp, 0, sizeof(*cp)); cp->enable = 0x01; cp->num_of_sets = 0x01; memset(adv_set, 0, sizeof(*adv_set)); |
1d0fac2c3 Bluetooth: Use co... |
1992 1993 1994 1995 1996 1997 |
adv_set->handle = instance; /* Set duration per instance since controller is responsible for * scheduling it. */ if (adv_instance && adv_instance->duration) { |
10bbffa3e Bluetooth: Fix us... |
1998 |
u16 duration = adv_instance->timeout * MSEC_PER_SEC; |
1d0fac2c3 Bluetooth: Use co... |
1999 2000 2001 2002 |
/* Time = N * 10 ms */ adv_set->duration = cpu_to_le16(duration / 10); } |
de181e887 Bluetooth: Impmle... |
2003 2004 2005 2006 |
hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_ENABLE, sizeof(*cp) + sizeof(*adv_set) * cp->num_of_sets, data); |
1d0fac2c3 Bluetooth: Use co... |
2007 2008 |
return 0; |
de181e887 Bluetooth: Impmle... |
2009 |
} |
37adf701d Bluetooth: Add pe... |
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 |
int __hci_req_disable_ext_adv_instance(struct hci_request *req, u8 instance) { struct hci_dev *hdev = req->hdev; struct hci_cp_le_set_ext_adv_enable *cp; struct hci_cp_ext_adv_set *adv_set; u8 data[sizeof(*cp) + sizeof(*adv_set) * 1]; u8 req_size; /* If request specifies an instance that doesn't exist, fail */ if (instance > 0 && !hci_find_adv_instance(hdev, instance)) return -EINVAL; memset(data, 0, sizeof(data)); cp = (void *)data; adv_set = (void *)cp->data; /* Instance 0x00 indicates all advertising instances will be disabled */ cp->num_of_sets = !!instance; cp->enable = 0x00; adv_set->handle = instance; req_size = sizeof(*cp) + sizeof(*adv_set) * cp->num_of_sets; hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_ENABLE, req_size, data); return 0; } int __hci_req_remove_ext_adv_instance(struct hci_request *req, u8 instance) { struct hci_dev *hdev = req->hdev; /* If request specifies an instance that doesn't exist, fail */ if (instance > 0 && !hci_find_adv_instance(hdev, instance)) return -EINVAL; hci_req_add(req, HCI_OP_LE_REMOVE_ADV_SET, sizeof(instance), &instance); return 0; } |
de181e887 Bluetooth: Impmle... |
2051 2052 |
int __hci_req_start_ext_adv(struct hci_request *req, u8 instance) { |
45b7749f1 Bluetooth: Implem... |
2053 |
struct hci_dev *hdev = req->hdev; |
37adf701d Bluetooth: Add pe... |
2054 |
struct adv_info *adv_instance = hci_find_adv_instance(hdev, instance); |
de181e887 Bluetooth: Impmle... |
2055 |
int err; |
37adf701d Bluetooth: Add pe... |
2056 2057 2058 2059 2060 |
/* If instance isn't pending, the chip knows about it, and it's safe to * disable */ if (adv_instance && !adv_instance->pending) __hci_req_disable_ext_adv_instance(req, instance); |
45b7749f1 Bluetooth: Implem... |
2061 |
|
de181e887 Bluetooth: Impmle... |
2062 2063 2064 |
err = __hci_req_setup_ext_adv_instance(req, instance); if (err < 0) return err; |
a0fb3726b Bluetooth: Use Se... |
2065 |
__hci_req_update_scan_rsp_data(req, instance); |
1d0fac2c3 Bluetooth: Use co... |
2066 |
__hci_req_enable_ext_advertising(req, instance); |
de181e887 Bluetooth: Impmle... |
2067 2068 2069 |
return 0; } |
f22525700 Bluetooth: Move a... |
2070 2071 2072 2073 2074 2075 2076 2077 |
int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance, bool force) { struct hci_dev *hdev = req->hdev; struct adv_info *adv_instance = NULL; u16 timeout; if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || |
17fd08ffb Bluetooth: Remove... |
2078 |
list_empty(&hdev->adv_instances)) |
f22525700 Bluetooth: Move a... |
2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 |
return -EPERM; if (hdev->adv_instance_timeout) return -EBUSY; adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return -ENOENT; /* A zero timeout means unlimited advertising. As long as there is * only one instance, duration should be ignored. We still set a timeout * in case further instances are being added later on. * * If the remaining lifetime of the instance is more than the duration * then the timeout corresponds to the duration, otherwise it will be * reduced to the remaining instance lifetime. */ if (adv_instance->timeout == 0 || adv_instance->duration <= adv_instance->remaining_time) timeout = adv_instance->duration; else timeout = adv_instance->remaining_time; /* The remaining time is being reduced unless the instance is being * advertised without time limit. */ if (adv_instance->timeout) adv_instance->remaining_time = adv_instance->remaining_time - timeout; |
1d0fac2c3 Bluetooth: Use co... |
2108 2109 2110 2111 |
/* Only use work for scheduling instances with legacy advertising */ if (!ext_adv_capable(hdev)) { hdev->adv_instance_timeout = timeout; queue_delayed_work(hdev->req_workqueue, |
f22525700 Bluetooth: Move a... |
2112 2113 |
&hdev->adv_instance_expire, msecs_to_jiffies(timeout * 1000)); |
1d0fac2c3 Bluetooth: Use co... |
2114 |
} |
f22525700 Bluetooth: Move a... |
2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 |
/* If we're just re-scheduling the same instance again then do not * execute any HCI commands. This happens when a single instance is * being advertised. */ if (!force && hdev->cur_adv_instance == instance && hci_dev_test_flag(hdev, HCI_LE_ADV)) return 0; hdev->cur_adv_instance = instance; |
de181e887 Bluetooth: Impmle... |
2125 2126 2127 2128 2129 2130 2131 |
