From ef5803729c2323204f7372617ad97e55e94153b9 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 15 Dec 2011 00:47:38 +0200 Subject: [PATCH] Bluetooth: Move EIR and CoD update functions to a better position Due to the upcoming addition of a service cache timer the functions to update the EIR and CoD need to be higher up in mgmt.c in order to avoid unnecessary forward-declarations. This patch simply moves code around without any other changes in order to make subsequent patches more readable. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- net/bluetooth/mgmt.c | 346 +++++++++++++++++++++---------------------- 1 file changed, 173 insertions(+), 173 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 559b938f504c..cc4ea392ac6a 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -299,6 +299,179 @@ static u32 get_current_settings(struct hci_dev *hdev) return settings; } +#define EIR_FLAGS 0x01 /* flags */ +#define EIR_UUID16_SOME 0x02 /* 16-bit UUID, more available */ +#define EIR_UUID16_ALL 0x03 /* 16-bit UUID, all listed */ +#define EIR_UUID32_SOME 0x04 /* 32-bit UUID, more available */ +#define EIR_UUID32_ALL 0x05 /* 32-bit UUID, all listed */ +#define EIR_UUID128_SOME 0x06 /* 128-bit UUID, more available */ +#define EIR_UUID128_ALL 0x07 /* 128-bit UUID, all listed */ +#define EIR_NAME_SHORT 0x08 /* shortened local name */ +#define EIR_NAME_COMPLETE 0x09 /* complete local name */ +#define EIR_TX_POWER 0x0A /* transmit power level */ +#define EIR_DEVICE_ID 0x10 /* device ID */ + +#define PNP_INFO_SVCLASS_ID 0x1200 + +static u8 bluetooth_base_uuid[] = { + 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, + 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +static u16 get_uuid16(u8 *uuid128) +{ + u32 val; + int i; + + for (i = 0; i < 12; i++) { + if (bluetooth_base_uuid[i] != uuid128[i]) + return 0; + } + + memcpy(&val, &uuid128[12], 4); + + val = le32_to_cpu(val); + if (val > 0xffff) + return 0; + + return (u16) val; +} + +static void create_eir(struct hci_dev *hdev, u8 *data) +{ + u8 *ptr = data; + u16 eir_len = 0; + u16 uuid16_list[HCI_MAX_EIR_LENGTH / sizeof(u16)]; + int i, truncated = 0; + struct bt_uuid *uuid; + 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); + + eir_len += (name_len + 2); + ptr += (name_len + 2); + } + + memset(uuid16_list, 0, sizeof(uuid16_list)); + + /* Group all UUID16 types */ + list_for_each_entry(uuid, &hdev->uuids, list) { + u16 uuid16; + + uuid16 = get_uuid16(uuid->uuid); + if (uuid16 == 0) + return; + + if (uuid16 < 0x1100) + continue; + + if (uuid16 == PNP_INFO_SVCLASS_ID) + continue; + + /* Stop if not enough space to put next UUID */ + if (eir_len + 2 + sizeof(u16) > HCI_MAX_EIR_LENGTH) { + truncated = 1; + break; + } + + /* Check for duplicates */ + for (i = 0; uuid16_list[i] != 0; i++) + if (uuid16_list[i] == uuid16) + break; + + if (uuid16_list[i] == 0) { + uuid16_list[i] = uuid16; + eir_len += sizeof(u16); + } + } + + if (uuid16_list[0] != 0) { + u8 *length = ptr; + + /* EIR Data type */ + ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL; + + ptr += 2; + eir_len += 2; + + for (i = 0; uuid16_list[i] != 0; i++) { + *ptr++ = (uuid16_list[i] & 0x00ff); + *ptr++ = (uuid16_list[i] & 0xff00) >> 8; + } + + /* EIR Data length */ + *length = (i * sizeof(u16)) + 1; + } +} + +static int update_eir(struct hci_dev *hdev) +{ + struct hci_cp_write_eir cp; + + if (!