Merge tag 'for-net-next-2023-08-11' of...

Merge tag 'for-net-next-2023-08-11' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

bluetooth-next pull request for net-next:

 - Add new VID/PID for Mediatek MT7922
 - Add support multiple BIS/BIG
 - Add support for Intel Gale Peak
 - Add support for Qualcomm WCN3988
 - Add support for BT_PKT_STATUS for ISO sockets
 - Various fixes for experimental ISO support
 - Load FW v2 for RTL8852C
 - Add support for NXP AW693 chipset
 - Add support for Mediatek MT2925

Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml

@@ -19,6 +19,7 @@ properties:
       - qcom,qca2066-bt
       - qcom,qca6174-bt
       - qcom,qca9377-bt
+      - qcom,wcn3988-bt
       - qcom,wcn3990-bt
       - qcom,wcn3991-bt
       - qcom,wcn3998-bt
@@ -111,6 +112,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,wcn3988-bt
               - qcom,wcn3990-bt
               - qcom,wcn3991-bt
               - qcom,wcn3998-bt

drivers/bluetooth/btbcm.c

@@ -24,6 +24,7 @@
 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
+#define BDADDR_BCM43430A1 (&(bdaddr_t) {{0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}})
 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
@@ -115,6 +116,9 @@ int btbcm_check_bdaddr(struct hci_dev *hdev)
 	 *
 	 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
 	 * with no configured address.
+	 *
+	 * The address AA:AA:AA:AA:AA:AA indicates a BCM43430A1 controller
+	 * with no configured address.
 	 */
 	if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
@@ -124,6 +128,7 @@ int btbcm_check_bdaddr(struct hci_dev *hdev)
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
+	    !bacmp(&bda->bdaddr, BDADDR_BCM43430A1) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
 		/* Try falling back to BDADDR EFI variable */
 		if (btbcm_set_bdaddr_from_efi(hdev) != 0) {

drivers/bluetooth/btintel.c

@@ -10,6 +10,7 @@
 #include <linux/firmware.h>
 #include <linux/regmap.h>
 #include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -27,6 +28,11 @@
 
 #define BTINTEL_PPAG_NAME   "PPAG"
 
+enum {
+	DSM_SET_WDISABLE2_DELAY = 1,
+	DSM_SET_RESET_METHOD = 3,
+};
+
 /* structure to store the PPAG data read from ACPI table */
 struct btintel_ppag {
 	u32	domain;
@@ -49,6 +55,10 @@ static struct {
 	u32        fw_build_num;
 } coredump_info;
 
+static const guid_t btintel_guid_dsm =
+	GUID_INIT(0xaa10f4e0, 0x81ac, 0x4233,
+		  0xab, 0xf6, 0x3b, 0x2a, 0xc5, 0x0e, 0x28, 0xd9);
+
 int btintel_check_bdaddr(struct hci_dev *hdev)
 {
 	struct hci_rp_read_bd_addr *bda;
@@ -470,6 +480,7 @@ static int btintel_version_info_tlv(struct hci_dev *hdev,
 	case 0x18:	/* Slr */
 	case 0x19:	/* Slr-F */
 	case 0x1b:      /* Mgr */
+	case 0x1c:	/* Gale Peak (GaP) */
 		break;
 	default:
 		bt_dev_err(hdev, "Unsupported Intel hardware variant (0x%x)",
@@ -2444,6 +2455,116 @@ static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver
 	kfree_skb(skb);
 }
 
+static int btintel_acpi_reset_method(struct hci_dev *hdev)
+{
+	int ret = 0;
+	acpi_status status;
+	union acpi_object *p, *ref;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+
+	status = acpi_evaluate_object(ACPI_HANDLE(GET_HCIDEV_DEV(hdev)), "_PRR", NULL, &buffer);
+	if (ACPI_FAILURE(status)) {
+		bt_dev_err(hdev, "Failed to run _PRR method");
+		ret = -ENODEV;
+		return ret;
+	}
+	p = buffer.pointer;
+
+	if (p->package.count != 1 || p->type != ACPI_TYPE_PACKAGE) {
+		bt_dev_err(hdev, "Invalid arguments");
+		ret = -EINVAL;
+		goto exit_on_error;
+	}
+
+	ref = &p->package.elements[0];
+	if (ref->type != ACPI_TYPE_LOCAL_REFERENCE) {
+		bt_dev_err(hdev, "Invalid object type: 0x%x", ref->type);
+		ret = -EINVAL;
+		goto exit_on_error;
+	}
+
+	status = acpi_evaluate_object(ref->reference.handle, "_RST", NULL, NULL);
+	if (ACPI_FAILURE(status)) {
+		bt_dev_err(hdev, "Failed to run_RST method");
+		ret = -ENODEV;
+		goto exit_on_error;
+	}
+
+exit_on_error:
+	kfree(buffer.pointer);
+	return ret;
+}
+
+static void btintel_set_dsm_reset_method(struct hci_dev *hdev,
+					 struct intel_version_tlv *ver_tlv)
+{
+	struct btintel_data *data = hci_get_priv(hdev);
+	acpi_handle handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
+	u8 reset_payload[4] = {0x01, 0x00, 0x01, 0x00};
+	union acpi_object *obj, argv4;
+	enum {
+		RESET_TYPE_WDISABLE2,
+		RESET_TYPE_VSEC
+	};
+
+	handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
+
+	if (!handle) {
+		bt_dev_dbg(hdev, "No support for bluetooth device in ACPI firmware");
+		return;
+	}
+
+	if (!acpi_has_method(handle, "_PRR")) {
+		bt_dev_err(hdev, "No support for _PRR ACPI method");
+		return;
+	}
+
+	switch (ver_tlv->cnvi_top & 0xfff) {
+	case 0x910: /* GalePeak2 */
+		reset_payload[2] = RESET_TYPE_VSEC;
+		break;
+	default:
+		/* WDISABLE2 is the default reset method */
+		reset_payload[2] = RESET_TYPE_WDISABLE2;
+
+		if (!acpi_check_dsm(handle, &btintel_guid_dsm, 0,
+				    BIT(DSM_SET_WDISABLE2_DELAY))) {
+			bt_dev_err(hdev, "No dsm support to set reset delay");
+			return;
+		}
+		argv4.integer.type = ACPI_TYPE_INTEGER;
+		/* delay required to toggle BT power */
+		argv4.integer.value = 160;
+		obj = acpi_evaluate_dsm(handle, &btintel_guid_dsm, 0,
+					DSM_SET_WDISABLE2_DELAY, &argv4);
+		if (!obj) {
+			bt_dev_err(hdev, "Failed to call dsm to set reset delay");
+			return;
+		}
+		ACPI_FREE(obj);
+	}
+
+	bt_dev_info(hdev, "DSM reset method type: 0x%02x", reset_payload[2]);
+
+	if (!acpi_check_dsm(handle, &btintel_guid_dsm, 0,
+			    DSM_SET_RESET_METHOD)) {
+		bt_dev_warn(hdev, "No support for dsm to set reset method");
+		return;
+	}
+	argv4.buffer.type = ACPI_TYPE_BUFFER;
+	argv4.buffer.length = sizeof(reset_payload);
+	argv4.buffer.pointer = reset_payload;
+
+	obj = acpi_evaluate_dsm(handle, &btintel_guid_dsm, 0,
+				DSM_SET_RESET_METHOD, &argv4);
+	if (!obj) {
+		bt_dev_err(hdev, "Failed to call dsm to set reset method");
+		return;
+	}
+	ACPI_FREE(obj);
+	data->acpi_reset_method = btintel_acpi_reset_method;
+}
+
 static int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
 					struct intel_version_tlv *ver)
 {
@@ -2528,6 +2649,7 @@ static void btintel_set_msft_opcode(struct hci_dev *hdev, u8 hw_variant)
 	case 0x18:
 	case 0x19:
 	case 0x1b:
+	case 0x1c:
 		hci_set_msft_opcode(hdev, 0xFC1E);
 		break;
 	default:
@@ -2742,6 +2864,7 @@ static int btintel_setup_combined(struct hci_dev *hdev)
 	case 0x18:
 	case 0x19:
 	case 0x1b:
+	case 0x1c:
 		/* Display version information of TLV type */
 		btintel_version_info_tlv(hdev, &ver_tlv);
 
@@ -2757,6 +2880,7 @@ static int btintel_setup_combined(struct hci_dev *hdev)
 		/* Setup MSFT Extension support */
 		btintel_set_msft_opcode(hdev,
 					INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
+		btintel_set_dsm_reset_method(hdev, &ver_tlv);
 
 		err = btintel_bootloader_setup_tlv(hdev, &ver_tlv);
 		btintel_register_devcoredump_support(hdev);
@@ -2824,6 +2948,80 @@ int btintel_configure_setup(struct hci_dev *hdev, const char *driver_name)
 }
 EXPORT_SYMBOL_GPL(btintel_configure_setup);
 