if (ext_adv_capable(hdev)) { __hci_req_start_ext_adv(req, instance); } else { __hci_req_update_adv_data(req, instance); __hci_req_update_scan_rsp_data(req, instance); __hci_req_enable_advertising(req); } |
f22525700 Bluetooth: Move a... |
2132 2133 2134 |
return 0; } |
f22525700 Bluetooth: Move a... |
2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 |
/* For a single instance: * - force == true: The instance will be removed even when its remaining * lifetime is not zero. * - force == false: the instance will be deactivated but kept stored unless * the remaining lifetime is zero. * * For instance == 0x00: * - force == true: All instances will be removed regardless of their timeout * setting. * - force == false: Only instances that have a timeout will be removed. */ |
37d3a1fab Bluetooth: mgmt: ... |
2146 2147 2148 |
void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk, struct hci_request *req, u8 instance, bool force) |
f22525700 Bluetooth: Move a... |
2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 |
{ struct adv_info *adv_instance, *n, *next_instance = NULL; int err; u8 rem_inst; /* Cancel any timeout concerning the removed instance(s). */ if (!instance || hdev->cur_adv_instance == instance) cancel_adv_timeout(hdev); /* Get the next instance to advertise BEFORE we remove * the current one. This can be the same instance again * if there is only one instance. */ if (instance && hdev->cur_adv_instance == instance) next_instance = hci_get_next_instance(hdev, instance); if (instance == 0x00) { list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) { if (!(force || adv_instance->timeout)) continue; rem_inst = adv_instance->instance; err = hci_remove_adv_instance(hdev, rem_inst); if (!err) |
37d3a1fab Bluetooth: mgmt: ... |
2174 |
mgmt_advertising_removed(sk, hdev, rem_inst); |
f22525700 Bluetooth: Move a... |
2175 |
} |
f22525700 Bluetooth: Move a... |
2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 |
} else { adv_instance = hci_find_adv_instance(hdev, instance); if (force || (adv_instance && adv_instance->timeout && !adv_instance->remaining_time)) { /* Don't advertise a removed instance. */ if (next_instance && next_instance->instance == instance) next_instance = NULL; err = hci_remove_adv_instance(hdev, instance); if (!err) |
37d3a1fab Bluetooth: mgmt: ... |
2188 |
mgmt_advertising_removed(sk, hdev, instance); |
f22525700 Bluetooth: Move a... |
2189 2190 |
} } |
f22525700 Bluetooth: Move a... |
2191 2192 2193 |
if (!req || !hdev_is_powered(hdev) || hci_dev_test_flag(hdev, HCI_ADVERTISING)) return; |
37adf701d Bluetooth: Add pe... |
2194 |
if (next_instance && !ext_adv_capable(hdev)) |
f22525700 Bluetooth: Move a... |
2195 2196 2197 |
__hci_req_schedule_adv_instance(req, next_instance->instance, false); } |
0857dd3be Bluetooth: Split ... |
2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 |
static void set_random_addr(struct hci_request *req, bdaddr_t *rpa) { struct hci_dev *hdev = req->hdev; /* If we're advertising or initiating an LE connection we can't * go ahead and change the random address at this time. This is * because the eventual initiator address used for the * subsequently created connection will be undefined (some * controllers use the new address and others the one we had * when the operation started). * * In this kind of scenario skip the update and let the random * address be updated at the next cycle. */ |
d7a5a11d7 Bluetooth: Introd... |
2212 |
if (hci_dev_test_flag(hdev, HCI_LE_ADV) || |
e7d9ab731 Bluetooth: add hc... |
2213 |
hci_lookup_le_connect(hdev)) { |
0857dd3be Bluetooth: Split ... |
2214 |
BT_DBG("Deferring random address update"); |
a1536da25 Bluetooth: Introd... |
2215 |
hci_dev_set_flag(hdev, HCI_RPA_EXPIRED); |
0857dd3be Bluetooth: Split ... |
2216 2217 2218 2219 2220 2221 2222 |
return; } hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, rpa); } int hci_update_random_address(struct hci_request *req, bool require_privacy, |
82a37adee Bluetooth: Add su... |
2223 |
bool use_rpa, u8 *own_addr_type) |
0857dd3be Bluetooth: Split ... |
2224 2225 2226 2227 2228 2229 2230 2231 |
{ struct hci_dev *hdev = req->hdev; int err; /* If privacy is enabled use a resolvable private address. If * current RPA has expired or there is something else than * the current RPA in use, then generate a new one. */ |
82a37adee Bluetooth: Add su... |
2232 |
if (use_rpa) { |
0857dd3be Bluetooth: Split ... |
2233 |
int to; |
d03c759e3 Bluetooth: Let co... |
2234 2235 2236 2237 2238 2239 2240 |
/* If Controller supports LL Privacy use own address type is * 0x03 */ if (use_ll_privacy(hdev)) *own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED; else *own_addr_type = ADDR_LE_DEV_RANDOM; |
0857dd3be Bluetooth: Split ... |
2241 |
|
a69d89272 Bluetooth: Introd... |
2242 |
if (!hci_dev_test_and_clear_flag(hdev, HCI_RPA_EXPIRED) && |
0857dd3be Bluetooth: Split ... |
2243 2244 2245 2246 2247 |
!bacmp(&hdev->random_addr, &hdev->rpa)) return 0; err = smp_generate_rpa(hdev, hdev->irk, &hdev->rpa); if (err < 0) { |
2064ee332 Bluetooth: Use bt... |
2248 |
bt_dev_err(hdev, "failed to generate new RPA"); |
0857dd3be Bluetooth: Split ... |
2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 |