(hdev->features[6] & LMP_EXT_INQ)) + return 0; + + if (hdev->ssp_mode == 0) + return 0; + + if (test_bit(HCI_SERVICE_CACHE, &hdev->flags)) + return 0; + + memset(&cp, 0, sizeof(cp)); + + create_eir(hdev, cp.data); + + if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) + return 0; + + memcpy(hdev->eir, cp.data, sizeof(cp.data)); + + return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp); +} + +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; +} + +static int update_class(struct hci_dev *hdev) +{ + u8 cod[3]; + + BT_DBG("%s", hdev->name); + + if (test_bit(HCI_SERVICE_CACHE, &hdev->flags)) + return 0; + + cod[0] = hdev->minor_class; + cod[1] = hdev->major_class; + cod[2] = get_service_classes(hdev); + + if (memcmp(cod, hdev->dev_class, 3) == 0) + return 0; + + return hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod); +} + static int read_controller_info(struct sock *sk, u16 index) { struct mgmt_rp_read_info rp; @@ -681,179 +854,6 @@ static int set_pairable(struct sock *sk, u16 index, unsigned char *data, return err; } -#define EIR_FLAGS 0x01 /* flags */ -#define EIR_UUID16_SOME 0x02 /* 16-bit UUID, more available */ -#define EIR_UUID16_ALL 0x03 /* 16-bit UUID, all listed */ -#define EIR_UUID32_SOME 0x04 /* 32-bit UUID, more available */ -#define EIR_UUID32_ALL 0x05 /* 32-bit UUID, all listed */ -#define EIR_UUID128_SOME 0x06 /* 128-bit UUID, more available */ -#define EIR_UUID128_ALL 0x07 /* 128-bit UUID, all listed */ -#define EIR_NAME_SHORT 0x08 /* shortened local name */ -#define EIR_NAME_COMPLETE 0x09 /* complete local name */ -#define EIR_TX_POWER 0x0A /* transmit power level */ -#define EIR_DEVICE_ID 0x10 /* device ID */ - -#define PNP_INFO_SVCLASS_ID 0x1200 - -static u8 bluetooth_base_uuid[] = { - 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, - 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -static u16 get_uuid16(u8 *uuid128) -{ - u32 val; - int i; - - for (i = 0; i < 12; i++) { - if (bluetooth_base_uuid[i] != uuid128[i]) - return 0; - } - - memcpy(&val, &uuid128[12], 4); - - val = le32_to_cpu(val); - if (val > 0xffff) - return 0; - - return (u16) val; -} - -static void create_eir(struct hci_dev *hdev, u8 *data) -{ - u8 *ptr = data; - u16 eir_len = 0; - u16 uuid16_list[HCI_MAX_EIR_LENGTH / sizeof(u16)]; - int i, truncated = 0; - struct bt_uuid *uuid; - 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); - - eir_len += (name_len + 2); - ptr += (name_len + 2); - } - - memset(uuid16_list, 0, sizeof(uuid16_list)); - - /* Group all UUID16 types */ - list_for_each_entry(uuid, &hdev->uuids, list) { - u16 uuid16; - - uuid16 = get_uuid16(uuid->uuid); - if (uuid16 == 0) - return; - - if (uuid16 < 0x1100) - continue; - - if (uuid16 == PNP_INFO_SVCLASS_ID) - continue; - - /* Stop if not enough space to put next UUID */ - if (eir_len + 2 + sizeof(u16) > HCI_MAX_EIR_LENGTH) { - truncated = 1; - break; - } - - /* Check for duplicates */ - for (i = 0; uuid16_list[i] != 0; i++) - if (uuid16_list[i] == uuid16) - break; - - if (uuid16_list[i] == 0) { - uuid16_list[i] = uuid16; - eir_len += sizeof(u16); - } - } - - if (uuid16_list[0] != 0) { - u8 *length = ptr; - - /* EIR Data type */ - ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL; - - ptr += 2; - eir_len += 2; - - for (i = 0; uuid16_list[i] != 0; i++) { - *ptr++ = (uuid16_list[i] & 0x00ff); - *ptr++ = (uuid16_list[i] & 0xff00) >> 8; - } - - /* EIR Data length */ - *length = (i * sizeof(u16)) + 1; - } -} - -static int update_eir(struct hci_dev *hdev) -{ - struct hci_cp_write_eir cp; - - if (!(hdev->features[6] & LMP_EXT_INQ)) - return 0; - - if (hdev->ssp_mode == 0) - return 0; - - if (test_bit(HCI_SERVICE_CACHE, &hdev->flags)) - return 0; - - memset(&cp, 0, sizeof(cp)); - - create_eir(hdev, cp.data); - - if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) - return 0; - - memcpy(hdev->eir, cp.data, sizeof(cp.data)); - - return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp); -} - -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; -} - -static int update_class(struct hci_dev *hdev) -{ - u8 cod[3]; - - BT_DBG("%s", hdev->name); - - if (test_bit(HCI_SERVICE_CACHE, &hdev->flags)) - return 0; - - cod[0] = hdev->minor_class; - cod[1] = hdev->major_class; - cod[2] = get_service_classes(hdev); - - if (memcmp(cod, hdev->dev_class, 3) == 0) - return 0; - - return hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod); -} - static int add_uuid(struct sock *sk, u16 index, unsigned char *data, u16 len) { struct mgmt_cp_add_uuid *cp; -- GitLab