#define MGMT_VERSION 0
#define MGMT_REVISION 1
+struct pending_cmd {
+ struct list_head list;
+ __u16 opcode;
+ int index;
+ void *cmd;
+ struct sock *sk;
+};
+
+LIST_HEAD(cmd_list);
+
static int cmd_status(struct sock *sk, u16 cmd, u8 status)
{
struct sk_buff *skb;
return 0;
}
-static int read_version(struct sock *sk)
+static int cmd_complete(struct sock *sk, u16 cmd, void *rp, size_t rp_len)
{
struct sk_buff *skb;
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
- struct mgmt_rp_read_version *rp;
BT_DBG("sock %p", sk);
- skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
+ skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + rp_len, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
hdr = (void *) skb_put(skb, sizeof(*hdr));
- hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
- hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
- ev = (void *) skb_put(skb, sizeof(*ev));
- put_unaligned_le16(MGMT_OP_READ_VERSION, &ev->opcode);
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
- rp = (void *) skb_put(skb, sizeof(*rp));
- rp->version = MGMT_VERSION;
- put_unaligned_le16(MGMT_REVISION, &rp->revision);
+ ev = (void *) skb_put(skb, sizeof(*ev) + rp_len);
+ put_unaligned_le16(cmd, &ev->opcode);
+ memcpy(ev->data, rp, rp_len);
if (sock_queue_rcv_skb(sk, skb) < 0)
kfree_skb(skb);
return 0;
}
+static int read_version(struct sock *sk)
+{
+ struct mgmt_rp_read_version rp;
+
+ BT_DBG("sock %p", sk);
+
+ rp.version = MGMT_VERSION;
+ put_unaligned_le16(MGMT_REVISION, &rp.revision);
+
+ return cmd_complete(sk, MGMT_OP_READ_VERSION, &rp, sizeof(rp));
+}
+
static int read_index_list(struct sock *sk)
{
- struct sk_buff *skb;
- struct mgmt_hdr *hdr;
- struct mgmt_ev_cmd_complete *ev;
struct mgmt_rp_read_index_list *rp;
struct list_head *p;
- size_t body_len;
+ size_t rp_len;
u16 count;
- int i;
+ int i, err;
BT_DBG("sock %p", sk);
count++;
}
- body_len = sizeof(*ev) + sizeof(*rp) + (2 * count);
- skb = alloc_skb(sizeof(*hdr) + body_len, GFP_ATOMIC);
- if (!skb)
+ rp_len = sizeof(*rp) + (2 * count);
+ rp = kmalloc(rp_len, GFP_ATOMIC);
+ if (!rp) {
+ read_unlock(&hci_dev_list_lock);
return -ENOMEM;
+ }
- hdr = (void *) skb_put(skb, sizeof(*hdr));
- hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
- hdr->len = cpu_to_le16(body_len);
-
- ev = (void *) skb_put(skb, sizeof(*ev));
- put_unaligned_le16(MGMT_OP_READ_INDEX_LIST, &ev->opcode);
-
- rp = (void *) skb_put(skb, sizeof(*rp) + (2 * count));
put_unaligned_le16(count, &rp->num_controllers);
i = 0;
list_for_each(p, &hci_dev_list) {
struct hci_dev *d = list_entry(p, struct hci_dev, list);
+
+ hci_del_off_timer(d);
+
+ set_bit(HCI_MGMT, &d->flags);
+
+ if (test_bit(HCI_SETUP, &d->flags))
+ continue;
+
put_unaligned_le16(d->id, &rp->index[i++]);
BT_DBG("Added hci%u", d->id);
}
read_unlock(&hci_dev_list_lock);
- if (sock_queue_rcv_skb(sk, skb) < 0)
- kfree_skb(skb);
+ err = cmd_complete(sk, MGMT_OP_READ_INDEX_LIST, rp, rp_len);
- return 0;
+ kfree(rp);
+
+ return err;
}
static int read_controller_info(struct sock *sk, unsigned char *data, u16 len)
{
- struct sk_buff *skb;
- struct mgmt_hdr *hdr;
- struct mgmt_ev_cmd_complete *ev;
- struct mgmt_rp_read_info *rp;
- struct mgmt_cp_read_info *cp;
+ struct mgmt_rp_read_info rp;
+ struct mgmt_cp_read_info *cp = (void *) data;
struct hci_dev *hdev;
u16 dev_id;
if (len != 2)
return cmd_status(sk, MGMT_OP_READ_INFO, EINVAL);
- skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
- if (!skb)
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_READ_INFO, ENODEV);
+
+ hci_del_off_timer(hdev);
+
+ hci_dev_lock_bh(hdev);
+
+ set_bit(HCI_MGMT, &hdev->flags);
+
+ put_unaligned_le16(hdev->id, &rp.index);
+ 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);
+ put_unaligned_le16(hdev->manufacturer, &rp.manufacturer);
+ rp.hci_ver = hdev->hci_ver;
+ put_unaligned_le16(hdev->hci_rev, &rp.hci_rev);
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return cmd_complete(sk, MGMT_OP_READ_INFO, &rp, sizeof(rp));
+}
+
+static void mgmt_pending_free(struct pending_cmd *cmd)
+{
+ sock_put(cmd->sk);
+ kfree(cmd->cmd);
+ kfree(cmd);
+}
+
+static int mgmt_pending_add(struct sock *sk, u16 opcode, int index,
+ void *data, u16 len)
+{
+ struct pending_cmd *cmd;
+
+ cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
+ if (!cmd)
return -ENOMEM;
- hdr = (void *) skb_put(skb, sizeof(*hdr));
- hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
- hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
+ cmd->opcode = opcode;
+ cmd->index = index;
- ev = (void *) skb_put(skb, sizeof(*ev));
- put_unaligned_le16(MGMT_OP_READ_INFO, &ev->opcode);
+ cmd->cmd = kmalloc(len, GFP_ATOMIC);
+ if (!cmd->cmd) {
+ kfree(cmd);
+ return -ENOMEM;
+ }
+
+ memcpy(cmd->cmd, data, len);
+
+ cmd->sk = sk;
+ sock_hold(sk);
+
+ list_add(&cmd->list, &cmd_list);
+
+ return 0;
+}
+
+static void mgmt_pending_foreach(u16 opcode, int index,
+ void (*cb)(struct pending_cmd *cmd, void *data),
+ void *data)
+{
+ struct list_head *p, *n;
+
+ list_for_each_safe(p, n, &cmd_list) {
+ struct pending_cmd *cmd;
+
+ cmd = list_entry(p, struct pending_cmd, list);
+
+ if (cmd->opcode != opcode)
+ continue;
+
+ if (index >= 0 && cmd->index != index)
+ continue;
+
+ cb(cmd, data);
+ }
+}
+
+static struct pending_cmd *mgmt_pending_find(u16 opcode, int index)
+{
+ struct list_head *p;
+
+ list_for_each(p, &cmd_list) {
+ struct pending_cmd *cmd;
+
+ cmd = list_entry(p, struct pending_cmd, list);
+
+ if (cmd->opcode != opcode)
+ continue;
+
+ if (index >= 0 && cmd->index != index)
+ continue;
+
+ return cmd;
+ }
- rp = (void *) skb_put(skb, sizeof(*rp));
+ return NULL;
+}
+
+static void mgmt_pending_remove(u16 opcode, int index)
+{
+ struct pending_cmd *cmd;
+
+ cmd = mgmt_pending_find(opcode, index);
+ if (cmd == NULL)
+ return;
+
+ list_del(&cmd->list);
+ mgmt_pending_free(cmd);
+}
+
+static int set_powered(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct mgmt_mode *cp;
+ struct hci_dev *hdev;
+ u16 dev_id;
+ int ret, up;
cp = (void *) data;
dev_id = get_unaligned_le16(&cp->index);
BT_DBG("request for hci%u", dev_id);
hdev = hci_dev_get(dev_id);
- if (!hdev) {
- kfree_skb(skb);
- return cmd_status(sk, MGMT_OP_READ_INFO, ENODEV);
- }
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_POWERED, ENODEV);
hci_dev_lock_bh(hdev);
- put_unaligned_le16(hdev->id, &rp->index);
- rp->type = hdev->dev_type;
+ up = test_bit(HCI_UP, &hdev->flags);
+ if ((cp->val && up) || (!cp->val && !up)) {
+ ret = cmd_status(sk, MGMT_OP_SET_POWERED, EALREADY);
+ goto failed;
+ }
- rp->powered = test_bit(HCI_UP, &hdev->flags);
- rp->discoverable = test_bit(HCI_ISCAN, &hdev->flags);
- rp->pairable = test_bit(HCI_PSCAN, &hdev->flags);
+ if (mgmt_pending_find(MGMT_OP_SET_POWERED, dev_id)) {
+ ret = cmd_status(sk, MGMT_OP_SET_POWERED, EBUSY);
+ goto failed;
+ }
