Bluetooth: Add local Extended Inquiry Response (EIR) support

This patch adds automated creation of the local EIR data based on what
16-bit UUIDs are registered and what the device name is. This should
cover the majority use cases, however things like 32/128-bit UUIDs, TX
power and Device ID will need to be added later to be on par with what
bluetoothd is capable of doing (without the Management interface).

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

2 files changed, 9 insertions, 0 deletions

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b989a8c3e01a..6846ec02dcb0 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -614,6 +614,14 @@ struct hci_cp_host_buffer_size {
 
 #define HCI_OP_WRITE_INQUIRY_MODE       0x0c45
 
+#define HCI_MAX_EIR_LENGTH              240
+
+#define HCI_OP_WRITE_EIR                0x0c52
+struct hci_cp_write_eir {
+        uint8_t         fec;
+        uint8_t         data[HCI_MAX_EIR_LENGTH];
+} __packed;
+
 #define HCI_OP_READ_SSP_MODE            0x0c55
 struct hci_rp_read_ssp_mode {
         __u8     status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 87bff518b54b..3b2f09df279a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -102,6 +102,7 @@ struct hci_dev {
         __u8            dev_type;
         bdaddr_t        bdaddr;
         __u8            dev_name[HCI_MAX_NAME_LENGTH];
+        __u8            eir[HCI_MAX_EIR_LENGTH];
         __u8            dev_class[3];
         __u8            major_class;
         __u8            minor_class;