+static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct intel_tlv *tlv = (void *)&skb->data[5];
+
+	/* The first event is always an event type TLV */
+	if (tlv->type != INTEL_TLV_TYPE_ID)
+		goto recv_frame;
+
+	switch (tlv->val[0]) {
+	case INTEL_TLV_SYSTEM_EXCEPTION:
+	case INTEL_TLV_FATAL_EXCEPTION:
+	case INTEL_TLV_DEBUG_EXCEPTION:
+	case INTEL_TLV_TEST_EXCEPTION:
+		/* Generate devcoredump from exception */
+		if (!hci_devcd_init(hdev, skb->len)) {
+			hci_devcd_append(hdev, skb);
+			hci_devcd_complete(hdev);
+		} else {
+			bt_dev_err(hdev, "Failed to generate devcoredump");
+			kfree_skb(skb);
+		}
+		return 0;
+	default:
+		bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
+	}
+
+recv_frame:
+	return hci_recv_frame(hdev, skb);
+}
+
+int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_event_hdr *hdr = (void *)skb->data;
+	const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
+
+	if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
+	    hdr->plen > 0) {
+		const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
+		unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
+
+		if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
+			switch (skb->data[2]) {
+			case 0x02:
+				/* When switching to the operational firmware
+				 * the device sends a vendor specific event
+				 * indicating that the bootup completed.
+				 */
+				btintel_bootup(hdev, ptr, len);
+				break;
+			case 0x06:
+				/* When the firmware loading completes the
+				 * device sends out a vendor specific event
+				 * indicating the result of the firmware
+				 * loading.
+				 */
+				btintel_secure_send_result(hdev, ptr, len);
+				break;
+			}
+		}
+
+		/* Handle all diagnostics events separately. May still call
+		 * hci_recv_frame.
+		 */
+		if (len >= sizeof(diagnostics_hdr) &&
+		    memcmp(&skb->data[2], diagnostics_hdr,
+			   sizeof(diagnostics_hdr)) == 0) {
+			return btintel_diagnostics(hdev, skb);
+		}
+	}
+
+	return hci_recv_frame(hdev, skb);
+}
+EXPORT_SYMBOL_GPL(btintel_recv_event);
+
 void btintel_bootup(struct hci_dev *hdev, const void *ptr, unsigned int len)
 {
 	const struct intel_bootup *evt = ptr;

drivers/bluetooth/btintel.h

@@ -166,12 +166,14 @@ enum {
 	INTEL_BROKEN_SHUTDOWN_LED,
 	INTEL_ROM_LEGACY,
 	INTEL_ROM_LEGACY_NO_WBS_SUPPORT,
+	INTEL_ACPI_RESET_ACTIVE,
 
 	__INTEL_NUM_FLAGS,
 };
 
 struct btintel_data {
 	DECLARE_BITMAP(flags, __INTEL_NUM_FLAGS);
+	int (*acpi_reset_method)(struct hci_dev *hdev);
 };
 
 #define btintel_set_flag(hdev, nr)					\
@@ -220,6 +222,7 @@ int btintel_read_boot_params(struct hci_dev *hdev,
 int btintel_download_firmware(struct hci_dev *dev, struct intel_version *ver,
 			      const struct firmware *fw, u32 *boot_param);
 int btintel_configure_setup(struct hci_dev *hdev, const char *driver_name);
+int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb);
 void btintel_bootup(struct hci_dev *hdev, const void *ptr, unsigned int len);
 void btintel_secure_send_result(struct hci_dev *hdev,
 				const void *ptr, unsigned int len);

drivers/bluetooth/btmtk.c

@@ -53,10 +53,61 @@ struct btmtk_section_map {
 	};
 } __packed;
 
+static void btmtk_coredump(struct hci_dev *hdev)
+{
+	int err;
+
+	err = __hci_cmd_send(hdev, 0xfd5b, 0, NULL);
+	if (err < 0)
+		bt_dev_err(hdev, "Coredump failed (%d)", err);
+}
+
+static void btmtk_coredump_hdr(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct btmediatek_data *data = hci_get_priv(hdev);
+	char buf[80];
+
+	snprintf(buf, sizeof(buf), "Controller Name: 0x%X\n",
+		 data->dev_id);
+	skb_put_data(skb, buf, strlen(buf));
+
+	snprintf(buf, sizeof(buf), "Firmware Version: 0x%X\n",
+		 data->cd_info.fw_version);
+	skb_put_data(skb, buf, strlen(buf));
+
+	snprintf(buf, sizeof(buf), "Driver: %s\n",
+		 data->cd_info.driver_name);
+	skb_put_data(skb, buf, strlen(buf));
+
+	snprintf(buf, sizeof(buf), "Vendor: MediaTek\n");
+	skb_put_data(skb, buf, strlen(buf));
+}
+
+static void btmtk_coredump_notify(struct hci_dev *hdev, int state)
+{
+	struct btmediatek_data *data = hci_get_priv(hdev);
+
+	switch (state) {
+	case HCI_DEVCOREDUMP_IDLE:
+		data->cd_info.state = HCI_DEVCOREDUMP_IDLE;
+		break;
+	case HCI_DEVCOREDUMP_ACTIVE:
+		data->cd_info.state = HCI_DEVCOREDUMP_ACTIVE;
+		break;
+	case HCI_DEVCOREDUMP_TIMEOUT:
+	case HCI_DEVCOREDUMP_ABORT:
+	case HCI_DEVCOREDUMP_DONE:
+		data->cd_info.state = HCI_DEVCOREDUMP_IDLE;
+		btmtk_reset_sync(hdev);
+		break;
+	}
+}
+
 int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 			      wmt_cmd_sync_func_t wmt_cmd_sync)
 {
 	struct btmtk_hci_wmt_params wmt_params;
+	struct btmtk_patch_header *hdr;
 	struct btmtk_global_desc *globaldesc = NULL;
 	struct btmtk_section_map *sectionmap;
 	const struct firmware *fw;
@@ -75,9 +126,13 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 
 	fw_ptr = fw->data;
 	fw_bin_ptr = fw_ptr;
+	hdr = (struct btmtk_patch_header *)fw_ptr;
 	globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE);
 	section_num = le32_to_cpu(globaldesc->section_num);
 
+	bt_dev_info(hdev, "HW/SW Version: 0x%04x%04x, Build Time: %s",
+		    le16_to_cpu(hdr->hwver), le16_to_cpu(hdr->swver), hdr->datetime);
+
 	for (i = 0; i < section_num; i++) {
 		first_block = 1;
 		fw_ptr = fw_bin_ptr;
@@ -280,6 +335,83 @@ int btmtk_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
 }
 EXPORT_SYMBOL_GPL(btmtk_set_bdaddr);
 
+void btmtk_reset_sync(struct hci_dev *hdev)
+{
+	struct btmediatek_data *reset_work = hci_get_priv(hdev);
+	int err;
+
+	hci_dev_lock(hdev);
+
+	err = hci_cmd_sync_queue(hdev, reset_work->reset_sync, NULL, NULL);
+	if (err)
+		bt_dev_err(hdev, "failed to reset (%d)", err);
+
+	hci_dev_unlock(hdev);
+}
+EXPORT_SYMBOL_GPL(btmtk_reset_sync);
+
+int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
+			    u32 fw_version)
+{
+	struct btmediatek_data *data = hci_get_priv(hdev);
+
+	if (!IS_ENABLED(CONFIG_DEV_COREDUMP))
+		return -EOPNOTSUPP;
+
+	data->cd_info.fw_version = fw_version;
+	data->cd_info.state = HCI_DEVCOREDUMP_IDLE;
+	data->cd_info.driver_name = name;
+
+	return hci_devcd_register(hdev, btmtk_coredump, btmtk_coredump_hdr,
+				  btmtk_coredump_notify);
+}
+EXPORT_SYMBOL_GPL(btmtk_register_coredump);
+
+int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct btmediatek_data *data = hci_get_priv(hdev);
+	int err;
+
+	if (!IS_ENABLED(CONFIG_DEV_COREDUMP))
+		return 0;
+
+	switch (data->cd_info.state) {
+	case HCI_DEVCOREDUMP_IDLE:
+		err = hci_devcd_init(hdev, MTK_COREDUMP_SIZE);
+		if (err < 0)
+			break;
+		data->cd_info.cnt = 0;
+
+		/* It is supposed coredump can be done within 5 seconds */
+		schedule_delayed_work(&hdev->dump.dump_timeout,
+				      msecs_to_jiffies(5000));
+		fallthrough;
+	case HCI_DEVCOREDUMP_ACTIVE:
+	default:
+		err = hci_devcd_append(hdev, skb);
+		if (err < 0)
+			break;
+		data->cd_info.cnt++;
+
+		/* Mediatek coredump data would be more than MTK_COREDUMP_NUM */
+		if (data->cd_info.cnt > MTK_COREDUMP_NUM &&
+		    skb->len > MTK_COREDUMP_END_LEN)
+			if (!memcmp((char *)&skb->data[skb->len - MTK_COREDUMP_END_LEN],
+				    MTK_COREDUMP_END, MTK_COREDUMP_END_LEN - 1)) {
+				bt_dev_info(hdev, "Mediatek coredump end");
+				hci_devcd_complete(hdev);
+			}
+
+		break;
+	}
+
+	if (err < 0)
+		kfree_skb(skb);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(btmtk_process_coredump);
+
 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
 MODULE_AUTHOR("Mark Chen <mark-yw.chen@mediatek.com>");
 MODULE_DESCRIPTION("Bluetooth support for MediaTek devices ver " VERSION);
@@ -289,3 +421,4 @@ MODULE_FIRMWARE(FIRMWARE_MT7622);
 MODULE_FIRMWARE(FIRMWARE_MT7663);
 MODULE_FIRMWARE(FIRMWARE_MT7668);
 MODULE_FIRMWARE(FIRMWARE_MT7961);
+MODULE_FIRMWARE(FIRMWARE_MT7925);