- if (test_bit(HCI_AUTH, &hdev->flags))
- rp->sec_mode = 3;
- else if (hdev->ssp_mode > 0)
- rp->sec_mode = 4;
+ ret = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, dev_id, data, len);
+ if (ret < 0)
+ goto failed;
+
+ if (cp->val)
+ queue_work(hdev->workqueue, &hdev->power_on);
else
- rp->sec_mode = 2;
+ queue_work(hdev->workqueue, &hdev->power_off);
- bacpy(&rp->bdaddr, &hdev->bdaddr);
- memcpy(rp->features, hdev->features, 8);
- memcpy(rp->dev_class, hdev->dev_class, 3);
- put_unaligned_le16(hdev->manufacturer, &rp->manufacturer);
- rp->hci_ver = hdev->hci_ver;
- put_unaligned_le16(hdev->hci_rev, &rp->hci_rev);
+ ret = 0;
+failed:
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
+ return ret;
+}
- if (sock_queue_rcv_skb(sk, skb) < 0)
- kfree_skb(skb);
+static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct mgmt_mode *cp;
+ struct hci_dev *hdev;
+ u16 dev_id;
+ u8 scan;
+ int err;
- return 0;
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, ENETDOWN);
+ goto failed;
+ }
+
+ if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, dev_id) ||
+ mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, dev_id)) {
+ err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, EBUSY);
+ goto failed;
+ }
+
+ if (cp->val == test_bit(HCI_ISCAN, &hdev->flags) &&
+ test_bit(HCI_PSCAN, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, EALREADY);
+ goto failed;
+ }
+
+ err = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, dev_id, data, len);
+ if (err < 0)
+ goto failed;
+
+ scan = SCAN_PAGE;
+
+ if (cp->val)
+ scan |= SCAN_INQUIRY;
+
+ err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+ if (err < 0)
+ mgmt_pending_remove(MGMT_OP_SET_DISCOVERABLE, dev_id);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
}
-int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
{
- unsigned char *buf;
- struct mgmt_hdr *hdr;
- u16 opcode, len;
+ struct mgmt_mode *cp;
+ struct hci_dev *hdev;
+ u16 dev_id;
+ u8 scan;
int err;
- BT_DBG("got %zu bytes", msglen);
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
- if (msglen < sizeof(*hdr))
- return -EINVAL;
+ BT_DBG("request for hci%u", dev_id);
- buf = kmalloc(msglen, GFP_ATOMIC);
- if (!buf)
- return -ENOMEM;
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_CONNECTABLE, ENODEV);
- if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
- err = -EFAULT;
- goto done;
- }
+ hci_dev_lock_bh(hdev);
- hdr = (struct mgmt_hdr *) buf;
- opcode = get_unaligned_le16(&hdr->opcode);
- len = get_unaligned_le16(&hdr->len);
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_SET_CONNECTABLE, ENETDOWN);
+ goto failed;
+ }
- if (len != msglen - sizeof(*hdr)) {
- err = -EINVAL;
- goto done;
+ if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, dev_id) ||
+ mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, dev_id)) {
+ err = cmd_status(sk, MGMT_OP_SET_CONNECTABLE, EBUSY);
+ goto failed;
}
- switch (opcode) {
- case MGMT_OP_READ_VERSION:
- err = read_version(sk);
- break;
- case MGMT_OP_READ_INDEX_LIST:
- err = read_index_list(sk);
- break;
- case MGMT_OP_READ_INFO:
- err = read_controller_info(sk, buf + sizeof(*hdr), len);
- break;
- default:
- BT_DBG("Unknown op %u", opcode);
- err = cmd_status(sk, opcode, 0x01);
- break;
+ if (cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_SET_CONNECTABLE, EALREADY);
+ goto failed;
}
+ err = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, dev_id, data, len);