return err; } set_random_addr(req, &hdev->rpa); to = msecs_to_jiffies(hdev->rpa_timeout * 1000); queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to); return 0; } /* In case of required privacy without resolvable private address, * use an non-resolvable private address. This is useful for active * scanning and non-connectable advertising. */ if (require_privacy) { bdaddr_t nrpa; while (true) { /* The non-resolvable private address is generated * from random six bytes with the two most significant * bits cleared. */ get_random_bytes(&nrpa, 6); nrpa.b[5] &= 0x3f; /* The non-resolvable private address shall not be * equal to the public address. */ if (bacmp(&hdev->bdaddr, &nrpa)) break; } *own_addr_type = ADDR_LE_DEV_RANDOM; set_random_addr(req, &nrpa); return 0; } /* If forcing static address is in use or there is no public * address use the static address as random address (but skip * the HCI command if the current random address is already the * static one. |
50b5b952b Bluetooth: Suppor... |
2291 2292 2293 2294 |
* * In case BR/EDR has been disabled on a dual-mode controller * and a static address has been configured, then use that * address instead of the public BR/EDR address. |
0857dd3be Bluetooth: Split ... |
2295 |
*/ |
b7cb93e52 Bluetooth: Merge ... |
2296 |
if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) || |
50b5b952b Bluetooth: Suppor... |
2297 |
!bacmp(&hdev->bdaddr, BDADDR_ANY) || |
d7a5a11d7 Bluetooth: Introd... |
2298 |
(!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) && |
50b5b952b Bluetooth: Suppor... |
2299 |
bacmp(&hdev->static_addr, BDADDR_ANY))) { |
0857dd3be Bluetooth: Split ... |
2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 |
*own_addr_type = ADDR_LE_DEV_RANDOM; if (bacmp(&hdev->static_addr, &hdev->random_addr)) hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, &hdev->static_addr); return 0; } /* Neither privacy nor static address is being used so use a * public address. */ *own_addr_type = ADDR_LE_DEV_PUBLIC; return 0; } |
2cf22218b Bluetooth: Add hc... |
2314 |
|
405a26110 Bluetooth: Move h... |
2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 |
static bool disconnected_whitelist_entries(struct hci_dev *hdev) { struct bdaddr_list *b; list_for_each_entry(b, &hdev->whitelist, list) { struct hci_conn *conn; conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &b->bdaddr); if (!conn) return true; if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) return true; } return false; } |
01b1cb87d Bluetooth: Run pa... |
2332 |
void __hci_req_update_scan(struct hci_request *req) |
405a26110 Bluetooth: Move h... |
2333 2334 2335 |
{ struct hci_dev *hdev = req->hdev; u8 scan; |
d7a5a11d7 Bluetooth: Introd... |
2336 |
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) |
405a26110 Bluetooth: Move h... |
2337 2338 2339 2340 2341 2342 2343 |
return; if (!hdev_is_powered(hdev)) return; if (mgmt_powering_down(hdev)) return; |
4f40afc6c Bluetooth: Handle... |
2344 2345 |
if (hdev->scanning_paused) return; |
d7a5a11d7 Bluetooth: Introd... |
2346 |
if (hci_dev_test_flag(hdev, HCI_CONNECTABLE) || |
405a26110 Bluetooth: Move h... |
2347 2348 2349 2350 |
disconnected_whitelist_entries(hdev)) scan = SCAN_PAGE; else scan = SCAN_DISABLED; |
d7a5a11d7 Bluetooth: Introd... |
2351 |
if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) |
405a26110 Bluetooth: Move h... |
2352 |
scan |= SCAN_INQUIRY; |
01b1cb87d Bluetooth: Run pa... |
2353 2354 2355 |
if (test_bit(HCI_PSCAN, &hdev->flags) == !!(scan & SCAN_PAGE) && test_bit(HCI_ISCAN, &hdev->flags) == !!(scan & SCAN_INQUIRY)) return; |
405a26110 Bluetooth: Move h... |
2356 2357 |
hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); } |
01b1cb87d Bluetooth: Run pa... |
2358 |
static int update_scan(struct hci_request *req, unsigned long opt) |
405a26110 Bluetooth: Move h... |
2359 |
{ |
01b1cb87d Bluetooth: Run pa... |
2360 2361 2362 2363 2364 |
hci_dev_lock(req->hdev); __hci_req_update_scan(req); hci_dev_unlock(req->hdev); return 0; } |
405a26110 Bluetooth: Move h... |
2365 |
|
01b1cb87d Bluetooth: Run pa... |
2366 2367 2368 2369 2370 |
static void scan_update_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, scan_update); hci_req_sync(hdev, update_scan, 0, HCI_CMD_TIMEOUT, NULL); |
405a26110 Bluetooth: Move h... |
2371 |
} |
53c0ba745 Bluetooth: Move c... |
2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 |
static int connectable_update(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; hci_dev_lock(hdev); __hci_req_update_scan(req); /* If BR/EDR is not enabled and we disable advertising as a * by-product of disabling connectable, we need to update the * advertising flags. */ if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) |
cab054ab4 Bluetooth: Clean ... |
2385 |
__hci_req_update_adv_data(req, hdev->cur_adv_instance); |
53c0ba745 Bluetooth: Move c... |
2386 2387 2388 |
/* Update the advertising parameters if necessary */ if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || |
de181e887 Bluetooth: Impmle... |
2389 2390 2391 2392 2393 2394 |
!list_empty(&hdev->adv_instances)) { if (ext_adv_capable(hdev)) __hci_req_start_ext_adv(req, hdev->cur_adv_instance); else __hci_req_enable_advertising(req); } |
53c0ba745 Bluetooth: Move c... |
2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 |
