Bluetooth: Update mgmt_read_info and related mgmt messages

This patch updates the mgmt_read_info and related messages to the latest
management API which uses a bitfield of settings instead of individual
boolean values.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

include/net/bluetooth/hci.h

@@ -210,6 +210,7 @@ enum {
 
 #define LMP_EV4		0x01
 #define LMP_EV5		0x02
+#define LMP_NO_BREDR	0x20
 #define LMP_LE		0x40
 
 #define LMP_SNIFF_SUBR	0x02

include/net/bluetooth/mgmt.h

@@ -61,22 +61,29 @@ struct mgmt_rp_read_index_list {
 /* Reserve one extra byte for names in management messages so that they
  * are always guaranteed to be nul-terminated */
 #define MGMT_MAX_NAME_LENGTH		(HCI_MAX_NAME_LENGTH + 1)
+#define MGMT_MAX_SHORT_NAME_LENGTH	(10 + 1)
+
+#define MGMT_SETTING_POWERED		0x00000001
+#define MGMT_SETTING_CONNECTABLE	0x00000002
+#define MGMT_SETTING_FAST_CONNECTABLE	0x00000004
+#define MGMT_SETTING_DISCOVERABLE	0x00000008
+#define MGMT_SETTING_PAIRABLE		0x00000010
+#define MGMT_SETTING_LINK_SECURITY	0x00000020
+#define MGMT_SETTING_SSP		0x00000040
+#define MGMT_SETTING_BREDR		0x00000080
+#define MGMT_SETTING_HS			0x00000100
+#define MGMT_SETTING_LE			0x00000200
 
 #define MGMT_OP_READ_INFO		0x0004
 struct mgmt_rp_read_info {
-	__u8 type;
-	__u8 powered;
-	__u8 connectable;
-	__u8 discoverable;
-	__u8 pairable;
-	__u8 sec_mode;
 	bdaddr_t bdaddr;
+	__u8 version;
+	__le16 manufacturer;
+	__le32 supported_settings;
+	__le32 current_settings;
 	__u8 dev_class[3];
-	__u8 features[8];
-	__u16 manufacturer;
-	__u8 hci_ver;
-	__u16 hci_rev;
 	__u8 name[MGMT_MAX_NAME_LENGTH];
+	__u8 short_name[MGMT_MAX_SHORT_NAME_LENGTH];
 } __packed;
 
 struct mgmt_mode {
@@ -285,7 +292,7 @@ struct mgmt_ev_controller_error {
 
 #define MGMT_EV_INDEX_REMOVED		0x0005
 
-#define MGMT_EV_POWERED			0x0006
+#define MGMT_EV_NEW_SETTINGS		0x0006
 
 #define MGMT_EV_DISCOVERABLE		0x0007
 

net/bluetooth/mgmt.c

@@ -242,6 +242,63 @@ static int read_index_list(struct sock *sk)
 	return err;
 }
 
+static u32 get_supported_settings(struct hci_dev *hdev)
+{
+	u32 settings = 0;
+
+	settings |= MGMT_SETTING_POWERED;
+	settings |= MGMT_SETTING_CONNECTABLE;
+	settings |= MGMT_SETTING_FAST_CONNECTABLE;
+	settings |= MGMT_SETTING_DISCOVERABLE;
+	settings |= MGMT_SETTING_PAIRABLE;
+
+	if (hdev->features[6] & LMP_SIMPLE_PAIR)
+		settings |= MGMT_SETTING_SSP;
+
+	if (!(hdev->features[4] & LMP_NO_BREDR)) {
+		settings |= MGMT_SETTING_BREDR;
+		settings |= MGMT_SETTING_LINK_SECURITY;
+	}
+
+	if (hdev->features[4] & LMP_LE)
+		settings |= MGMT_SETTING_LE;
+
+	return settings;
+}
+
+static u32 get_current_settings(struct hci_dev *hdev)
+{
+	u32 settings = 0;
+
+	if (test_bit(HCI_UP, &hdev->flags))
+		settings |= MGMT_SETTING_POWERED;
+	else
+		return settings;
+
+	if (test_bit(HCI_PSCAN, &hdev->flags))
+		settings |= MGMT_SETTING_CONNECTABLE;
+
+	if (test_bit(HCI_ISCAN, &hdev->flags))
+		settings |= MGMT_SETTING_DISCOVERABLE;
+
+	if (test_bit(HCI_PAIRABLE, &hdev->flags))
+		settings |= MGMT_SETTING_PAIRABLE;
+
+	if (!(hdev->features[4] & LMP_NO_BREDR))
+		settings |= MGMT_SETTING_BREDR;
+
+	if (hdev->extfeatures[0] & LMP_HOST_LE)
+		settings |= MGMT_SETTING_LE;
+
+	if (test_bit(HCI_AUTH, &hdev->flags))
+		settings |= MGMT_SETTING_LINK_SECURITY;
+
+	if (hdev->ssp_mode > 0)
+		settings |= MGMT_SETTING_SSP;
+
+	return settings;
+}
+
 static int read_controller_info(struct sock *sk, u16 index)
 {
 	struct mgmt_rp_read_info rp;
@@ -263,26 +320,16 @@ static int read_controller_info(struct sock *sk, u16 index)
 