drivers/bluetooth/btmtk.h

@@ -5,6 +5,7 @@
 #define FIRMWARE_MT7663		"mediatek/mt7663pr2h.bin"
 #define FIRMWARE_MT7668		"mediatek/mt7668pr2h.bin"
 #define FIRMWARE_MT7961		"mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin"
+#define FIRMWARE_MT7925		"mediatek/mt7925/BT_RAM_CODE_MT7925_1_1_hdr.bin"
 
 #define HCI_EV_WMT 0xe4
 #define HCI_WMT_MAX_EVENT_SIZE		64
@@ -21,6 +22,11 @@
 #define MT7921_DLSTATUS 0x7c053c10
 #define BT_DL_STATE BIT(1)
 
+#define MTK_COREDUMP_SIZE		(1024 * 1000)
+#define MTK_COREDUMP_END		"coredump end"
+#define MTK_COREDUMP_END_LEN		(sizeof(MTK_COREDUMP_END))
+#define MTK_COREDUMP_NUM		255
+
 enum {
 	BTMTK_WMT_PATCH_DWNLD = 0x1,
 	BTMTK_WMT_TEST = 0x2,
@@ -119,6 +125,21 @@ struct btmtk_hci_wmt_params {
 	u32 *status;
 };
 
+typedef int (*btmtk_reset_sync_func_t)(struct hci_dev *, void *);
+
+struct btmtk_coredump_info {
+	const char *driver_name;
+	u32 fw_version;
+	u16 cnt;
+	int state;
+};
+
+struct btmediatek_data {
+	u32 dev_id;
+	btmtk_reset_sync_func_t reset_sync;
+	struct btmtk_coredump_info cd_info;
+};
+
 typedef int (*wmt_cmd_sync_func_t)(struct hci_dev *,
 				   struct btmtk_hci_wmt_params *);
 
@@ -131,6 +152,13 @@ int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
 
 int btmtk_setup_firmware(struct hci_dev *hdev, const char *fwname,
 			 wmt_cmd_sync_func_t wmt_cmd_sync);
+
+void btmtk_reset_sync(struct hci_dev *hdev);
+
+int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
+			    u32 fw_version);
+
+int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb);
 #else
 
 static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
@@ -151,4 +179,18 @@ static int btmtk_setup_firmware(struct hci_dev *hdev, const char *fwname,
 	return -EOPNOTSUPP;
 }
 
+static void btmtk_reset_sync(struct hci_dev *hdev)
+{
+}
+
+static int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
+				   u32 fw_version)
+{
+	return -EOPNOTSUPP;
+}
+
+static int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	return -EOPNOTSUPP;
+}
 #endif

drivers/bluetooth/btmtkuart.c

@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>

drivers/bluetooth/btnxpuart.c

@@ -34,11 +34,20 @@
 #define FIRMWARE_W9098		"nxp/uartuart9098_bt_v1.bin"
 #define FIRMWARE_IW416		"nxp/uartiw416_bt_v0.bin"
 #define FIRMWARE_IW612		"nxp/uartspi_n61x_v1.bin.se"
+#define FIRMWARE_AW693		"nxp/uartaw693_bt.bin"
+#define FIRMWARE_SECURE_AW693	"nxp/uartaw693_bt.bin.se"
 #define FIRMWARE_HELPER		"nxp/helper_uart_3000000.bin"
 
 #define CHIP_ID_W9098		0x5c03
 #define CHIP_ID_IW416		0x7201
 #define CHIP_ID_IW612		0x7601
+#define CHIP_ID_AW693		0x8200
+
+#define FW_SECURE_MASK		0xc0
+#define FW_OPEN			0x00
+#define FW_AUTH_ILLEGAL		0x40
+#define FW_AUTH_PLAIN		0x80
+#define FW_AUTH_ENC		0xc0
 
 #define HCI_NXP_PRI_BAUDRATE	115200
 #define HCI_NXP_SEC_BAUDRATE	3000000
@@ -665,6 +674,9 @@ static int nxp_request_firmware(struct hci_dev *hdev, const char *fw_name)
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
 	int err = 0;
 
+	if (!fw_name)
+		return -ENOENT;
+
 	if (!strlen(nxpdev->fw_name)) {
 		snprintf(nxpdev->fw_name, MAX_FW_FILE_NAME_LEN, "%s", fw_name);
 
@@ -812,7 +824,8 @@ static int nxp_recv_fw_req_v1(struct hci_dev *hdev, struct sk_buff *skb)
 	return 0;
 }
 
-static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid)
+static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
+					 u8 loader_ver)
 {
 	char *fw_name = NULL;
 
@@ -826,6 +839,14 @@ static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid)
 	case CHIP_ID_IW612:
 		fw_name = FIRMWARE_IW612;
 		break;
+	case CHIP_ID_AW693:
+		if ((loader_ver & FW_SECURE_MASK) == FW_OPEN)
+			fw_name = FIRMWARE_AW693;
+		else if ((loader_ver & FW_SECURE_MASK) != FW_AUTH_ILLEGAL)
+			fw_name = FIRMWARE_SECURE_AW693;
+		else
+			bt_dev_err(hdev, "Illegal loader version %02x", loader_ver);
+		break;
 	default:
 		bt_dev_err(hdev, "Unknown chip signature %04x", chipid);
 		break;
@@ -838,13 +859,15 @@ static int nxp_recv_chip_ver_v3(struct hci_dev *hdev, struct sk_buff *skb)
 	struct v3_start_ind *req = skb_pull_data(skb, sizeof(*req));
 	struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
 	u16 chip_id;
+	u8 loader_ver;
 
 	if (!process_boot_signature(nxpdev))
 		goto free_skb;
 
 	chip_id = le16_to_cpu(req->chip_id);
+	loader_ver = req->loader_ver;
 	if (!nxp_request_firmware(hdev, nxp_get_fw_name_from_chipid(hdev,
-								    chip_id)))
+								    chip_id, loader_ver)))
 		nxp_send_ack(NXP_ACK_V3, hdev);
 
 free_skb:

drivers/bluetooth/btqca.c

@@ -594,6 +594,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	/* Firmware files to download are based on ROM version.
 	 * ROM version is derived from last two bytes of soc_ver.
 	 */
+	if (soc_type == QCA_WCN3988)
+		rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
+	else
 		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
 
 	if (soc_type == QCA_WCN6750)
@@ -601,7 +604,10 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 
 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
-	if (qca_is_wcn399x(soc_type)) {
+	if (soc_type == QCA_WCN3988) {
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/apbtfw%02x.tlv", rom_ver);
+	} else if (qca_is_wcn399x(soc_type)) {
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/crbtfw%02x.tlv", rom_ver);
 	} else if (soc_type == QCA_QCA6390) {
@@ -636,6 +642,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 	if (firmware_name)
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/%s", firmware_name);
+	else if (soc_type == QCA_WCN3988)
+		snprintf(config.fwname, sizeof(config.fwname),
+			 "qca/apnv%02x.bin", rom_ver);
 	else if (qca_is_wcn399x(soc_type)) {
 		if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
 			snprintf(config.fwname, sizeof(config.fwname),

drivers/bluetooth/btqca.h

@@ -142,6 +142,7 @@ enum qca_btsoc_type {
 	QCA_INVALID = -1,
 	QCA_AR3002,
 	QCA_ROME,
+	QCA_WCN3988,
 	QCA_WCN3990,
 	QCA_WCN3998,
 	QCA_WCN3991,
@@ -162,8 +163,15 @@ int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);
 static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
 {
-	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3991 ||
-	       soc_type == QCA_WCN3998;
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+		return true;
+	default:
+		return false;
+	}
 }
 static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type)
 {

drivers/bluetooth/btrtl.h

@@ -109,8 +109,16 @@ enum {
 	__REALTEK_NUM_FLAGS,
 };
 