if (err < 0)
- goto done;
+ goto failed;
- err = msglen;
+ if (cp->val)
+ scan = SCAN_PAGE;
+ else
+ scan = 0;
+
+ err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+ if (err < 0)
+ mgmt_pending_remove(MGMT_OP_SET_CONNECTABLE, dev_id);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
-done:
- kfree(buf);
return err;
}
-static int mgmt_event(u16 event, void *data, u16 data_len)
+static int mgmt_event(u16 event, void *data, u16 data_len, struct sock *skip_sk)
{
struct sk_buff *skb;
struct mgmt_hdr *hdr;
memcpy(skb_put(skb, data_len), data, data_len);
- hci_send_to_sock(NULL, skb);
+ hci_send_to_sock(NULL, skb, skip_sk);
kfree_skb(skb);
return 0;
}
-int mgmt_index_added(u16 index)
+static int send_mode_rsp(struct sock *sk, u16 opcode, u16 index, u8 val)
{
- struct mgmt_ev_index_added ev;
+ struct mgmt_mode rp;
- put_unaligned_le16(index, &ev.index);
+ put_unaligned_le16(index, &rp.index);
+ rp.val = val;
- return mgmt_event(MGMT_EV_INDEX_ADDED, &ev, sizeof(ev));
+ return cmd_complete(sk, opcode, &rp, sizeof(rp));
}
-int mgmt_index_removed(u16 index)
+static int set_pairable(struct sock *sk, unsigned char *data, u16 len)
{
- struct mgmt_ev_index_added ev;
+ struct mgmt_mode *cp, ev;
+ struct hci_dev *hdev;
+ u16 dev_id;
+ int err;
- put_unaligned_le16(index, &ev.index);
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_PAIRABLE, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (cp->val)
+ set_bit(HCI_PAIRABLE, &hdev->flags);
+ else
+ clear_bit(HCI_PAIRABLE, &hdev->flags);
+
+ err = send_mode_rsp(sk, MGMT_OP_SET_PAIRABLE, dev_id, cp->val);
+ if (err < 0)
+ goto failed;
+
+ put_unaligned_le16(dev_id, &ev.index);
+ ev.val = cp->val;
+
+ err = mgmt_event(MGMT_EV_PAIRABLE, &ev, sizeof(ev), sk);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static u8 get_service_classes(struct hci_dev *hdev)
+{
+ struct list_head *p;
+ u8 val = 0;
+
+ list_for_each(p, &hdev->uuids) {
+ struct bt_uuid *uuid = list_entry(p, struct bt_uuid, list);
+
+ val |= uuid->svc_hint;
+ }
+
+ return val;
+}
+
+static int update_class(struct hci_dev *hdev)
+{
+ u8 cod[3];
+
+ BT_DBG("%s", hdev->name);
+
+ if (test_bit(HCI_SERVICE_CACHE, &hdev->flags))
+ return 0;
+
+ cod[0] = hdev->minor_class;
+ cod[1] = hdev->major_class;
+ cod[2] = get_service_classes(hdev);
+
+ if (memcmp(cod, hdev->dev_class, 3) == 0)
+ return 0;
+
+ return hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
+}
+
+static int add_uuid(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct mgmt_cp_add_uuid *cp;
+ struct hci_dev *hdev;
+ struct bt_uuid *uuid;
+ u16 dev_id;
+ int err;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_ADD_UUID, ENODEV);
- return mgmt_event(MGMT_EV_INDEX_REMOVED, &ev, sizeof(ev));
+ hci_dev_lock_bh(hdev);
+
+ uuid = kmalloc(sizeof(*uuid), GFP_ATOMIC);
+ if (!uuid) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ memcpy(uuid->uuid, cp->uuid, 16);
+ uuid->svc_hint = cp->svc_hint;
+
+ list_add(&uuid->list, &hdev->uuids);
+
+ err = update_class(hdev);
+ if (err < 0)
+ goto failed;
+
+ err = cmd_complete(sk, MGMT_OP_ADD_UUID, &dev_id, sizeof(dev_id));
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int remove_uuid(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct list_head *p, *n;
+ struct mgmt_cp_add_uuid *cp;
+ struct hci_dev *hdev;
+ u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+ u16 dev_id;
