diff options
Diffstat (limited to 'net/bluetooth/hci_request.c')
| -rw-r--r-- | net/bluetooth/hci_request.c | 478 |
1 files changed, 71 insertions, 407 deletions
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index f15626607b2d..92611bfc0b9e 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -30,6 +30,7 @@ #include "smp.h" #include "hci_request.h" #include "msft.h" +#include "eir.h" #define HCI_REQ_DONE 0 #define HCI_REQ_PEND 1 @@ -521,164 +522,6 @@ void __hci_req_update_name(struct hci_request *req) hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp); } -#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; @@ -698,7 +541,7 @@ void __hci_req_update_eir(struct hci_request *req) memset(&cp, 0, sizeof(cp)); - create_eir(hdev, cp.data); + eir_create(hdev, cp.data); if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) return; @@ -1134,25 +977,6 @@ void hci_req_add_le_passive_scan(struct hci_request *req) addr_resolv); } -static bool adv_instance_is_scannable(struct hci_dev *hdev, u8 instance) -{ - struct adv_info *adv_instance; - - /* Instance 0x00 always set local name */ - if (instance == 0x00) - return true; - - adv_instance = hci_find_adv_instance(hdev, instance); - if (!adv_instance) - return false; - - if (adv_instance->flags & MGMT_ADV_FLAG_APPEARANCE || - adv_instance->flags & MGMT_ADV_FLAG_LOCAL_NAME) - return true; - - return adv_instance->scan_rsp_len ? true : false; -} - static void hci_req_clear_event_filter(struct hci_request *req) { struct hci_cp_set_event_filter f; @@ -1281,21 +1105,24 @@ static void suspend_req_complete(struct hci_dev *hdev, u8 status, u16 opcode) } } -static void hci_req_add_set_adv_filter_enable(struct hci_request *req, - bool enable) +static void hci_req_prepare_adv_monitor_suspend(struct hci_request *req, + bool suspending) { struct hci_dev *hdev = req->hdev; switch (hci_get_adv_monitor_offload_ext(hdev)) { case HCI_ADV_MONITOR_EXT_MSFT: - msft_req_add_set_filter_enable(req, enable); + if (suspending) + msft_suspend(hdev); + else + msft_resume(hdev); break; default: return; } /* No need to block when enabling since it's on resume path */ - if (hdev->suspended && !enable) + if (hdev->suspended && suspending) set_bit(SUSPEND_SET_ADV_FILTER, hdev->suspend_tasks); } @@ -1362,7 +1189,7 @@ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) } /* Disable advertisement filters */ - hci_req_add_set_adv_filter_enable(&req, false); + hci_req_prepare_adv_monitor_suspend(&req, true); /* Prevent disconnects from causing scanning to be re-enabled */ hdev->scanning_paused = true; @@ -1404,7 +1231,7 @@ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) /* Reset passive/background scanning to normal */ __hci_update_background_scan(&req); /* Enable all of the advertisement filters */ - hci_req_add_set_adv_filter_enable(&req, true); + hci_req_prepare_adv_monitor_suspend(&req, false); /* Unpause directed advertising */ hdev->advertising_paused = false; @@ -1442,7 +1269,7 @@ done: static bool adv_cur_instance_is_scannable(struct hci_dev *hdev) { - return adv_instance_is_scannable(hdev, hdev->cur_adv_instance); + return hci_adv_instance_is_scannable(hdev, hdev->cur_adv_instance); } void __hci_req_disable_advertising(struct hci_request *req) @@ -1457,40 +1284,6 @@ void __hci_req_disable_advertising(struct hci_request *req) } } -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; - - if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) - flags |= MGMT_ADV_FLAG_LIMITED_DISCOV; - else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) - flags |= MGMT_ADV_FLAG_DISCOV; - - 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; -} - static bool adv_use_rpa(struct hci_dev *hdev, uint32_t flags) { /* If privacy is not enabled don't use RPA */ @@ -1555,15 +1348,15 @@ static bool is_advertising_allowed(struct hci_dev *hdev, bool connectable) void __hci_req_enable_advertising(struct hci_request *req) { struct hci_dev *hdev = req->hdev; - struct adv_info *adv_instance; + struct adv_info *adv; struct hci_cp_le_set_adv_param cp; u8 own_addr_type, enable = 0x01; bool connectable; u16 adv_min_interval, adv_max_interval; u32 flags; - flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance); - adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance); + flags = hci_adv_instance_flags(hdev, hdev->cur_adv_instance); + adv = hci_find_adv_instance(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. @@ -1595,9 +1388,9 @@ void __hci_req_enable_advertising(struct hci_request *req) memset(&cp, 0, sizeof(cp)); - if (adv_instance) { - adv_min_interval = adv_instance->min_interval; - adv_max_interval = adv_instance->max_interval; + if (adv) { + adv_min_interval = adv->min_interval; + adv_max_interval = adv->max_interval; } else { adv_min_interval = hdev->le_adv_min_interval; adv_max_interval = hdev->le_adv_max_interval; @@ -1628,85 +1421,6 @@ void __hci_req_enable_advertising(struct hci_request *req) hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); } -u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len) -{ - size_t short_len; - size_t complete_len; - - /* no space left for name (+ NULL + type + len) */ - if ((HCI_MAX_AD_LENGTH - ad_len) < HCI_MAX_SHORT_NAME_LENGTH + 3) - return ad_len; - - /* use complete name if present and fits */ - complete_len = strlen(hdev->dev_name); - if (complete_len && complete_len <= HCI_MAX_SHORT_NAME_LENGTH) - return eir_append_data(ptr, ad_len, EIR_NAME_COMPLETE, - hdev->dev_name, complete_len + 1); - - /* use