+struct rtl_dump_info {
+	const char *driver_name;
+	char *controller;
+	u32  fw_version;
+};
+
 struct btrealtek_data {
 	DECLARE_BITMAP(flags, __REALTEK_NUM_FLAGS);
+
+	struct rtl_dump_info rtl_dump;
 };
 
 #define btrealtek_set_flag(hdev, nr)					\
@@ -139,6 +147,7 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 			    struct btrtl_device_info *btrtl_dev,
 			    unsigned int *controller_baudrate,
 			    u32 *device_baudrate, bool *flow_control);
+void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name);
 
 #else
 
@@ -182,4 +191,8 @@ static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
 	return -ENOENT;
 }
 
+static inline void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
+{
+}
+
 #endif

drivers/bluetooth/hci_h5.c

@@ -11,7 +11,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/pm_runtime.h>
 #include <linux/serdev.h>
 #include <linux/skbuff.h>

drivers/bluetooth/hci_ldisc.c

@@ -770,7 +770,8 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		break;
 
 	case HCIUARTGETPROTO:
-		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+		if (test_bit(HCI_UART_PROTO_SET, &hu->flags) &&
+		    test_bit(HCI_UART_PROTO_READY, &hu->flags))
 			err = hu->proto->id;
 		else
 			err = -EUNATCH;

drivers/bluetooth/hci_nokia.c

@@ -734,7 +734,11 @@ static int nokia_bluetooth_serdev_probe(struct serdev_device *serdev)
 		return err;
 	}
 
-	clk_prepare_enable(sysclk);
+	err = clk_prepare_enable(sysclk);
+	if (err) {
+		dev_err(dev, "could not enable sysclk: %d", err);
+		return err;
+	}
 	btdev->sysclk_speed = clk_get_rate(sysclk);
 	clk_disable_unprepare(sysclk);
 

include/net/bluetooth/bluetooth.h

@@ -386,6 +386,7 @@ struct bt_sock {
 enum {
 	BT_SK_DEFER_SETUP,
 	BT_SK_SUSPEND,
+	BT_SK_PKT_STATUS
 };
 
 struct bt_sock_list {
@@ -400,6 +401,8 @@ int  bt_sock_register(int proto, const struct net_proto_family *ops);
 void bt_sock_unregister(int proto);
 void bt_sock_link(struct bt_sock_list *l, struct sock *s);
 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
+struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
+			   struct proto *prot, int proto, gfp_t prio, int kern);
 int  bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		     int flags);
 int  bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -430,10 +433,6 @@ struct l2cap_ctrl {
 	struct l2cap_chan *chan;
 };
 
-struct sco_ctrl {
-	u8	pkt_status;
-};
-
 struct hci_dev;
 
 typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode);
@@ -464,16 +463,18 @@ struct bt_skb_cb {
 	u8 force_active;
 	u16 expect;
 	u8 incoming:1;
+	u8 pkt_status:2;
 	union {
 		struct l2cap_ctrl l2cap;
-		struct sco_ctrl sco;
 		struct hci_ctrl hci;
 		struct mgmt_ctrl mgmt;
+		struct scm_creds creds;
 	};
 };
 #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
 
 #define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
+#define hci_skb_pkt_status(skb) bt_cb((skb))->pkt_status
 #define hci_skb_expect(skb) bt_cb((skb))->expect
 #define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode
 #define hci_skb_event(skb) bt_cb((skb))->hci.req_event

include/net/bluetooth/hci.h

@@ -309,6 +309,16 @@ enum {
 	 * to support it.
 	 */
 	HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT,
+
+	/* When this quirk is set, MSFT extension monitor tracking by
+	 * address filter is supported. Since tracking quantity of each
+	 * pattern is limited, this feature supports tracking multiple
+	 * devices concurrently if controller supports multiple
+	 * address filters.
+	 *
+	 * This quirk must be set before hci_register_dev is called.
+	 */
+	HCI_QUIRK_USE_MSFT_EXT_ADDRESS_FILTER,
 };
 
 /* HCI device flags */
@@ -577,6 +587,7 @@ enum {
 #define HCI_LE_CIS_CENTRAL		0x10
 #define HCI_LE_CIS_PERIPHERAL		0x20
 #define HCI_LE_ISO_BROADCASTER		0x40
+#define HCI_LE_ISO_SYNC_RECEIVER	0x80
 
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000

include/net/bluetooth/hci_core.h

@@ -321,8 +321,8 @@ struct adv_monitor {
 
 #define HCI_MAX_SHORT_NAME_LENGTH	10
 
-#define HCI_CONN_HANDLE_UNSET		0xffff
 #define HCI_CONN_HANDLE_MAX		0x0eff
+#define HCI_CONN_HANDLE_UNSET(_handle)	(_handle > HCI_CONN_HANDLE_MAX)
 
 /* Min encryption key size to match with SMP */
 #define HCI_MIN_ENC_KEY_SIZE		7
@@ -739,6 +739,7 @@ struct hci_conn {
 	unsigned long	flags;
 
 	enum conn_reasons conn_reason;
+	__u8		abort_reason;
 
 	__u32		clock;
 	__u16		clock_accuracy;
@@ -758,7 +759,6 @@ struct hci_conn {
 	struct delayed_work auto_accept_work;
 	struct delayed_work idle_work;
 	struct delayed_work le_conn_timeout;
-	struct work_struct  le_scan_cleanup;
 
 	struct device	dev;
 	struct dentry	*debugfs;
@@ -974,6 +974,10 @@ enum {
 	HCI_CONN_SCANNING,
 	HCI_CONN_AUTH_FAILURE,
 	HCI_CONN_PER_ADV,
+	HCI_CONN_BIG_CREATED,
+	HCI_CONN_CREATE_CIS,
+	HCI_CONN_BIG_SYNC,
+	HCI_CONN_BIG_SYNC_FAILED,
 };
 
 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
@@ -1093,6 +1097,29 @@ static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 }
 
 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
+							bdaddr_t *ba, __u8 bis)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn  *c;
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(c, &h->list, list) {
+		if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
+			continue;
+
+		if (c->iso_qos.bcast.bis == bis) {
+			rcu_read_unlock();
+			return c;
+		}
+	}
+	rcu_read_unlock();
+
+	return NULL;
+}
+
+static inline struct hci_conn *
+hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
 				 bdaddr_t *ba,
 				 __u8 big, __u8 bis)
 {
@@ -1102,10 +1129,12 @@ static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(c, &h->list, list) {
-		if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
+		if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
+			!test_bit(HCI_CONN_PER_ADV, &c->flags))
 			continue;
 
-		if (c->iso_qos.bcast.big == big && c->iso_qos.bcast.bis == bis) {
+		if (c->iso_qos.bcast.big == big &&
+		    c->iso_qos.bcast.bis == bis) {
 			rcu_read_unlock();
 			return c;
 		}
@@ -1190,7 +1219,7 @@ static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(c, &h->list, list) {
-		if (c->type != ISO_LINK)
+		if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
 			continue;
 
 		/* Match CIG ID if set */
@@ -1222,7 +1251,7 @@ static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(c, &h->list, list) {
-		if (c->type != ISO_LINK)
+		if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
 			continue;
 
 		if (handle == c->iso_qos.ucast.cig) {
@@ -1259,6 +1288,29 @@ static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
 	return NULL;
 }
 
+static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(struct hci_dev *hdev,
+							__u8 handle)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn  *c;
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(c, &h->list, list) {
+		if (c->type != ISO_LINK)
+			continue;
+
+		if (handle == c->iso_qos.bcast.big) {
+			rcu_read_unlock();
+			return c;
+		}
+	}
+
+	rcu_read_unlock();
+
+	return NULL;
+}
+
 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 							__u8 type, __u16 state)
 {
@@ -1320,11 +1372,33 @@ static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
 	return NULL;
 }
 
+/* Returns true if an le connection is in the scanning state */
+static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn  *c;
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(c, &h->list, list) {
+		if (c->type == LE_LINK && c->state == BT_CONNECT &&
+		    test_bit(HCI_CONN_SCANNING, &c->flags)) {
+			rcu_read_unlock();
+			return true;
+		}
+	}
+
+	rcu_read_unlock();
+
+	return false;
+}
+
 int hci_disconnect(struct hci_conn *conn, __u8 reason);
 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 bool hci_iso_setup_path(struct hci_conn *conn);
-int hci_le_create_cis(struct hci_conn *conn);
+int hci_le_create_cis_pending(struct hci_dev *hdev);
+int hci_conn_check_create_cis(struct hci_conn *conn);
 