+ int err, found;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_REMOVE_UUID, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
+ err = hci_uuids_clear(hdev);
+ goto unlock;
+ }
+
+ found = 0;
+
+ list_for_each_safe(p, n, &hdev->uuids) {
+ struct bt_uuid *match = list_entry(p, struct bt_uuid, list);
+
+ if (memcmp(match->uuid, cp->uuid, 16) != 0)
+ continue;
+
+ list_del(&match->list);
+ found++;
+ }
+
+ if (found == 0) {
+ err = cmd_status(sk, MGMT_OP_REMOVE_UUID, ENOENT);
+ goto unlock;
+ }
+
+ err = update_class(hdev);
+ if (err < 0)
+ goto unlock;
+
+ err = cmd_complete(sk, MGMT_OP_REMOVE_UUID, &dev_id, sizeof(dev_id));
+
+unlock:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int set_dev_class(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_set_dev_class *cp;
+ u16 dev_id;
+ int err;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_DEV_CLASS, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ hdev->major_class = cp->major;
+ hdev->minor_class = cp->minor;
+
+ err = update_class(hdev);
+
+ if (err == 0)
+ err = cmd_complete(sk, MGMT_OP_SET_DEV_CLASS, &dev_id,
+ sizeof(dev_id));
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int set_service_cache(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_set_service_cache *cp;
+ u16 dev_id;
+ int err;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_SERVICE_CACHE, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ BT_DBG("hci%u enable %d", dev_id, cp->enable);
+
+ if (cp->enable) {
+ set_bit(HCI_SERVICE_CACHE, &hdev->flags);
+ err = 0;
+ } else {
+ clear_bit(HCI_SERVICE_CACHE, &hdev->flags);
+ err = update_class(hdev);
+ }
+
+ if (err == 0)
+ err = cmd_complete(sk, MGMT_OP_SET_SERVICE_CACHE, &dev_id,
+ sizeof(dev_id));
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int load_keys(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_load_keys *cp;
+ u16 dev_id, key_count, expected_len;
+ int i;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+ key_count = get_unaligned_le16(&cp->key_count);
+
+ expected_len = sizeof(*cp) + key_count * sizeof(struct mgmt_key_info);
+ if (expected_len != len) {
+ BT_ERR("load_keys: expected %u bytes, got %u bytes",
+ len, expected_len);
+ return -EINVAL;
+ }
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_LOAD_KEYS, ENODEV);
+
+ BT_DBG("hci%u debug_keys %u key_count %u", dev_id, cp->debug_keys,
+ key_count);
+
+ hci_dev_lock_bh(hdev);
+
+ hci_link_keys_clear(hdev);
+
+ set_bit(HCI_LINK_KEYS, &hdev->flags);
+
+ if (cp->debug_keys)
+ set_bit(HCI_DEBUG_KEYS, &hdev->flags);
+ else
+ clear_bit(HCI_DEBUG_KEYS, &hdev->flags);
+
+ for (i = 0; i < key_count; i++) {
+ struct mgmt_key_info *key = &cp->keys[i];
+
+ hci_add_link_key(hdev, 0, &key->bdaddr, key->val, key->type,
+ key->pin_len);
+ }
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return 0;
+}
+
+static int remove_key(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_remove_key *cp;
+ struct hci_conn *conn;
+ u16 dev_id;
+ int err;
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_REMOVE_KEY, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ err = hci_remove_link_key(hdev, &cp->bdaddr);
+ if (err < 0) {
+ err = cmd_status(sk, MGMT_OP_REMOVE_KEY, -err);
+ goto unlock;
+ }
+
+ err = 0;
+
+ if (!test_bit(HCI_UP, &hdev->flags) || !cp->disconnect)
+ goto unlock;
+
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+ if (conn) {
+ struct hci_cp_disconnect dc;
+