 	memset(&rp, 0, sizeof(rp));
 
-	rp.type = hdev->dev_type;
-
-	rp.powered = test_bit(HCI_UP, &hdev->flags);
-	rp.connectable = test_bit(HCI_PSCAN, &hdev->flags);
-	rp.discoverable = test_bit(HCI_ISCAN, &hdev->flags);
-	rp.pairable = test_bit(HCI_PSCAN, &hdev->flags);
-
-	if (test_bit(HCI_AUTH, &hdev->flags))
-		rp.sec_mode = 3;
-	else if (hdev->ssp_mode > 0)
-		rp.sec_mode = 4;
-	else
-		rp.sec_mode = 2;
-
 	bacpy(&rp.bdaddr, &hdev->bdaddr);
-	memcpy(rp.features, hdev->features, 8);
+
-	memcpy(rp.dev_class, hdev->dev_class, 3);
+	rp.version = hdev->hci_ver;
+
 	put_unaligned_le16(hdev->manufacturer, &rp.manufacturer);
-	rp.hci_ver = hdev->hci_ver;
+
-	put_unaligned_le16(hdev->hci_rev, &rp.hci_rev);
+	rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
+	rp.current_settings = cpu_to_le32(get_current_settings(hdev));
+
+	memcpy(rp.dev_class, hdev->dev_class, 3);
 
 	memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
 
@@ -365,13 +412,11 @@ static void mgmt_pending_remove(struct pending_cmd *cmd)
 	mgmt_pending_free(cmd);
 }
 
-static int send_mode_rsp(struct sock *sk, u16 opcode, u16 index, u8 val)
+static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
 {
-	struct mgmt_mode rp;
+	__le32 settings = cpu_to_le32(get_current_settings(hdev));
 
-	rp.val = val;
+	return cmd_complete(sk, hdev->id, opcode, &settings, sizeof(settings));
-
-	return cmd_complete(sk, index, opcode, &rp, sizeof(rp));
 }
 
 static int set_powered(struct sock *sk, u16 index, unsigned char *data, u16 len)
@@ -398,7 +443,7 @@ static int set_powered(struct sock *sk, u16 index, unsigned char *data, u16 len)
 
 	up = test_bit(HCI_UP, &hdev->flags);
 	if ((cp->val && up) || (!cp->val && !up)) {
-		err = send_mode_rsp(sk, index, MGMT_OP_SET_POWERED, cp->val);
+		err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
 		goto failed;
 	}
 
@@ -466,8 +511,7 @@ static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
 
 	if (cp->val == test_bit(HCI_ISCAN, &hdev->flags) &&
 					test_bit(HCI_PSCAN, &hdev->flags)) {
-		err = send_mode_rsp(sk, index, MGMT_OP_SET_DISCOVERABLE,
+		err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
-								cp->val);
 		goto failed;
 	}
 
@@ -536,8 +580,7 @@ static int set_connectable(struct sock *sk, u16 index, unsigned char *data,
 	}
 
 	if (cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
-		err = send_mode_rsp(sk, index, MGMT_OP_SET_CONNECTABLE,
+		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
-								cp->val);
 		goto failed;
 	}
 