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
 			      u8 role);
@@ -1351,6 +1425,9 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
 				 __u16 setting, struct bt_codec *codec);
 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
 			      __u8 dst_type, struct bt_iso_qos *qos);
+struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
+			      struct bt_iso_qos *qos,
+			      __u8 base_len, __u8 *base);
 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
 				 __u8 dst_type, struct bt_iso_qos *qos);
 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
@@ -1369,6 +1446,7 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 
 void hci_conn_failed(struct hci_conn *conn, u8 status);
+u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
 
 /*
  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
@@ -1745,6 +1823,10 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 /* Extended advertising support */
 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
 
+/* Maximum advertising length */
+#define max_adv_len(dev) \
+	(ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
+
 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
  *
  * C24: Mandatory if the LE Controller supports Connection State and either
@@ -1765,6 +1847,7 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 #define cis_peripheral_capable(dev) \
 	((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
+#define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
 
 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
 	(!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))

include/net/bluetooth/hci_sync.h

@@ -5,6 +5,9 @@
  * Copyright (C) 2021 Intel Corporation
  */
 
+#define UINT_PTR(_handle)		((void *)((uintptr_t)_handle))
+#define PTR_UINT(_ptr)			((uintptr_t)((void *)_ptr))
+
 typedef int (*hci_cmd_sync_work_func_t)(struct hci_dev *hdev, void *data);
 typedef void (*hci_cmd_sync_work_destroy_t)(struct hci_dev *hdev, void *data,
 					    int err);
@@ -124,7 +127,7 @@ int hci_abort_conn_sync(struct hci_dev *hdev, struct hci_conn *conn, u8 reason);
 
 int hci_le_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn);
 
-int hci_le_create_cis_sync(struct hci_dev *hdev, struct hci_conn *conn);
+int hci_le_create_cis_sync(struct hci_dev *hdev);
 
 int hci_le_remove_cig_sync(struct hci_dev *hdev, u8 handle);
 

include/net/bluetooth/mgmt.h

@@ -111,6 +111,8 @@ struct mgmt_rp_read_index_list {
 #define MGMT_SETTING_WIDEBAND_SPEECH	BIT(17)
 #define MGMT_SETTING_CIS_CENTRAL	BIT(18)
 #define MGMT_SETTING_CIS_PERIPHERAL	BIT(19)
+#define MGMT_SETTING_ISO_BROADCASTER	BIT(20)
+#define MGMT_SETTING_ISO_SYNC_RECEIVER	BIT(21)
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0

include/net/bluetooth/sco.h

@@ -46,6 +46,4 @@ struct sco_conninfo {
 	__u8  dev_class[3];
 };
 
-#define SCO_CMSG_PKT_STATUS	0x01
-
 #endif /* __SCO_H */

net/bluetooth/af_bluetooth.c

@@ -140,6 +140,35 @@ static int bt_sock_create(struct net *net, struct socket *sock, int proto,
 	return err;
 }
 
+struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
+			   struct proto *prot, int proto, gfp_t prio, int kern)
+{
+	struct sock *sk;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, prot, kern);
+	if (!sk)
+		return NULL;
+
+	sock_init_data(sock, sk);
+	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = proto;
+	sk->sk_state    = BT_OPEN;
+
+	/* Init peer information so it can be properly monitored */
+	if (!kern) {
+		spin_lock(&sk->sk_peer_lock);
+		sk->sk_peer_pid  = get_pid(task_tgid(current));
+		sk->sk_peer_cred = get_current_cred();
+		spin_unlock(&sk->sk_peer_lock);
+	}
+
+	return sk;
+}
+EXPORT_SYMBOL(bt_sock_alloc);
+
 void bt_sock_link(struct bt_sock_list *l, struct sock *sk)
 {
 	write_lock(&l->lock);
@@ -158,6 +187,9 @@ EXPORT_SYMBOL(bt_sock_unlink);
 
 void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
 {
+	const struct cred *old_cred;
+	struct pid *old_pid;
+
 	BT_DBG("parent %p, sk %p", parent, sk);
 
 	sock_hold(sk);
@@ -170,6 +202,19 @@ void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
 	list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q);
 	bt_sk(sk)->parent = parent;
 
+	/* Copy credentials from parent since for incoming connections the
+	 * socket is allocated by the kernel.
+	 */
+	spin_lock(&sk->sk_peer_lock);
+	old_pid = sk->sk_peer_pid;
+	old_cred = sk->sk_peer_cred;
+	sk->sk_peer_pid = get_pid(parent->sk_peer_pid);
+	sk->sk_peer_cred = get_cred(parent->sk_peer_cred);
+	spin_unlock(&sk->sk_peer_lock);
+
+	put_pid(old_pid);
+	put_cred(old_cred);
+
 	if (bh)
 		bh_unlock_sock(sk);
 	else
@@ -288,8 +333,12 @@ int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 			bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
 						&msg->msg_namelen);
 
-		if (bt_sk(sk)->skb_put_cmsg)
-			bt_sk(sk)->skb_put_cmsg(skb, msg, sk);
+		if (test_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags)) {
+			u8 pkt_status = hci_skb_pkt_status(skb);
+
+			put_cmsg(msg, SOL_BLUETOOTH, BT_SCM_PKT_STATUS,
+				 sizeof(pkt_status), &pkt_status);
+		}
 	}
 
 	skb_free_datagram(sk, skb);

net/bluetooth/amp.h

@@ -28,7 +28,6 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
 
 int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type);
 
-void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
 void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
 void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
 void amp_read_loc_assoc_final_data(struct hci_dev *hdev,

net/bluetooth/bnep/sock.c

@@ -205,21 +205,13 @@ static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, kern);
+	sk = bt_sock_alloc(net, sock, &bnep_proto, protocol, GFP_ATOMIC, kern);
 	if (!sk)
 		return -ENOMEM;
 
-	sock_init_data(sock, sk);
-
 	sock->ops = &bnep_sock_ops;
-
 	sock->state = SS_UNCONNECTED;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = protocol;
-	sk->sk_state	= BT_OPEN;
-
 	bt_sock_link(&bnep_sk_list, sk);
 	return 0;
 }

net/bluetooth/coredump.c

@@ -100,7 +100,6 @@ void hci_devcd_reset(struct hci_dev *hdev)
 /* Call with hci_dev_lock only. */
 static void hci_devcd_free(struct hci_dev *hdev)
 {
-	if (hdev->dump.head)
 	vfree(hdev->dump.head);
 
 	hci_devcd_reset(hdev);

net/bluetooth/hci_core.c

@@ -1074,9 +1074,9 @@ void hci_uuids_clear(struct hci_dev *hdev)
 
 void hci_link_keys_clear(struct hci_dev *hdev)
 {
-	struct link_key *key;
+	struct link_key *key, *tmp;
 
-	list_for_each_entry(key, &hdev->link_keys, list) {
+	list_for_each_entry_safe(key, tmp, &hdev->link_keys, list) {
 		list_del_rcu(&key->list);
 		kfree_rcu(key, rcu);
 	}
@@ -1084,9 +1084,9 @@ void hci_link_keys_clear(struct hci_dev *hdev)
 
 void hci_smp_ltks_clear(struct hci_dev *hdev)
 {
-	struct smp_ltk *k;
+	struct smp_ltk *k, *tmp;
 
-	list_for_each_entry(k, &hdev->long_term_keys, list) {
+	list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) {
 		list_del_rcu(&k->list);
 		kfree_rcu(k, rcu);
 	}
@@ -1094,9 +1094,9 @@ void hci_smp_ltks_clear(struct hci_dev *hdev)
 
 void hci_smp_irks_clear(struct hci_dev *hdev)
 {
-	struct smp_irk *k;
+	struct smp_irk *k, *tmp;
 
-	list_for_each_entry(k, &hdev->identity_resolving_keys, list) {
+	list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) {
 		list_del_rcu(&k->list);
 		kfree_rcu(k, rcu);
 	}
@@ -1104,9 +1104,9 @@ void hci_smp_irks_clear(struct hci_dev *hdev)
 
 void hci_blocked_keys_clear(struct hci_dev *hdev)
 {
-	struct blocked_key *b;
+	struct blocked_key *b, *tmp;
 
-	list_for_each_entry(b, &hdev->blocked_keys, list) {
+	list_for_each_entry_safe(b, tmp, &hdev->blocked_keys, list) {
 		list_del_rcu(&b->list);
 		kfree_rcu(b, rcu);
 	}
@@ -1949,15 +1949,15 @@ int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor)
 
 	switch (hci_get_adv_monitor_offload_ext(hdev)) {
 	case HCI_ADV_MONITOR_EXT_NONE:
-		bt_dev_dbg(hdev, "%s add monitor %d status %d", hdev->name,
+		bt_dev_dbg(hdev, "add monitor %d status %d",
 			   monitor->handle, status);
 		/* Message was not forwarded to controller - not an error */
 		break;
 
 	case HCI_ADV_MONITOR_EXT_MSFT:
 		status = msft_add_monitor_pattern(hdev, monitor);
-		bt_dev_dbg(hdev, "%s add monitor %d msft status %d", hdev->name,
-			   monitor->handle, status);
+		bt_dev_dbg(hdev, "add monitor %d msft status %d",
+			   handle, status);
 		break;
 	}
 