__hci_update_background_scan(req); hci_dev_unlock(hdev); return 0; } static void connectable_update_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, connectable_update); u8 status; hci_req_sync(hdev, connectable_update, 0, HCI_CMD_TIMEOUT, &status); mgmt_set_connectable_complete(hdev, status); } |
14bf5eac7 Bluetooth: Perfor... |
2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 |
static u8 get_service_classes(struct hci_dev *hdev) { struct bt_uuid *uuid; u8 val = 0; list_for_each_entry(uuid, &hdev->uuids, list) val |= uuid->svc_hint; return val; } void __hci_req_update_class(struct hci_request *req) { struct hci_dev *hdev = req->hdev; u8 cod[3]; BT_DBG("%s", hdev->name); if (!hdev_is_powered(hdev)) return; if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) return; if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE)) return; cod[0] = hdev->minor_class; cod[1] = hdev->major_class; cod[2] = get_service_classes(hdev); if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) cod[1] |= 0x20; if (memcmp(cod, hdev->dev_class, 3) == 0) return; hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod); } |
aed1a8851 Bluetooth: Move d... |
2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 |
static void write_iac(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_current_iac_lap cp; if (!hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) return; if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) { /* Limited discoverable mode */ cp.num_iac = min_t(u8, hdev->num_iac, 2); cp.iac_lap[0] = 0x00; /* LIAC */ cp.iac_lap[1] = 0x8b; cp.iac_lap[2] = 0x9e; cp.iac_lap[3] = 0x33; /* GIAC */ cp.iac_lap[4] = 0x8b; cp.iac_lap[5] = 0x9e; } else { /* General discoverable mode */ cp.num_iac = 1; cp.iac_lap[0] = 0x33; /* GIAC */ cp.iac_lap[1] = 0x8b; cp.iac_lap[2] = 0x9e; } hci_req_add(req, HCI_OP_WRITE_CURRENT_IAC_LAP, (cp.num_iac * 3) + 1, &cp); } static int discoverable_update(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; hci_dev_lock(hdev); if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) { write_iac(req); __hci_req_update_scan(req); __hci_req_update_class(req); } /* Advertising instances don't use the global discoverable setting, so * only update AD if advertising was enabled using Set Advertising. */ |
82a37adee Bluetooth: Add su... |
2495 |
if (hci_dev_test_flag(hdev, HCI_ADVERTISING)) { |
cab054ab4 Bluetooth: Clean ... |
2496 |
__hci_req_update_adv_data(req, 0x00); |
aed1a8851 Bluetooth: Move d... |
2497 |
|
82a37adee Bluetooth: Add su... |
2498 2499 2500 |
/* Discoverable mode affects the local advertising * address in limited privacy mode. */ |
de181e887 Bluetooth: Impmle... |
2501 2502 2503 2504 2505 2506 |
if (hci_dev_test_flag(hdev, HCI_LIMITED_PRIVACY)) { if (ext_adv_capable(hdev)) __hci_req_start_ext_adv(req, 0x00); else __hci_req_enable_advertising(req); } |
82a37adee Bluetooth: Add su... |
2507 |
} |
aed1a8851 Bluetooth: Move d... |
2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 |
hci_dev_unlock(hdev); return 0; } static void discoverable_update_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, discoverable_update); u8 status; hci_req_sync(hdev, discoverable_update, 0, HCI_CMD_TIMEOUT, &status); mgmt_set_discoverable_complete(hdev, status); } |
dcc0f0d9c Bluetooth: Introd... |
2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 |
void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn, u8 reason) { switch (conn->state) { case BT_CONNECTED: case BT_CONFIG: if (conn->type == AMP_LINK) { struct hci_cp_disconn_phy_link cp; cp.phy_handle = HCI_PHY_HANDLE(conn->handle); cp.reason = reason; hci_req_add(req, HCI_OP_DISCONN_PHY_LINK, sizeof(cp), &cp); } else { struct hci_cp_disconnect dc; dc.handle = cpu_to_le16(conn->handle); dc.reason = reason; hci_req_add(req, HCI_OP_DISCONNECT, sizeof(dc), &dc); } conn->state = BT_DISCONN; break; case BT_CONNECT: if (conn->type == LE_LINK) { if (test_bit(HCI_CONN_SCANNING, &conn->flags)) break; hci_req_add(req, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL); } else if (conn->type == ACL_LINK) { if (req->hdev->hci_ver < BLUETOOTH_VER_1_2) break; hci_req_add(req, HCI_OP_CREATE_CONN_CANCEL, 6, &conn->dst); } break; case BT_CONNECT2: if (conn->type == ACL_LINK) { struct hci_cp_reject_conn_req rej; bacpy(&rej.bdaddr, &conn->dst); rej.reason = reason; hci_req_add(req, HCI_OP_REJECT_CONN_REQ, sizeof(rej), &rej); } else if (conn->type == SCO_LINK || conn->type == ESCO_LINK) { struct hci_cp_reject_sync_conn_req rej; bacpy(&rej.bdaddr, &conn->dst); /* SCO rejection has its own limited set of * allowed error values (0x0D-0x0F) which isn't * compatible with most values passed to this * function. To be safe hard-code one of the * values that's suitable for SCO. */ |
3c0975a7a Bluetooth: Fix re... |
2579 |
rej.reason = HCI_ERROR_REJ_LIMITED_RESOURCES; |
dcc0f0d9c Bluetooth: Introd... |
2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 |
hci_req_add(req, HCI_OP_REJECT_SYNC_CONN_REQ, sizeof(rej), &rej); } break; default: conn->state = BT_CLOSED; break; } } static void abort_conn_complete(struct hci_dev *hdev, u8 status, u16 opcode) { if (status) BT_DBG("Failed to abort connection: status 0x%2.2x", status); } int hci_abort_conn(struct hci_conn *conn, u8 reason) { struct hci_request req; int err; hci_req_init(&req, conn->hdev); __hci_abort_conn(&req, conn, reason); err = hci_req_run(&req, abort_conn_complete); if (err && err != -ENODATA) { |
