Hi I am trying to do some small experiments that add local name in the scan response, should I use data[0] to store both adv_data and scan_rsp? I tried to add local name(’TEST’) in data[0] under mgmt_cp_add_advertising on https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/src/advertising.c#n484, it seems it does not work, any idea? Thanks Best wishes Yunhan static DBusMessage *refresh_advertisement(struct btd_adv_client *client) { struct mgmt_cp_add_advertising *cp; uint8_t param_len; uint8_t *adv_data; size_t adv_data_len; uint32_t flags = 0; uint8_t scan_rsp[] = { ’T’, ’E’, ’S’, ’T’ }; size_t scan_rsp_len = sizeof(scan_rsp); DBG("Refreshing advertisement: %s", client->path); if (client->type == AD_TYPE_PERIPHERAL) flags = MGMT_ADV_FLAG_CONNECTABLE | MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LOCAL_NAME; if (client->include_tx_power) flags |= MGMT_ADV_FLAG_TX_POWER; adv_data = bt_ad_generate(client->data, &adv_data_len); if (!adv_data || (adv_data_len > calc_max_adv_len(client, flags))) { error("Advertising data too long or couldn't be generated."); return g_dbus_create_error(client->reg, ERROR_INTERFACE ".InvalidLength", "Advertising data too long."); } param_len = sizeof(struct mgmt_cp_add_advertising) + adv_data_len + scan_rsp_len; cp = malloc0(param_len); if (!cp) { error("Couldn't allocate for MGMT!"); free(adv_data); return btd_error_failed(client->reg, "Failed"); } cp->flags = htobl(flags); cp->instance = client->instance; cp->adv_data_len = adv_data_len; cp->scan_rsp_len = scan_rsp_len; memcpy(cp->data, adv_data, adv_data_len); memcpy(cp->data + adv_data_len, scan_rsp_data, scan_rsp_len); free(adv_data); if (!mgmt_send(client->manager->mgmt, MGMT_OP_ADD_ADVERTISING, client->manager->mgmt_index, param_len, cp, add_adv_callback, client, NULL)) { DBG("Failed to add Advertising Data"); free(cp); return btd_error_failed(client->reg, "Failed"); } free(cp); return NULL; } Reference: In lib/mgmt.h, #define MGMT_OP_ADD_ADVERTISING 0x003E struct mgmt_cp_add_advertising { uint8_t instance; uint32_t flags; uint16_t duration; uint16_t timeout; uint8_t adv_data_len; uint8_t scan_rsp_len; uint8_t data[0]; } __packed; >From mgmt-api.txt, I am Add Advertising Command ======================= Command Code: 0x003e Controller Index: <controller id> Command Parameters: Instance (1 Octet) Flags (4 Octets) Duration (2 Octets) Timeout (2 Octets) Adv_Data_Len (1 Octet) Scan_Rsp_len (1 Octet) Adv_Data (0-255 Octets) Scan_Rsp (0-255 Octets) …... With the Flags value the type of advertising is controlled and the following flags are defined: 0 Switch into Connectable mode 1 Advertise as Discoverable 2 Advertise as Limited Discoverable 3 Add Flags field to Adv_Data 4 Add TX Power field to Adv_Data 5 Add Appearance field to Scan_Rsp 6 Add Local Name in Scan_Rsp -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
