To enable platform specific experimental features, introduce this new set of
management commands and events.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 1 +
include/net/bluetooth/mgmt.h | 27 +++++++++++++++++
net/bluetooth/mgmt.c | 58 ++++++++++++++++++++++++++++++++++++
3 files changed, 86 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index e5bc1dfe809a..16ab6ce87883 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -258,6 +258,7 @@ enum {
HCI_MGMT_DEV_CLASS_EVENTS,
HCI_MGMT_LOCAL_NAME_EVENTS,
HCI_MGMT_OOB_DATA_EVENTS,
+ HCI_MGMT_EXP_FEATURE_EVENTS,
};
/*
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 9d4d87c6028e..16e0d87bd8fa 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -681,6 +681,27 @@ struct mgmt_rp_read_security_info {
__u8 sec[];
} __packed;
+#define MGMT_OP_READ_EXP_FEATURES_INFO 0x0049
+#define MGMT_READ_EXP_FEATURES_INFO_SIZE 0
+struct mgmt_rp_read_exp_features_info {
+ __le16 feature_count;
+ struct {
+ __u8 uuid[16];
+ __le32 flags;
+ } features[];
+} __packed;
+
+#define MGMT_OP_SET_EXP_FEATURE 0x004a
+struct mgmt_cp_set_exp_feature {
+ __u8 uuid[16];
+ __u8 param[];
+} __packed;
+#define MGMT_SET_EXP_FEATURE_SIZE 16
+struct mgmt_rp_set_exp_feature {
+ __u8 uuid[16];
+ __le32 flags;
+} __packed;
+
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
@@ -906,3 +927,9 @@ struct mgmt_ev_ext_info_changed {
struct mgmt_ev_phy_configuration_changed {
__le32 selected_phys;
} __packed;
+
+#define MGMT_EV_EXP_FEATURE_CHANGED 0x0027
+struct mgmt_ev_exp_feature_changed {
+ __u8 uuid[16];
+ __le32 flags;
+} __packed;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 78cf72b64014..3c6be70d98ef 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -109,6 +109,8 @@ static const u16 mgmt_commands[] = {
MGMT_OP_SET_BLOCKED_KEYS,
MGMT_OP_SET_WIDEBAND_SPEECH,
MGMT_OP_READ_SECURITY_INFO,
+ MGMT_OP_READ_EXP_FEATURES_INFO,
+ MGMT_OP_SET_EXP_FEATURE,
};
static const u16 mgmt_events[] = {
@@ -148,6 +150,7 @@ static const u16 mgmt_events[] = {
MGMT_EV_ADVERTISING_REMOVED,
MGMT_EV_EXT_INFO_CHANGED,
MGMT_EV_PHY_CONFIGURATION_CHANGED,
+ MGMT_EV_EXP_FEATURE_CHANGED,
};
static const u16 mgmt_untrusted_commands[] = {
@@ -158,6 +161,7 @@ static const u16 mgmt_untrusted_commands[] = {
MGMT_OP_READ_EXT_INDEX_LIST,
MGMT_OP_READ_EXT_INFO,
MGMT_OP_READ_SECURITY_INFO,
+ MGMT_OP_READ_EXP_FEATURES_INFO,
};
static const u16 mgmt_untrusted_events[] = {
@@ -172,6 +176,7 @@ static const u16 mgmt_untrusted_events[] = {
MGMT_EV_EXT_INDEX_ADDED,
MGMT_EV_EXT_INDEX_REMOVED,
MGMT_EV_EXT_INFO_CHANGED,
+ MGMT_EV_EXP_FEATURE_CHANGED,
};
#define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
@@ -3710,6 +3715,53 @@ static int read_security_info(struct sock *sk, struct hci_dev *hdev,
rp, sizeof(*rp) + sec_len);
}
+static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev,
+ void *data, u16 data_len)
+{
+ char buf[42];
+ struct mgmt_rp_read_exp_features_info *rp = (void *)buf;
+ u16 idx = 0;
+
+ bt_dev_dbg(hdev, "sock %p", sk);
+
+ memset(&buf, 0, sizeof(buf));
+
+ rp->feature_count = cpu_to_le16(idx);
+
+ /* After reading the experimental features information, enable
+ * the events to update client on any future change.
+ */
+ hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
+
+ return mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
+ MGMT_OP_READ_EXP_FEATURES_INFO,
+ 0, rp, sizeof(*rp) + (20 * idx));
+}
+
+static int set_exp_feature(struct sock *sk, struct hci_dev *hdev,
+ void *data, u16 data_len)
+{
+ struct mgmt_cp_set_exp_feature *cp = data;
+ struct mgmt_rp_set_exp_feature rp;
+
+ bt_dev_dbg(hdev, "sock %p", sk);
+
+ if (!memcmp(cp->uuid, ZERO_KEY, 16)) {
+ memset(rp.uuid, 0, 16);
+ rp.flags = cpu_to_le32(0);
+
+ hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
+
+ return mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
+ MGMT_OP_SET_EXP_FEATURE, 0,
+ &rp, sizeof(rp));
+ }
+
+ return mgmt_cmd_status(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
+ MGMT_OP_SET_EXP_FEATURE,
+ MGMT_STATUS_NOT_SUPPORTED);
+}
+
static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
u16 opcode, struct sk_buff *skb)
{
@@ -7152,6 +7204,12 @@ static const struct hci_mgmt_handler mgmt_handlers[] = {
{ set_wideband_speech, MGMT_SETTING_SIZE },
{ read_security_info, MGMT_READ_SECURITY_INFO_SIZE,
HCI_MGMT_UNTRUSTED },
+ { read_exp_features_info, MGMT_READ_EXP_FEATURES_INFO_SIZE,
+ HCI_MGMT_UNTRUSTED |
+ HCI_MGMT_HDEV_OPTIONAL },
+ { set_exp_feature, MGMT_SET_EXP_FEATURE_SIZE,
+ HCI_MGMT_VAR_LEN |
+ HCI_MGMT_HDEV_OPTIONAL },
};
void mgmt_index_added(struct hci_dev *hdev)
--
2.26.2