short name if present */ - short_len = strlen(hdev->short_name); - if (short_len) - return eir_append_data(ptr, ad_len, EIR_NAME_SHORT, - hdev->short_name, short_len + 1); - - /* 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)); - } - - return ad_len; -} - -static u8 append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len) -{ - return eir_append_le16(ptr, ad_len, EIR_APPEARANCE, hdev->appearance); -} - -static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr) -{ - u8 scan_rsp_len = 0; - - if (hdev->appearance) - scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len); - - return append_local_name(hdev, ptr, scan_rsp_len); -} - -static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance, - u8 *ptr) -{ - struct adv_info *adv_instance; - u32 instance_flags; - u8 scan_rsp_len = 0; - - adv_instance = hci_find_adv_instance(hdev, instance); - if (!adv_instance) - return 0; - - instance_flags = adv_instance->flags; - - if ((instance_flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance) - scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len); - - memcpy(&ptr[scan_rsp_len], adv_instance->scan_rsp_data, - adv_instance->scan_rsp_len); - - scan_rsp_len += adv_instance->scan_rsp_len; - - if (instance_flags & MGMT_ADV_FLAG_LOCAL_NAME) - scan_rsp_len = append_local_name(hdev, ptr, scan_rsp_len); - - return scan_rsp_len; -} - void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance) { struct hci_dev *hdev = req->hdev; @@ -1723,11 +1437,7 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance) memset(&pdu, 0, sizeof(pdu)); - if (instance) - len = create_instance_scan_rsp_data(hdev, instance, - pdu.data); - else - len = create_default_scan_rsp_data(hdev, pdu.data); + len = eir_create_scan_rsp(hdev, instance, pdu.data); if (hdev->scan_rsp_data_len == len && !memcmp(pdu.data, hdev->scan_rsp_data, len)) @@ -1748,11 +1458,7 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance) 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); + len = eir_create_scan_rsp(hdev, instance, cp.data); if (hdev->scan_rsp_data_len == len && !memcmp(cp.data, hdev->scan_rsp_data, len)) @@ -1767,95 +1473,6 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance) } } -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); - - /* 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; - - /* 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; - - if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) - flags |= LE_AD_NO_BREDR; - - 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); - - /* 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; - } - } - -skip_flags: - 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; - } - - if (instance_flags & MGMT_ADV_FLAG_TX_POWER) { - s8 adv_tx_power; - - 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; - } - } - - return ad_len; -} - void __hci_req_update_adv_data(struct hci_request *req, u8 instance) { struct hci_dev *hdev = req->hdev; @@ -1872,7 +1489,7 @@ void __hci_req_update_adv_data(struct hci_request *req, u8 instance) memset(&pdu, 0, sizeof(pdu)); - len = create_instance_adv_data(hdev, instance, pdu.data); + len = eir_create_adv_data(hdev, instance, pdu.data); /* There's nothing to do if the data hasn't changed */ if (hdev->adv_data_len == len && @@ -1894,7 +1511,7 @@ void __hci_req_update_adv_data(struct hci_request *req, u8 instance) memset(&cp, 0, sizeof(cp)); - len = create_instance_adv_data(hdev, instance, cp.data); + len = eir_create_adv_data(hdev, instance, cp.data); /* There's nothing to do if the data hasn't changed */ if (hdev->adv_data_len == len && @@ -2183,7 +1800,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance) adv_instance = NULL; } - flags = get_adv_instance_flags(hdev, instance); + flags = hci_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. @@ -2223,7 +1840,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance) cp.evt_properties = cpu_to_le16(LE_EXT_ADV_CONN_IND); else cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_IND); - } else if (adv_instance_is_scannable(hdev, instance) || + } else if (hci_adv_instance_is_scannable(hdev, instance) || (flags & MGMT_ADV_PARAM_SCAN_RSP)) { if (secondary_adv) cp.evt_properties = cpu_to_le16(LE_EXT_ADV_SCAN_IND); @@ -3327,6 +2944,53 @@ bool hci_req_stop_discovery(struct hci_request *req) return ret; } +static void config_data_path_complete(struct hci_dev *hdev, u8 status, + u16 opcode) +{ + bt_dev_dbg(hdev, "status %u", status); +} + +int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec) +{ + struct hci_request req; + int err; + __u8 vnd_len, *vnd_data = NULL; + struct hci_op_configure_data_path *cmd = NULL; + + hci_req_init(&req, hdev); + + err = hdev->get_codec_config_data(hdev, ESCO_LINK, codec, &vnd_len, + &vnd_data); + if (err < 0) + goto error; + + cmd = kzalloc(sizeof(*cmd) + vnd_len, GFP_KERNEL); + if (!cmd) { + err = -ENOMEM; + goto error; + } + + err = hdev->get_data_path_id(hdev, &cmd->data_path_id); + if (err < 0) + goto error; + + cmd->vnd_len = vnd_len; + memcpy(cmd->vnd_data, vnd_data, vnd_len); + + cmd->direction = 0x00; + hci_req_add(&req, HCI_CONFIGURE_DATA_PATH, sizeof(*cmd) + vnd_len, cmd); + + cmd->direction = 0x01; + hci_req_add(&req, HCI_CONFIGURE_DATA_PATH, sizeof(*cmd) + vnd_len, cmd); + + err = hci_req_run(&req, config_data_path_complete); +error: + + kfree(cmd); + kfree(vnd_data); + return err; +} + static int stop_discovery(struct hci_request *req, unsigned long opt) { hci_dev_lock(req->hdev); |