2064ee332 Bluetooth: Use bt... |
2608 |
bt_dev_err(conn->hdev, "failed to run HCI request: err %d", err); |
dcc0f0d9c Bluetooth: Introd... |
2609 2610 2611 2612 2613 |
return err; } return 0; } |
5fc16cc4f Bluetooth: Add st... |
2614 |
|
a1d01db12 Bluetooth: Add er... |
2615 |
static int update_bg_scan(struct hci_request *req, unsigned long opt) |
2e93e53b8 Bluetooth: Run al... |
2616 2617 2618 2619 |
{ hci_dev_lock(req->hdev); __hci_update_background_scan(req); hci_dev_unlock(req->hdev); |
a1d01db12 Bluetooth: Add er... |
2620 |
return 0; |
2e93e53b8 Bluetooth: Run al... |
2621 2622 2623 2624 2625 2626 |
} static void bg_scan_update(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, bg_scan_update); |
84235d222 Bluetooth: Use re... |
2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 |
struct hci_conn *conn; u8 status; int err; err = hci_req_sync(hdev, update_bg_scan, 0, HCI_CMD_TIMEOUT, &status); if (!err) return; hci_dev_lock(hdev); conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); if (conn) hci_le_conn_failed(conn, status); |
2e93e53b8 Bluetooth: Run al... |
2640 |
|
84235d222 Bluetooth: Use re... |
2641 |
hci_dev_unlock(hdev); |
2e93e53b8 Bluetooth: Run al... |
2642 |
} |
f4a2cb4d8 Bluetooth: Simpli... |
2643 |
static int le_scan_disable(struct hci_request *req, unsigned long opt) |
7c1fbed23 Bluetooth: Move L... |
2644 |
{ |
5c49bcce5 Bluetooth: Enable... |
2645 |
hci_req_add_le_scan_disable(req, false); |
f4a2cb4d8 Bluetooth: Simpli... |
2646 |
return 0; |
7c1fbed23 Bluetooth: Move L... |
2647 |
} |
f4a2cb4d8 Bluetooth: Simpli... |
2648 |
static int bredr_inquiry(struct hci_request *req, unsigned long opt) |
7c1fbed23 Bluetooth: Move L... |
2649 |
{ |
f4a2cb4d8 Bluetooth: Simpli... |
2650 |
u8 length = opt; |
78b781ca0 Bluetooth: Add su... |
2651 2652 |
const u8 giac[3] = { 0x33, 0x8b, 0x9e }; const u8 liac[3] = { 0x00, 0x8b, 0x9e }; |
7c1fbed23 Bluetooth: Move L... |
2653 |
struct hci_cp_inquiry cp; |
7c1fbed23 Bluetooth: Move L... |
2654 |
|
f4a2cb4d8 Bluetooth: Simpli... |
2655 |
BT_DBG("%s", req->hdev->name); |
7c1fbed23 Bluetooth: Move L... |
2656 |
|
f4a2cb4d8 Bluetooth: Simpli... |
2657 2658 2659 |
hci_dev_lock(req->hdev); hci_inquiry_cache_flush(req->hdev); hci_dev_unlock(req->hdev); |
7c1fbed23 Bluetooth: Move L... |
2660 |
|
f4a2cb4d8 Bluetooth: Simpli... |
2661 |
memset(&cp, 0, sizeof(cp)); |
78b781ca0 Bluetooth: Add su... |
2662 2663 2664 2665 2666 |
if (req->hdev->discovery.limited) memcpy(&cp.lap, liac, sizeof(cp.lap)); else memcpy(&cp.lap, giac, sizeof(cp.lap)); |
f4a2cb4d8 Bluetooth: Simpli... |
2667 |
cp.length = length; |
7c1fbed23 Bluetooth: Move L... |
2668 |
|
f4a2cb4d8 Bluetooth: Simpli... |
2669 |
hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); |
7c1fbed23 Bluetooth: Move L... |
2670 |
|
a1d01db12 Bluetooth: Add er... |
2671 |
return 0; |
7c1fbed23 Bluetooth: Move L... |
2672 2673 2674 2675 2676 2677 2678 |
} static void le_scan_disable_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, le_scan_disable.work); u8 status; |
7c1fbed23 Bluetooth: Move L... |
2679 2680 |
BT_DBG("%s", hdev->name); |
f4a2cb4d8 Bluetooth: Simpli... |
2681 2682 |
if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) return; |
7c1fbed23 Bluetooth: Move L... |
2683 |
cancel_delayed_work(&hdev->le_scan_restart); |
f4a2cb4d8 Bluetooth: Simpli... |
2684 2685 |
hci_req_sync(hdev, le_scan_disable, 0, HCI_CMD_TIMEOUT, &status); if (status) { |
2064ee332 Bluetooth: Use bt... |
2686 2687 |
bt_dev_err(hdev, "failed to disable LE scan: status 0x%02x", status); |
f4a2cb4d8 Bluetooth: Simpli... |
2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 |
return; } hdev->discovery.scan_start = 0; /* If we were running LE only scan, change discovery state. If * we were running both LE and BR/EDR inquiry simultaneously, * and BR/EDR inquiry is already finished, stop discovery, * otherwise BR/EDR inquiry will stop discovery when finished. * If we will resolve remote device name, do not change * discovery state. */ if (hdev->discovery.type == DISCOV_TYPE_LE) goto discov_stopped; if (hdev->discovery.type != DISCOV_TYPE_INTERLEAVED) |
7c1fbed23 Bluetooth: Move L... |
2705 |
return; |
f4a2cb4d8 Bluetooth: Simpli... |
2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 |
if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) { if (!test_bit(HCI_INQUIRY, &hdev->flags) && hdev->discovery.state != DISCOVERY_RESOLVING) goto discov_stopped; return; } hci_req_sync(hdev, bredr_inquiry, DISCOV_INTERLEAVED_INQUIRY_LEN, HCI_CMD_TIMEOUT, &status); if (status) { |
2064ee332 Bluetooth: Use bt... |
2717 |
bt_dev_err(hdev, "inquiry failed: status 0x%02x", status); |
f4a2cb4d8 Bluetooth: Simpli... |
2718 2719 2720 2721 2722 2723 2724 2725 2726 |
goto discov_stopped; } return; discov_stopped: hci_dev_lock(hdev); hci_discovery_set_state(hdev, DISCOVERY_STOPPED); hci_dev_unlock(hdev); |
7c1fbed23 Bluetooth: Move L... |
2727 |
} |
3dfe5905a Bluetooth: Remove... |
2728 2729 2730 |
static int le_scan_restart(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; |
3dfe5905a Bluetooth: Remove... |
2731 2732 2733 2734 |
/* If controller is not scanning we are done. */ if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) return 0; |
3a0377d99 Bluetooth: Don't ... |
2735 2736 2737 2738 |
