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Bluetooth: Add support for experimental features configuration
To enable platform specific experimental features, introduce this new set of management commands and events. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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568602457c
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3 changed files with 86 additions and 0 deletions
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@ -258,6 +258,7 @@ enum {
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HCI_MGMT_DEV_CLASS_EVENTS,
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HCI_MGMT_LOCAL_NAME_EVENTS,
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HCI_MGMT_OOB_DATA_EVENTS,
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HCI_MGMT_EXP_FEATURE_EVENTS,
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};
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/*
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@ -681,6 +681,27 @@ struct mgmt_rp_read_security_info {
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__u8 sec[];
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} __packed;
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#define MGMT_OP_READ_EXP_FEATURES_INFO 0x0049
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#define MGMT_READ_EXP_FEATURES_INFO_SIZE 0
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struct mgmt_rp_read_exp_features_info {
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__le16 feature_count;
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struct {
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__u8 uuid[16];
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__le32 flags;
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} features[];
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} __packed;
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#define MGMT_OP_SET_EXP_FEATURE 0x004a
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struct mgmt_cp_set_exp_feature {
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__u8 uuid[16];
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__u8 param[];
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} __packed;
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#define MGMT_SET_EXP_FEATURE_SIZE 16
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struct mgmt_rp_set_exp_feature {
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__u8 uuid[16];
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__le32 flags;
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} __packed;
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#define MGMT_EV_CMD_COMPLETE 0x0001
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struct mgmt_ev_cmd_complete {
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__le16 opcode;
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@ -906,3 +927,9 @@ struct mgmt_ev_ext_info_changed {
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struct mgmt_ev_phy_configuration_changed {
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__le32 selected_phys;
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} __packed;
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#define MGMT_EV_EXP_FEATURE_CHANGED 0x0027
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struct mgmt_ev_exp_feature_changed {
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__u8 uuid[16];
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__le32 flags;
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} __packed;
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@ -109,6 +109,8 @@ static const u16 mgmt_commands[] = {
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MGMT_OP_SET_BLOCKED_KEYS,
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MGMT_OP_SET_WIDEBAND_SPEECH,
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MGMT_OP_READ_SECURITY_INFO,
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MGMT_OP_READ_EXP_FEATURES_INFO,
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MGMT_OP_SET_EXP_FEATURE,
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};
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static const u16 mgmt_events[] = {
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@ -148,6 +150,7 @@ static const u16 mgmt_events[] = {
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MGMT_EV_ADVERTISING_REMOVED,
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MGMT_EV_EXT_INFO_CHANGED,
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MGMT_EV_PHY_CONFIGURATION_CHANGED,
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MGMT_EV_EXP_FEATURE_CHANGED,
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};
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static const u16 mgmt_untrusted_commands[] = {
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@ -158,6 +161,7 @@ static const u16 mgmt_untrusted_commands[] = {
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MGMT_OP_READ_EXT_INDEX_LIST,
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MGMT_OP_READ_EXT_INFO,
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MGMT_OP_READ_SECURITY_INFO,
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MGMT_OP_READ_EXP_FEATURES_INFO,
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};
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static const u16 mgmt_untrusted_events[] = {
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@ -172,6 +176,7 @@ static const u16 mgmt_untrusted_events[] = {
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MGMT_EV_EXT_INDEX_ADDED,
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MGMT_EV_EXT_INDEX_REMOVED,
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MGMT_EV_EXT_INFO_CHANGED,
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MGMT_EV_EXP_FEATURE_CHANGED,
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};
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#define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
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@ -3710,6 +3715,53 @@ static int read_security_info(struct sock *sk, struct hci_dev *hdev,
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rp, sizeof(*rp) + sec_len);
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}
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static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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char buf[42];
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struct mgmt_rp_read_exp_features_info *rp = (void *)buf;
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u16 idx = 0;
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bt_dev_dbg(hdev, "sock %p", sk);
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memset(&buf, 0, sizeof(buf));
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rp->feature_count = cpu_to_le16(idx);
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/* After reading the experimental features information, enable
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* the events to update client on any future change.
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*/
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hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
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return mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
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MGMT_OP_READ_EXP_FEATURES_INFO,
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0, rp, sizeof(*rp) + (20 * idx));
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}
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static int set_exp_feature(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_cp_set_exp_feature *cp = data;
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struct mgmt_rp_set_exp_feature rp;
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bt_dev_dbg(hdev, "sock %p", sk);
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if (!memcmp(cp->uuid, ZERO_KEY, 16)) {
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memset(rp.uuid, 0, 16);
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rp.flags = cpu_to_le32(0);
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hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
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return mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
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MGMT_OP_SET_EXP_FEATURE, 0,
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&rp, sizeof(rp));
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}
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return mgmt_cmd_status(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
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MGMT_OP_SET_EXP_FEATURE,
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MGMT_STATUS_NOT_SUPPORTED);
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}
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static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
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u16 opcode, struct sk_buff *skb)
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{
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@ -7152,6 +7204,12 @@ static const struct hci_mgmt_handler mgmt_handlers[] = {
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{ set_wideband_speech, MGMT_SETTING_SIZE },
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{ read_security_info, MGMT_READ_SECURITY_INFO_SIZE,
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HCI_MGMT_UNTRUSTED },
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{ read_exp_features_info, MGMT_READ_EXP_FEATURES_INFO_SIZE,
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HCI_MGMT_UNTRUSTED |
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HCI_MGMT_HDEV_OPTIONAL },
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{ set_exp_feature, MGMT_SET_EXP_FEATURE_SIZE,
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HCI_MGMT_VAR_LEN |
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HCI_MGMT_HDEV_OPTIONAL },
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};
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void mgmt_index_added(struct hci_dev *hdev)
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