@@ -1976,15 +1976,15 @@ static int hci_remove_adv_monitor(struct hci_dev *hdev,
 
 	switch (hci_get_adv_monitor_offload_ext(hdev)) {
 	case HCI_ADV_MONITOR_EXT_NONE: /* also goes here when powered off */
-		bt_dev_dbg(hdev, "%s remove monitor %d status %d", hdev->name,
+		bt_dev_dbg(hdev, "remove monitor %d status %d",
 			   monitor->handle, status);
 		goto free_monitor;
 
 	case HCI_ADV_MONITOR_EXT_MSFT:
 		handle = monitor->handle;
 		status = msft_remove_monitor(hdev, monitor);
-		bt_dev_dbg(hdev, "%s remove monitor %d msft status %d",
-			   hdev->name, handle, status);
+		bt_dev_dbg(hdev, "remove monitor %d msft status %d",
+			   handle, status);
 		break;
 	}
 
@@ -2436,6 +2436,9 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action,
 	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
 		return NOTIFY_DONE;
 
+	/* To avoid a potential race with hci_unregister_dev. */
+	hci_dev_hold(hdev);
+
 	if (action == PM_SUSPEND_PREPARE)
 		ret = hci_suspend_dev(hdev);
 	else if (action == PM_POST_SUSPEND)
@@ -2445,6 +2448,7 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action,
 		bt_dev_err(hdev, "Suspend notifier action (%lu) failed: %d",
 			   action, ret);
 
+	hci_dev_put(hdev);
 	return NOTIFY_DONE;
 }
 
@@ -3891,7 +3895,7 @@ static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (conn) {
 		/* Send to upper protocol */
-		bt_cb(skb)->sco.pkt_status = flags & 0x03;
+		hci_skb_pkt_status(skb) = flags & 0x03;
 		sco_recv_scodata(conn, skb);
 		return;
 	} else {

net/bluetooth/hci_debugfs.c

@@ -22,6 +22,7 @@
 */
 
 #include <linux/debugfs.h>
+#include <linux/kstrtox.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -1152,7 +1153,7 @@ static ssize_t force_no_mitm_write(struct file *file,
 		return -EFAULT;
 
 	buf[buf_size] = '\0';
-	if (strtobool(buf, &enable))
+	if (kstrtobool(buf, &enable))
 		return -EINVAL;
 
 	if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM))

net/bluetooth/hci_request.c

@@ -629,27 +629,6 @@ static void hci_req_start_scan(struct hci_request *req, u8 type, u16 interval,
 	}
 }
 
-/* Returns true if an le connection is in the scanning state */
-static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
-{
-	struct hci_conn_hash *h = &hdev->conn_hash;
-	struct hci_conn  *c;
-
-	rcu_read_lock();
-
-	list_for_each_entry_rcu(c, &h->list, list) {
-		if (c->type == LE_LINK && c->state == BT_CONNECT &&
-		    test_bit(HCI_CONN_SCANNING, &c->flags)) {
-			rcu_read_unlock();
-			return true;
-		}
-	}
-
-	rcu_read_unlock();
-
-	return false;
-}
-
 static void set_random_addr(struct hci_request *req, bdaddr_t *rpa);
 static int hci_update_random_address(struct hci_request *req,
 				     bool require_privacy, bool use_rpa,

net/bluetooth/hci_sock.c

@@ -264,6 +264,53 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 	kfree_skb(skb_copy);
 }
 
+static void hci_sock_copy_creds(struct sock *sk, struct sk_buff *skb)
+{
+	struct scm_creds *creds;
+
+	if (!sk || WARN_ON(!skb))
+		return;
+
+	creds = &bt_cb(skb)->creds;
+
+	/* Check if peer credentials is set */
+	if (!sk->sk_peer_pid) {
+		/* Check if parent peer credentials is set */
+		if (bt_sk(sk)->parent && bt_sk(sk)->parent->sk_peer_pid)
+			sk = bt_sk(sk)->parent;
+		else
+			return;
+	}
+
+	/* Check if scm_creds already set */
+	if (creds->pid == pid_vnr(sk->sk_peer_pid))
+		return;
+
+	memset(creds, 0, sizeof(*creds));
+
+	creds->pid = pid_vnr(sk->sk_peer_pid);
+	if (sk->sk_peer_cred) {
+		creds->uid = sk->sk_peer_cred->uid;
+		creds->gid = sk->sk_peer_cred->gid;
+	}
+}
+
+static struct sk_buff *hci_skb_clone(struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+
+	if (!skb)
+		return NULL;
+
+	nskb = skb_clone(skb, GFP_ATOMIC);
+	if (!nskb)
+		return NULL;
+
+	hci_sock_copy_creds(skb->sk, nskb);
+
+	return nskb;
+}
+
 /* Send frame to sockets with specific channel */
 static void __hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
 				  int flag, struct sock *skip_sk)
@@ -289,7 +336,7 @@ static void __hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
 		if (hci_pi(sk)->channel != channel)
 			continue;
 
-		nskb = skb_clone(skb, GFP_ATOMIC);
+		nskb = hci_skb_clone(skb);
 		if (!nskb)
 			continue;
 
@@ -356,6 +403,8 @@ void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb)
 	if (!skb_copy)
 		return;
 
+	hci_sock_copy_creds(skb->sk, skb_copy);
+
 	/* Put header before the data */
 	hdr = skb_push(skb_copy, HCI_MON_HDR_SIZE);
 	hdr->opcode = opcode;
@@ -531,10 +580,12 @@ static struct sk_buff *create_monitor_ctrl_open(struct sock *sk)
 		return NULL;
 	}
 
-	skb = bt_skb_alloc(14 + TASK_COMM_LEN , GFP_ATOMIC);
+	skb = bt_skb_alloc(14 + TASK_COMM_LEN, GFP_ATOMIC);
 	if (!skb)
 		return NULL;
 
+	hci_sock_copy_creds(sk, skb);
+
 	flags = hci_sock_test_flag(sk, HCI_SOCK_TRUSTED) ? 0x1 : 0x0;
 
 	put_unaligned_le32(hci_pi(sk)->cookie, skb_put(skb, 4));
@@ -580,6 +631,8 @@ static struct sk_buff *create_monitor_ctrl_close(struct sock *sk)
 	if (!skb)
 		return NULL;
 
+	hci_sock_copy_creds(sk, skb);
+
 	put_unaligned_le32(hci_pi(sk)->cookie, skb_put(skb, 4));
 
 	__net_timestamp(skb);
@@ -606,6 +659,8 @@ static struct sk_buff *create_monitor_ctrl_command(struct sock *sk, u16 index,
 	if (!skb)
 		return NULL;
 
+	hci_sock_copy_creds(sk, skb);
+
 	put_unaligned_le32(hci_pi(sk)->cookie, skb_put(skb, 4));
 	put_unaligned_le16(opcode, skb_put(skb, 2));
 
@@ -638,6 +693,8 @@ send_monitor_note(struct sock *sk, const char *fmt, ...)
 	if (!skb)
 		return;
 
+	hci_sock_copy_creds(sk, skb);
+
 	va_start(args, fmt);
 	vsprintf(skb_put(skb, len), fmt, args);
 	*(u8 *)skb_put(skb, 1) = 0;
@@ -1494,6 +1551,7 @@ static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
 static int hci_sock_recvmsg(struct socket *sock, struct msghdr *msg,
 			    size_t len, int flags)
 {
+	struct scm_cookie scm;
 	struct sock *sk = sock->sk;
 	struct sk_buff *skb;
 	int copied, err;
@@ -1538,11 +1596,16 @@ static int hci_sock_recvmsg(struct socket *sock, struct msghdr *msg,
 		break;
 	}
 
+	memset(&scm, 0, sizeof(scm));
+	scm.creds = bt_cb(skb)->creds;
+
 	skb_free_datagram(sk, skb);
 
 	if (flags & MSG_TRUNC)
 		copied = skblen;
 
+	scm_recv(sock, msg, &scm, flags);
+
 	return err ? : copied;
 }
 
@@ -2143,18 +2206,12 @@ static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
 
 	sock->ops = &hci_sock_ops;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto, kern);
+	sk = bt_sock_alloc(net, sock, &hci_sk_proto, protocol, GFP_ATOMIC,
+			   kern);
 	if (!sk)
 		return -ENOMEM;
 