if (hdev->scanning_paused) { bt_dev_dbg(hdev, "Scanning is paused for suspend"); return 0; } |
5c49bcce5 Bluetooth: Enable... |
2739 |
hci_req_add_le_scan_disable(req, false); |
3dfe5905a Bluetooth: Remove... |
2740 |
|
a2344b9e3 Bluetooth: Use ex... |
2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 |
if (use_ext_scan(hdev)) { struct hci_cp_le_set_ext_scan_enable ext_enable_cp; memset(&ext_enable_cp, 0, sizeof(ext_enable_cp)); ext_enable_cp.enable = LE_SCAN_ENABLE; ext_enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_ENABLE, sizeof(ext_enable_cp), &ext_enable_cp); } else { struct hci_cp_le_set_scan_enable cp; memset(&cp, 0, sizeof(cp)); cp.enable = LE_SCAN_ENABLE; cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); } |
3dfe5905a Bluetooth: Remove... |
2758 2759 2760 2761 2762 |
return 0; } static void le_scan_restart_work(struct work_struct *work) |
7c1fbed23 Bluetooth: Move L... |
2763 |
{ |
3dfe5905a Bluetooth: Remove... |
2764 2765 |
struct hci_dev *hdev = container_of(work, struct hci_dev, le_scan_restart.work); |
7c1fbed23 Bluetooth: Move L... |
2766 |
unsigned long timeout, duration, scan_start, now; |
3dfe5905a Bluetooth: Remove... |
2767 |
u8 status; |
7c1fbed23 Bluetooth: Move L... |
2768 2769 |
BT_DBG("%s", hdev->name); |
3dfe5905a Bluetooth: Remove... |
2770 |
hci_req_sync(hdev, le_scan_restart, 0, HCI_CMD_TIMEOUT, &status); |
7c1fbed23 Bluetooth: Move L... |
2771 |
if (status) { |
2064ee332 Bluetooth: Use bt... |
2772 2773 |
bt_dev_err(hdev, "failed to restart LE scan: status %d", status); |
7c1fbed23 Bluetooth: Move L... |
2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 |
return; } hci_dev_lock(hdev); if (!test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) || !hdev->discovery.scan_start) goto unlock; /* When the scan was started, hdev->le_scan_disable has been queued * after duration from scan_start. During scan restart this job * has been canceled, and we need to queue it again after proper * timeout, to make sure that scan does not run indefinitely. */ duration = hdev->discovery.scan_duration; scan_start = hdev->discovery.scan_start; now = jiffies; if (now - scan_start <= duration) { int elapsed; if (now >= scan_start) elapsed = now - scan_start; else elapsed = ULONG_MAX - scan_start + now; timeout = duration - elapsed; } else { timeout = 0; } queue_delayed_work(hdev->req_workqueue, &hdev->le_scan_disable, timeout); unlock: hci_dev_unlock(hdev); } |
e68f072b7 Bluetooth: Move S... |
2810 2811 2812 2813 |
static int active_scan(struct hci_request *req, unsigned long opt) { uint16_t interval = opt; struct hci_dev *hdev = req->hdev; |
e68f072b7 Bluetooth: Move S... |
2814 |
u8 own_addr_type; |
849c9c35e Bluetooth: Use ex... |
2815 2816 |
/* White list is not used for discovery */ u8 filter_policy = 0x00; |
e1d572357 Bluetooth: Config... |
2817 2818 |
/* Discovery doesn't require controller address resolution */ bool addr_resolv = false; |
e68f072b7 Bluetooth: Move S... |
2819 2820 2821 |
int err; BT_DBG("%s", hdev->name); |
e68f072b7 Bluetooth: Move S... |
2822 2823 2824 2825 2826 |
/* If controller is scanning, it means the background scanning is * running. Thus, we should temporarily stop it in order to set the * discovery scanning parameters. */ if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) |
5c49bcce5 Bluetooth: Enable... |
2827 |
hci_req_add_le_scan_disable(req, false); |
e68f072b7 Bluetooth: Move S... |
2828 2829 2830 2831 2832 |
/* All active scans will be done with either a resolvable private * address (when privacy feature has been enabled) or non-resolvable * private address. */ |
82a37adee Bluetooth: Add su... |
2833 2834 |
err = hci_update_random_address(req, true, scan_use_rpa(hdev), &own_addr_type); |
e68f072b7 Bluetooth: Move S... |
2835 2836 |
if (err < 0) own_addr_type = ADDR_LE_DEV_PUBLIC; |
d4edda0f7 Bluetooth: use co... |
2837 2838 |
hci_req_start_scan(req, LE_SCAN_ACTIVE, interval, hdev->le_scan_window_discovery, own_addr_type, |
e1d572357 Bluetooth: Config... |
2839 |
filter_policy, addr_resolv); |
e68f072b7 Bluetooth: Move S... |
2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 |
return 0; } static int interleaved_discov(struct hci_request *req, unsigned long opt) { int err; BT_DBG("%s", req->hdev->name); err = active_scan(req, opt); if (err) return err; |
7df26b562 Bluetooth: Pass i... |
2852 |
return bredr_inquiry(req, DISCOV_BREDR_INQUIRY_LEN); |
e68f072b7 Bluetooth: Move S... |
2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 |
} static void start_discovery(struct hci_dev *hdev, u8 *status) { unsigned long timeout; BT_DBG("%s type %u", hdev->name, hdev->discovery.type); switch (hdev->discovery.type) { case DISCOV_TYPE_BREDR: if (!hci_dev_test_flag(hdev, HCI_INQUIRY)) |
7df26b562 Bluetooth: Pass i... |
2864 2865 |
hci_req_sync(hdev, bredr_inquiry, DISCOV_BREDR_INQUIRY_LEN, HCI_CMD_TIMEOUT, |
e68f072b7 Bluetooth: Move S... |
2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 |
