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Bluetooth: Fix Set Extended (Scan Response) Data

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[ Upstream commit c9ed0a7077306f9d41d74fb006ab5dbada8349c5 ]

These command do have variable length and the length can go up to 251,
so this changes the struct to not use a fixed size and then when
creating the PDU only the actual length of the data send to the
controller.

Fixes: a0fb3726ba ("Bluetooth: Use Set ext adv/scan rsp data if controller supports")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Luiz Augusto von Dentz
2021-06-09 11:09:27 -07:00
committed by Greg Kroah-Hartman
parent c5fedfcc20
commit 4f5fc3be2c
3 changed files with 37 additions and 28 deletions
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6
include/net/bluetooth/hci.h
View File

@@ -1773,13 +1773,15 @@ struct hci_cp_ext_adv_set {
__u8 max_events;
} __packed;
#define HCI_MAX_EXT_AD_LENGTH 251
#define HCI_OP_LE_SET_EXT_ADV_DATA 0x2037
struct hci_cp_le_set_ext_adv_data {
__u8 handle;
__u8 operation;
__u8 frag_pref;
__u8 length;
__u8 data[HCI_MAX_AD_LENGTH];
__u8 data[];
} __packed;
#define HCI_OP_LE_SET_EXT_SCAN_RSP_DATA 0x2038
@@ -1788,7 +1790,7 @@ struct hci_cp_le_set_ext_scan_rsp_data {
__u8 operation;
__u8 frag_pref;
__u8 length;
__u8 data[HCI_MAX_AD_LENGTH];
__u8 data[];
} __packed;
#define LE_SET_ADV_DATA_OP_COMPLETE 0x03

8
include/net/bluetooth/hci_core.h
View File

@@ -226,9 +226,9 @@ struct adv_info {
__u16 remaining_time;
__u16 duration;
__u16 adv_data_len;
__u8 adv_data[HCI_MAX_AD_LENGTH];
__u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
__u16 scan_rsp_len;
__u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
__u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
__s8 tx_power;
bdaddr_t random_addr;
bool rpa_expired;
@@ -523,9 +523,9 @@ struct hci_dev {
DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
__s8 adv_tx_power;
__u8 adv_data[HCI_MAX_AD_LENGTH];
__u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
__u8 adv_data_len;
__u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
__u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
__u8 scan_rsp_data_len;
struct list_head adv_instances;