-	sock_init_data(sock, sk);
-
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = protocol;
-
 	sock->state = SS_UNCONNECTED;
-	sk->sk_state = BT_OPEN;
 	sk->sk_destruct = hci_sock_destruct;
 
 	bt_sock_link(&hci_sk_list, sk);

net/bluetooth/hidp/sock.c

@@ -256,21 +256,13 @@ static int hidp_sock_create(struct net *net, struct socket *sock, int protocol,
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto, kern);
+	sk = bt_sock_alloc(net, sock, &hidp_proto, protocol, GFP_ATOMIC, kern);
 	if (!sk)
 		return -ENOMEM;
 
-	sock_init_data(sock, sk);
-
 	sock->ops = &hidp_sock_ops;
-
 	sock->state = SS_UNCONNECTED;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = protocol;
-	sk->sk_state	= BT_OPEN;
-
 	bt_sock_link(&hidp_sk_list, sk);
 
 	return 0;

net/bluetooth/iso.c

@@ -48,6 +48,11 @@ static void iso_sock_kill(struct sock *sk);
 #define EIR_SERVICE_DATA_LENGTH 4
 #define BASE_MAX_LENGTH (HCI_MAX_PER_AD_LENGTH - EIR_SERVICE_DATA_LENGTH)
 
+/* iso_pinfo flags values */
+enum {
+	BT_SK_BIG_SYNC,
+};
+
 struct iso_pinfo {
 	struct bt_sock		bt;
 	bdaddr_t		src;
@@ -58,7 +63,7 @@ struct iso_pinfo {
 	__u8			bc_num_bis;
 	__u8			bc_bis[ISO_MAX_NUM_BIS];
 	__u16			sync_handle;
-	__u32			flags;
+	unsigned long		flags;
 	struct bt_iso_qos	qos;
 	bool			qos_user_set;
 	__u8			base_len;
@@ -287,6 +292,16 @@ static int iso_connect_bis(struct sock *sk)
 		goto unlock;
 	}
 
+	/* Just bind if DEFER_SETUP has been set */
+	if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
+		hcon = hci_bind_bis(hdev, &iso_pi(sk)->dst,
+				    &iso_pi(sk)->qos, iso_pi(sk)->base_len,
+				    iso_pi(sk)->base);
+		if (IS_ERR(hcon)) {
+			err = PTR_ERR(hcon);
+			goto unlock;
+		}
+	} else {
 		hcon = hci_connect_bis(hdev, &iso_pi(sk)->dst,
 				       le_addr_type(iso_pi(sk)->dst_type),
 				       &iso_pi(sk)->qos, iso_pi(sk)->base_len,
@@ -295,6 +310,7 @@ static int iso_connect_bis(struct sock *sk)
 			err = PTR_ERR(hcon);
 			goto unlock;
 		}
+	}
 
 	conn = iso_conn_add(hcon);
 	if (!conn) {
@@ -317,6 +333,9 @@ static int iso_connect_bis(struct sock *sk)
 	if (hcon->state == BT_CONNECTED) {
 		iso_sock_clear_timer(sk);
 		sk->sk_state = BT_CONNECTED;
+	} else if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
+		iso_sock_clear_timer(sk);
+		sk->sk_state = BT_CONNECT;
 	} else {
 		sk->sk_state = BT_CONNECT;
 		iso_sock_set_timer(sk, sk->sk_sndtimeo);
@@ -600,18 +619,6 @@ static void iso_sock_kill(struct sock *sk)
 	sock_put(sk);
 }
 
-static void iso_conn_defer_reject(struct hci_conn *conn)
-{
-	struct hci_cp_le_reject_cis cp;
-
-	BT_DBG("conn %p", conn);
-
-	memset(&cp, 0, sizeof(cp));
-	cp.handle = cpu_to_le16(conn->handle);
-	cp.reason = HCI_ERROR_REJ_BAD_ADDR;
-	hci_send_cmd(conn->hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
-}
-
 static void __iso_sock_close(struct sock *sk)
 {
 	BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
@@ -621,6 +628,7 @@ static void __iso_sock_close(struct sock *sk)
 		iso_sock_cleanup_listen(sk);
 		break;
 
+	case BT_CONNECT:
 	case BT_CONNECTED:
 	case BT_CONFIG:
 		if (iso_pi(sk)->conn->hcon) {
@@ -636,21 +644,6 @@ static void __iso_sock_close(struct sock *sk)
 		break;
 
 	case BT_CONNECT2:
-		if (iso_pi(sk)->conn->hcon)
-			iso_conn_defer_reject(iso_pi(sk)->conn->hcon);
-		iso_chan_del(sk, ECONNRESET);
-		break;
-	case BT_CONNECT:
-		/* In case of DEFER_SETUP the hcon would be bound to CIG which
-		 * needs to be removed so just call hci_conn_del so the cleanup
-		 * callback do what is needed.
-		 */
-		if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags) &&
-		    iso_pi(sk)->conn->hcon) {
-			hci_conn_del(iso_pi(sk)->conn->hcon);
-			iso_pi(sk)->conn->hcon = NULL;
-		}
-
 		iso_chan_del(sk, ECONNRESET);
 		break;
 	case BT_DISCONN:
@@ -724,21 +717,13 @@ static struct sock *iso_sock_alloc(struct net *net, struct socket *sock,
 {
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &iso_proto, kern);
+	sk = bt_sock_alloc(net, sock, &iso_proto, proto, prio, kern);
 	if (!sk)
 		return NULL;
 
-	sock_init_data(sock, sk);
-	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
-
 	sk->sk_destruct = iso_sock_destruct;
 	sk->sk_sndtimeo = ISO_CONN_TIMEOUT;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = proto;
-	sk->sk_state    = BT_OPEN;
-
 	/* Set address type as public as default src address is BDADDR_ANY */
 	iso_pi(sk)->src_type = BDADDR_LE_PUBLIC;
 
@@ -1202,6 +1187,12 @@ static bool check_io_qos(struct bt_iso_io_qos *qos)
 
 static bool check_ucast_qos(struct bt_iso_qos *qos)
 {
+	if (qos->ucast.cig > 0xef && qos->ucast.cig != BT_ISO_QOS_CIG_UNSET)
+		return false;
+
+	if (qos->ucast.cis > 0xef && qos->ucast.cis != BT_ISO_QOS_CIS_UNSET)
+		return false;
+
 	if (qos->ucast.sca > 0x07)
 		return false;
 
@@ -1291,6 +1282,18 @@ static int iso_sock_setsockopt(struct socket *sock, int level, int optname,
 			clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
 		break;
 
+	case BT_PKT_STATUS:
+		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt)
+			set_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
+		else
+			clear_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
+		break;
+
 	case BT_ISO_QOS:
 		if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND &&
 		    sk->sk_state != BT_CONNECT2) {
@@ -1376,6 +1379,12 @@ static int iso_sock_getsockopt(struct socket *sock, int level, int optname,
 
 		break;
 
+	case BT_PKT_STATUS:
+		if (put_user(test_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags),
+			     (int __user *)optval))
+			err = -EFAULT;
+		break;
+
 	case BT_ISO_QOS:
 		qos = iso_sock_get_qos(sk);
 
@@ -1563,6 +1572,12 @@ static void iso_conn_ready(struct iso_conn *conn)
 		hci_conn_hold(hcon);
 		iso_chan_add(conn, sk, parent);
 
+		if (ev && ((struct hci_evt_le_big_sync_estabilished *)ev)->status) {
+			/* Trigger error signal on child socket */
+			sk->sk_err = ECONNREFUSED;
+			sk->sk_error_report(sk);
+		}
+
 		if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags))
 			sk->sk_state = BT_CONNECT2;
 		else
@@ -1631,6 +1646,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 			if (ev2->num_bis < iso_pi(sk)->bc_num_bis)
 				iso_pi(sk)->bc_num_bis = ev2->num_bis;
 
+			if (!test_and_set_bit(BT_SK_BIG_SYNC, &iso_pi(sk)->flags)) {
 				err = hci_le_big_create_sync(hdev,
 							     &iso_pi(sk)->qos,
 							     iso_pi(sk)->sync_handle,
@@ -1642,6 +1658,7 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 					sk = NULL;
 				}
 			}
+		}
 	} else {
 		sk = iso_get_sock_listen(&hdev->bdaddr, BDADDR_ANY, NULL, NULL);
 	}
@@ -1676,13 +1693,18 @@ static void iso_connect_cfm(struct hci_conn *hcon, __u8 status)
 		}
 
 		/* Create CIS if pending */
-		hci_le_create_cis(hcon);
+		hci_le_create_cis_pending(hcon->hdev);
 		return;
 	}
 
 	BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status);
 
-	if (!status) {
+	/* Similar to the success case, if HCI_CONN_BIG_SYNC_FAILED is set,
+	 * queue the failed bis connection into the accept queue of the
+	 * listening socket and wake up userspace, to inform the user about
+	 * the BIG sync failed event.
+	 */
+	if (!status || test_bit(HCI_CONN_BIG_SYNC_FAILED, &hcon->flags)) {
 		struct iso_conn *conn;
 
 		conn = iso_conn_add(hcon);
@@ -1757,6 +1779,7 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 
 		if (len == skb->len) {
 			/* Complete frame received */
+			hci_skb_pkt_status(skb) = flags & 0x03;
 			iso_recv_frame(conn, skb);
 			return;
 		}
@@ -1778,6 +1801,7 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 		if (!conn->rx_skb)
 			goto drop;
 