@@ -595,8 +638,9 @@ static int mgmt_event(u16 event, struct hci_dev *hdev, void *data,
 static int set_pairable(struct sock *sk, u16 index, unsigned char *data,
 									u16 len)
 {
-	struct mgmt_mode *cp, ev;
+	struct mgmt_mode *cp;
 	struct hci_dev *hdev;
+	__le32 ev;
 	int err;
 
 	cp = (void *) data;
@@ -619,13 +663,13 @@ static int set_pairable(struct sock *sk, u16 index, unsigned char *data,
 	else
 		clear_bit(HCI_PAIRABLE, &hdev->flags);
 
-	err = send_mode_rsp(sk, MGMT_OP_SET_PAIRABLE, index, cp->val);
+	err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
 	if (err < 0)
 		goto failed;
 
-	ev.val = cp->val;
+	ev = cpu_to_le32(get_current_settings(hdev));
 
-	err = mgmt_event(MGMT_EV_PAIRABLE, hdev, &ev, sizeof(ev), sk);
+	err = mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), sk);
 
 failed:
 	hci_dev_unlock(hdev);
@@ -2234,17 +2278,14 @@ int mgmt_index_removed(struct hci_dev *hdev)
 struct cmd_lookup {
 	u8 val;
 	struct sock *sk;
+	struct hci_dev *hdev;
 };
 
-static void mode_rsp(struct pending_cmd *cmd, void *data)
+static void settings_rsp(struct pending_cmd *cmd, void *data)
 {
-	struct mgmt_mode *cp = cmd->param;
 	struct cmd_lookup *match = data;
 
-	if (cp->val != match->val)
+	send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
-		return;
-
-	send_mode_rsp(cmd->sk, cmd->opcode, cmd->index, cp->val);
 
 	list_del(&cmd->list);
 
@@ -2258,20 +2299,21 @@ static void mode_rsp(struct pending_cmd *cmd, void *data)
 
 int mgmt_powered(struct hci_dev *hdev, u8 powered)
 {
-	struct mgmt_mode ev;
+	struct cmd_lookup match = { powered, NULL, hdev };
-	struct cmd_lookup match = { powered, NULL };
+	__le32 ev;
 	int ret;
 
-	mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, mode_rsp, &match);
+	mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
 
 	if (!powered) {
 		u8 status = ENETDOWN;
 		mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
 	}
 
-	ev.val = powered;
+	ev = cpu_to_le32(get_current_settings(hdev));
 
-	ret = mgmt_event(MGMT_EV_POWERED, hdev, &ev, sizeof(ev), match.sk);
+	ret = mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev),
+								match.sk);
 
 	if (match.sk)
 		sock_put(match.sk);
@@ -2281,17 +2323,16 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
 
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
-	struct mgmt_mode ev;
+	struct cmd_lookup match = { discoverable, NULL, hdev };
-	struct cmd_lookup match = { discoverable, NULL };
+	__le32 ev;
 	int ret;
 
-	mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, mode_rsp, &match);
+	mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp, &match);
 
-	ev.val = discoverable;
+	ev = cpu_to_le32(get_current_settings(hdev));
 
-	ret = mgmt_event(MGMT_EV_DISCOVERABLE, hdev, &ev, sizeof(ev),
+	ret = mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev),
 								match.sk);
-
 	if (match.sk)
 		sock_put(match.sk);
 
@@ -2300,15 +2341,16 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 {
-	struct mgmt_mode ev;
+	__le32 ev;
-	struct cmd_lookup match = { connectable, NULL };
+	struct cmd_lookup match = { connectable, NULL, hdev };
 	int ret;
 
-	mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, mode_rsp, &match);
+	mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, settings_rsp,
+								&match);
 
-	ev.val = connectable;
+	ev = cpu_to_le32(get_current_settings(hdev));
 
-	ret = mgmt_event(MGMT_EV_CONNECTABLE, hdev, &ev, sizeof(ev), match.sk);
+	ret = mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), match.sk);
 
 	if (match.sk)
 		sock_put(match.sk);