status); return; case DISCOV_TYPE_INTERLEAVED: /* When running simultaneous discovery, the LE scanning time * should occupy the whole discovery time sine BR/EDR inquiry * and LE scanning are scheduled by the controller. * * For interleaving discovery in comparison, BR/EDR inquiry * and LE scanning are done sequentially with separate * timeouts. */ if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) { timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); /* During simultaneous discovery, we double LE scan * interval. We must leave some time for the controller * to do BR/EDR inquiry. */ hci_req_sync(hdev, interleaved_discov, |
d4edda0f7 Bluetooth: use co... |
2885 |
hdev->le_scan_int_discovery * 2, HCI_CMD_TIMEOUT, |
e68f072b7 Bluetooth: Move S... |
2886 2887 2888 2889 2890 |
status); break; } timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout); |
d4edda0f7 Bluetooth: use co... |
2891 |
hci_req_sync(hdev, active_scan, hdev->le_scan_int_discovery, |
e68f072b7 Bluetooth: Move S... |
2892 2893 2894 2895 |
HCI_CMD_TIMEOUT, status); break; case DISCOV_TYPE_LE: timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); |
d4edda0f7 Bluetooth: use co... |
2896 |
hci_req_sync(hdev, active_scan, hdev->le_scan_int_discovery, |
e68f072b7 Bluetooth: Move S... |
2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 |
HCI_CMD_TIMEOUT, status); break; default: *status = HCI_ERROR_UNSPECIFIED; return; } if (*status) return; BT_DBG("%s timeout %u ms", hdev->name, jiffies_to_msecs(timeout)); /* When service discovery is used and the controller has a * strict duplicate filter, it is important to remember the * start and duration of the scan. This is required for * restarting scanning during the discovery phase. */ if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) && hdev->discovery.result_filtering) { hdev->discovery.scan_start = jiffies; hdev->discovery.scan_duration = timeout; } queue_delayed_work(hdev->req_workqueue, &hdev->le_scan_disable, timeout); } |
2154d3f4f Bluetooth: Move S... |
2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 |
bool hci_req_stop_discovery(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct discovery_state *d = &hdev->discovery; struct hci_cp_remote_name_req_cancel cp; struct inquiry_entry *e; bool ret = false; BT_DBG("%s state %u", hdev->name, hdev->discovery.state); if (d->state == DISCOVERY_FINDING || d->state == DISCOVERY_STOPPING) { if (test_bit(HCI_INQUIRY, &hdev->flags)) hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL); if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { cancel_delayed_work(&hdev->le_scan_disable); |
5c49bcce5 Bluetooth: Enable... |
2939 |
hci_req_add_le_scan_disable(req, false); |
2154d3f4f Bluetooth: Move S... |
2940 2941 2942 2943 2944 2945 |
} ret = true; } else { /* Passive scanning */ if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { |
5c49bcce5 Bluetooth: Enable... |
2946 |
hci_req_add_le_scan_disable(req, false); |
2154d3f4f Bluetooth: Move S... |
2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 |
ret = true; } } /* No further actions needed for LE-only discovery */ if (d->type == DISCOV_TYPE_LE) return ret; if (d->state == DISCOVERY_RESOLVING || d->state == DISCOVERY_STOPPING) { e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_PENDING); if (!e) return ret; bacpy(&cp.bdaddr, &e->data.bdaddr); hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp), &cp); ret = true; } return ret; } static int stop_discovery(struct hci_request *req, unsigned long opt) { hci_dev_lock(req->hdev); hci_req_stop_discovery(req); hci_dev_unlock(req->hdev); return 0; } |
e68f072b7 Bluetooth: Move S... |
2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 |
static void discov_update(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, discov_update); u8 status = 0; switch (hdev->discovery.state) { case DISCOVERY_STARTING: start_discovery(hdev, &status); mgmt_start_discovery_complete(hdev, status); if (status) hci_discovery_set_state(hdev, DISCOVERY_STOPPED); else hci_discovery_set_state(hdev, DISCOVERY_FINDING); break; |
2154d3f4f Bluetooth: Move S... |
2993 2994 2995 2996 2997 2998 |
case DISCOVERY_STOPPING: hci_req_sync(hdev, stop_discovery, 0, HCI_CMD_TIMEOUT, &status); mgmt_stop_discovery_complete(hdev, status); if (!status) hci_discovery_set_state(hdev, DISCOVERY_STOPPED); break; |
e68f072b7 Bluetooth: Move S... |
2999 3000 3001 3002 3003 |
case DISCOVERY_STOPPED: default: return; } } |
c366f555b Bluetooth: Move d... |
3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 |
static void discov_off(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, discov_off.work); BT_DBG("%s", hdev->name); hci_dev_lock(hdev); /* When discoverable timeout triggers, then just make sure * the limited discoverable flag is cleared. Even in the case * of a timeout triggered from general discoverable, it is * safe to unconditionally clear the flag. */ hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE); hci_dev_clear_flag(hdev, HCI_DISCOVERABLE); hdev->discov_timeout = 0; hci_dev_unlock(hdev); hci_req_sync(hdev, discoverable_update, 0, HCI_CMD_TIMEOUT, NULL); mgmt_new_settings(hdev); } |
2ff13894c Bluetooth: Perfor... |
3027 3028 3029 |
static int powered_update_hci(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; |
2ff13894c Bluetooth: Perfor... |
3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 |