+		hci_skb_pkt_status(conn->rx_skb) = flags & 0x03;
 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
 					  skb->len);
 		conn->rx_len = len - skb->len;

net/bluetooth/l2cap_sock.c

@@ -178,21 +178,6 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	return err;
 }
 
-static void l2cap_sock_init_pid(struct sock *sk)
-{
-	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
-
-	/* Only L2CAP_MODE_EXT_FLOWCTL ever need to access the PID in order to
-	 * group the channels being requested.
-	 */
-	if (chan->mode != L2CAP_MODE_EXT_FLOWCTL)
-		return;
-
-	spin_lock(&sk->sk_peer_lock);
-	sk->sk_peer_pid = get_pid(task_tgid(current));
-	spin_unlock(&sk->sk_peer_lock);
-}
-
 static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 			      int alen, int flags)
 {
@@ -268,8 +253,6 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	    chan->mode != L2CAP_MODE_EXT_FLOWCTL)
 		chan->mode = L2CAP_MODE_LE_FLOWCTL;
 
-	l2cap_sock_init_pid(sk);
-
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
@@ -325,8 +308,6 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
 		goto done;
 	}
 
-	l2cap_sock_init_pid(sk);
-
 	sk->sk_max_ack_backlog = backlog;
 	sk->sk_ack_backlog = 0;
 
@@ -1858,21 +1839,13 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
 	struct sock *sk;
 	struct l2cap_chan *chan;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto, kern);
+	sk = bt_sock_alloc(net, sock, &l2cap_proto, proto, prio, kern);
 	if (!sk)
 		return NULL;
 
-	sock_init_data(sock, sk);
-	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
-
 	sk->sk_destruct = l2cap_sock_destruct;
 	sk->sk_sndtimeo = L2CAP_CONN_TIMEOUT;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = proto;
-	sk->sk_state = BT_OPEN;
-
 	chan = l2cap_chan_create();
 	if (!chan) {
 		sk_free(sk);

net/bluetooth/mgmt.c

@@ -944,6 +944,12 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (cis_peripheral_capable(hdev))
 		settings |= MGMT_SETTING_CIS_PERIPHERAL;
 
+	if (bis_capable(hdev))
+		settings |= MGMT_SETTING_ISO_BROADCASTER;
+
+	if (sync_recv_capable(hdev))
+		settings |= MGMT_SETTING_ISO_SYNC_RECEIVER;
+
 	return settings;
 }
 
@@ -3580,18 +3586,6 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 	return err;
 }
 
-static int abort_conn_sync(struct hci_dev *hdev, void *data)
-{
-	struct hci_conn *conn;
-	u16 handle = PTR_ERR(data);
-
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
-	if (!conn)
-		return 0;
-
-	return hci_abort_conn_sync(hdev, conn, HCI_ERROR_REMOTE_USER_TERM);
-}
-
 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 			      u16 len)
 {
@@ -3642,8 +3636,7 @@ static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
 					      le_addr_type(addr->type));
 
 	if (conn->conn_reason == CONN_REASON_PAIR_DEVICE)
-		hci_cmd_sync_queue(hdev, abort_conn_sync, ERR_PTR(conn->handle),
-				   NULL);
+		hci_abort_conn(conn, HCI_ERROR_REMOTE_USER_TERM);
 
 unlock:
 	hci_dev_unlock(hdev);
@@ -8435,8 +8428,8 @@ static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
 	supported_flags = get_supported_adv_flags(hdev);
 
 	rp->supported_flags = cpu_to_le32(supported_flags);
-	rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
-	rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
+	rp->max_adv_data_len = max_adv_len(hdev);
+	rp->max_scan_rsp_len = max_adv_len(hdev);
 	rp->max_instances = hdev->le_num_of_adv_sets;
 	rp->num_instances = hdev->adv_instance_cnt;
 
@@ -8472,7 +8465,7 @@ static u8 calculate_name_len(struct hci_dev *hdev)
 static u8 tlv_data_max_len(struct hci_dev *hdev, u32 adv_flags,
 			   bool is_adv_data)
 {
-	u8 max_len = HCI_MAX_AD_LENGTH;
+	u8 max_len = max_adv_len(hdev);
 
 	if (is_adv_data) {
 		if (adv_flags & (MGMT_ADV_FLAG_DISCOV |

net/bluetooth/rfcomm/sock.c

@@ -268,18 +268,16 @@ static struct proto rfcomm_proto = {
 	.obj_size	= sizeof(struct rfcomm_pinfo)
 };
 
-static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio, int kern)
+static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock,
+				      int proto, gfp_t prio, int kern)
 {
 	struct rfcomm_dlc *d;
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto, kern);
+	sk = bt_sock_alloc(net, sock, &rfcomm_proto, proto, prio, kern);
 	if (!sk)
 		return NULL;
 
-	sock_init_data(sock, sk);
-	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
-
 	d = rfcomm_dlc_alloc(prio);
 	if (!d) {
 		sk_free(sk);
@@ -298,11 +296,6 @@ static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int
 	sk->sk_sndbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
 	sk->sk_rcvbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = proto;
-	sk->sk_state    = BT_OPEN;
-
 	bt_sock_link(&rfcomm_sk_list, sk);
 
 	BT_DBG("sk %p", sk);

net/bluetooth/sco.c

@@ -68,7 +68,6 @@ struct sco_pinfo {
 	bdaddr_t	dst;
 	__u32		flags;
 	__u16		setting;
-	__u8		cmsg_mask;
 	struct bt_codec codec;
 	struct sco_conn	*conn;
 };
@@ -471,15 +470,6 @@ static void sco_sock_close(struct sock *sk)
 	release_sock(sk);
 }
 
-static void sco_skb_put_cmsg(struct sk_buff *skb, struct msghdr *msg,
-			     struct sock *sk)
-{
-	if (sco_pi(sk)->cmsg_mask & SCO_CMSG_PKT_STATUS)
-		put_cmsg(msg, SOL_BLUETOOTH, BT_SCM_PKT_STATUS,
-			 sizeof(bt_cb(skb)->sco.pkt_status),
-			 &bt_cb(skb)->sco.pkt_status);
-}
-
 static void sco_sock_init(struct sock *sk, struct sock *parent)
 {
 	BT_DBG("sk %p", sk);
@@ -488,8 +478,6 @@ static void sco_sock_init(struct sock *sk, struct sock *parent)
 		sk->sk_type = parent->sk_type;
 		bt_sk(sk)->flags = bt_sk(parent)->flags;
 		security_sk_clone(parent, sk);
-	} else {
-		bt_sk(sk)->skb_put_cmsg = sco_skb_put_cmsg;
 	}
 }
 
@@ -504,21 +492,13 @@ static struct sock *sco_sock_alloc(struct net *net, struct socket *sock,
 {
 	struct sock *sk;
 
-	sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto, kern);
+	sk = bt_sock_alloc(net, sock, &sco_proto, proto, prio, kern);
 	if (!sk)
 		return NULL;
 
-	sock_init_data(sock, sk);
-	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
-
 	sk->sk_destruct = sco_sock_destruct;
 	sk->sk_sndtimeo = SCO_CONN_TIMEOUT;
 
-	sock_reset_flag(sk, SOCK_ZAPPED);
-
-	sk->sk_protocol = proto;
-	sk->sk_state    = BT_OPEN;
-
 	sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
 	sco_pi(sk)->codec.id = BT_CODEC_CVSD;
 	sco_pi(sk)->codec.cid = 0xffff;
@@ -915,9 +895,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 
 		if (opt)
-			sco_pi(sk)->cmsg_mask |= SCO_CMSG_PKT_STATUS;
+			set_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
 		else
-			sco_pi(sk)->cmsg_mask &= SCO_CMSG_PKT_STATUS;
+			clear_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags);
 		break;
 
 	case BT_CODEC:
@@ -1048,7 +1028,6 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname,
 	int len, err = 0;
 	struct bt_voice voice;
 	u32 phys;
-	int pkt_status;
 	int buf_len;
 	struct codec_list *c;
 	u8 num_codecs, i, __user *ptr;
@@ -1102,9 +1081,8 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_PKT_STATUS:
-		pkt_status = (sco_pi(sk)->cmsg_mask & SCO_CMSG_PKT_STATUS);
-
-		if (put_user(pkt_status, (int __user *)optval))
+		if (put_user(test_bit(BT_SK_PKT_STATUS, &bt_sk(sk)->flags),
+			     (int __user *)optval))
 			err = -EFAULT;
 		break;