u8 link_sec; hci_dev_lock(hdev); if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && !lmp_host_ssp_capable(hdev)) { u8 mode = 0x01; hci_req_add(req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode); if (bredr_sc_enabled(hdev) && !lmp_host_sc_capable(hdev)) { u8 support = 0x01; hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT, sizeof(support), &support); } } if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) && lmp_bredr_capable(hdev)) { struct hci_cp_write_le_host_supported cp; cp.le = 0x01; cp.simul = 0x00; /* Check first if we already have the right * host state (host features set) */ if (cp.le != lmp_host_le_capable(hdev) || cp.simul != lmp_host_le_br_capable(hdev)) hci_req_add(req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp); } |
d6b7e2cdd Bluetooth: Clean ... |
3063 |
if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) { |
2ff13894c Bluetooth: Perfor... |
3064 3065 3066 3067 |
/* Make sure the controller has a good default for * advertising data. This also applies to the case * where BR/EDR was toggled during the AUTO_OFF phase. */ |
d6b7e2cdd Bluetooth: Clean ... |
3068 3069 |
if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || list_empty(&hdev->adv_instances)) { |
a0fb3726b Bluetooth: Use Se... |
3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 |
int err; if (ext_adv_capable(hdev)) { err = __hci_req_setup_ext_adv_instance(req, 0x00); if (!err) __hci_req_update_scan_rsp_data(req, 0x00); } else { err = 0; __hci_req_update_adv_data(req, 0x00); __hci_req_update_scan_rsp_data(req, 0x00); } |
d6b7e2cdd Bluetooth: Clean ... |
3083 |
|
de181e887 Bluetooth: Impmle... |
3084 |
if (hci_dev_test_flag(hdev, HCI_ADVERTISING)) { |
a0fb3726b Bluetooth: Use Se... |
3085 |
if (!ext_adv_capable(hdev)) |
de181e887 Bluetooth: Impmle... |
3086 |
__hci_req_enable_advertising(req); |
a0fb3726b Bluetooth: Use Se... |
3087 |
else if (!err) |
1d0fac2c3 Bluetooth: Use co... |
3088 3089 |
__hci_req_enable_ext_advertising(req, 0x00); |
de181e887 Bluetooth: Impmle... |
3090 |
} |
d6b7e2cdd Bluetooth: Clean ... |
3091 3092 |
} else if (!list_empty(&hdev->adv_instances)) { struct adv_info *adv_instance; |
2ff13894c Bluetooth: Perfor... |
3093 |
|
2ff13894c Bluetooth: Perfor... |
3094 3095 |
adv_instance = list_first_entry(&hdev->adv_instances, struct adv_info, list); |
2ff13894c Bluetooth: Perfor... |
3096 |
__hci_req_schedule_adv_instance(req, |
d6b7e2cdd Bluetooth: Clean ... |
3097 |
adv_instance->instance, |
2ff13894c Bluetooth: Perfor... |
3098 |
true); |
d6b7e2cdd Bluetooth: Clean ... |
3099 |
} |
2ff13894c Bluetooth: Perfor... |
3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 |
} link_sec = hci_dev_test_flag(hdev, HCI_LINK_SECURITY); if (link_sec != test_bit(HCI_AUTH, &hdev->flags)) hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(link_sec), &link_sec); if (lmp_bredr_capable(hdev)) { if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) __hci_req_write_fast_connectable(req, true); else __hci_req_write_fast_connectable(req, false); __hci_req_update_scan(req); __hci_req_update_class(req); __hci_req_update_name(req); __hci_req_update_eir(req); } hci_dev_unlock(hdev); return 0; } int __hci_req_hci_power_on(struct hci_dev *hdev) { /* Register the available SMP channels (BR/EDR and LE) only when * successfully powering on the controller. This late * registration is required so that LE SMP can clearly decide if * the public address or static address is used. */ smp_register(hdev); return __hci_req_sync(hdev, powered_update_hci, 0, HCI_CMD_TIMEOUT, NULL); } |
5fc16cc4f Bluetooth: Add st... |
3134 3135 |
void hci_request_setup(struct hci_dev *hdev) { |
e68f072b7 Bluetooth: Move S... |
3136 |
INIT_WORK(&hdev->discov_update, discov_update); |
2e93e53b8 Bluetooth: Run al... |
3137 |
INIT_WORK(&hdev->bg_scan_update, bg_scan_update); |
01b1cb87d Bluetooth: Run pa... |
3138 |
INIT_WORK(&hdev->scan_update, scan_update_work); |
53c0ba745 Bluetooth: Move c... |
3139 |
INIT_WORK(&hdev->connectable_update, connectable_update_work); |
aed1a8851 Bluetooth: Move d... |
3140 |
INIT_WORK(&hdev->discoverable_update, discoverable_update_work); |
c366f555b Bluetooth: Move d... |
3141 |
INIT_DELAYED_WORK(&hdev->discov_off, discov_off); |
7c1fbed23 Bluetooth: Move L... |
3142 3143 |
INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work); |
f22525700 Bluetooth: Move a... |
3144 |
INIT_DELAYED_WORK(&hdev->adv_instance_expire, adv_timeout_expire); |
5fc16cc4f Bluetooth: Add st... |
3145 3146 3147 3148 |
} void hci_request_cancel_all(struct hci_dev *hdev) { |
7df0f73ec Bluetooth: Simpli... |
3149 |
hci_req_sync_cancel(hdev, ENODEV); |
e68f072b7 Bluetooth: Move S... |
3150 |
cancel_work_sync(&hdev->discov_update); |
2e93e53b8 Bluetooth: Run al... |
3151 |
cancel_work_sync(&hdev->bg_scan_update); |
01b1cb87d Bluetooth: Run pa... |
3152 |
cancel_work_sync(&hdev->scan_update); |
53c0ba745 Bluetooth: Move c... |
3153 |
cancel_work_sync(&hdev->connectable_update); |
aed1a8851 Bluetooth: Move d... |
3154 |
cancel_work_sync(&hdev->discoverable_update); |
c366f555b Bluetooth: Move d... |
3155 |
cancel_delayed_work_sync(&hdev->discov_off); |
7c1fbed23 Bluetooth: Move L... |
3156 3157 |
cancel_delayed_work_sync(&hdev->le_scan_disable); cancel_delayed_work_sync(&hdev->le_scan_restart); |
f22525700 Bluetooth: Move a... |
3158 3159 3160 3161 3162 |
if (hdev->adv_instance_timeout) { cancel_delayed_work_sync(&hdev->adv_instance_expire); hdev->adv_instance_timeout = 0; } |
5fc16cc4f Bluetooth: Add st... |
3163 |
} |