+ put_unaligned_le16(conn->handle, &dc.handle);
+ dc.reason = 0x13; /* Remote User Terminated Connection */
+ err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, 0, NULL);
+ }
+
+unlock:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int disconnect(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_disconnect *cp;
+ struct hci_cp_disconnect dc;
+ struct hci_conn *conn;
+ u16 dev_id;
+ int err;
+
+ BT_DBG("");
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_DISCONNECT, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_DISCONNECT, ENETDOWN);
+ goto failed;
+ }
+
+ if (mgmt_pending_find(MGMT_OP_DISCONNECT, dev_id)) {
+ err = cmd_status(sk, MGMT_OP_DISCONNECT, EBUSY);
+ goto failed;
+ }
+
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+ if (!conn) {
+ err = cmd_status(sk, MGMT_OP_DISCONNECT, ENOTCONN);
+ goto failed;
+ }
+
+ err = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, dev_id, data, len);
+ if (err < 0)
+ goto failed;
+
+ put_unaligned_le16(conn->handle, &dc.handle);
+ dc.reason = 0x13; /* Remote User Terminated Connection */
+
+ err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
+ if (err < 0)
+ mgmt_pending_remove(MGMT_OP_DISCONNECT, dev_id);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int get_connections(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct mgmt_cp_get_connections *cp;
+ struct mgmt_rp_get_connections *rp;
+ struct hci_dev *hdev;
+ struct list_head *p;
+ size_t rp_len;
+ u16 dev_id, count;
+ int i, err;
+
+ BT_DBG("");
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_GET_CONNECTIONS, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ count = 0;
+ list_for_each(p, &hdev->conn_hash.list) {
+ count++;
+ }
+
+ rp_len = sizeof(*rp) + (count * sizeof(bdaddr_t));
+ rp = kmalloc(rp_len, GFP_ATOMIC);
+ if (!rp) {
+ err = -ENOMEM;
+ goto unlock;
+ }
+
+ put_unaligned_le16(dev_id, &rp->index);
+ put_unaligned_le16(count, &rp->conn_count);
+
+ read_lock(&hci_dev_list_lock);
+
+ i = 0;
+ list_for_each(p, &hdev->conn_hash.list) {
+ struct hci_conn *c = list_entry(p, struct hci_conn, list);
+
+ bacpy(&rp->conn[i++], &c->dst);
+ }
+
+ read_unlock(&hci_dev_list_lock);
+
+ err = cmd_complete(sk, MGMT_OP_GET_CONNECTIONS, rp, rp_len);
+
+unlock:
+ kfree(rp);
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+ return err;
+}
+
+static int pin_code_reply(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_pin_code_reply *cp;
+ struct hci_cp_pin_code_reply reply;
+ u16 dev_id;
+ int err;
+
+ BT_DBG("");
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_DISCONNECT, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_PIN_CODE_REPLY, ENETDOWN);
+ goto failed;
+ }
+
+ err = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, dev_id, data, len);
+ if (err < 0)
+ goto failed;
+
+ bacpy(&reply.bdaddr, &cp->bdaddr);
+ reply.pin_len = cp->pin_len;
+ memcpy(reply.pin_code, cp->pin_code, 16);
+
+ err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
+ if (err < 0)
+ mgmt_pending_remove(MGMT_OP_PIN_CODE_REPLY, dev_id);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int pin_code_neg_reply(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_pin_code_neg_reply *cp;
+ u16 dev_id;
+ int err;
+
+ BT_DBG("");
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_PIN_CODE_NEG_REPLY, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = cmd_status(sk, MGMT_OP_PIN_CODE_NEG_REPLY, ENETDOWN);
+ goto failed;
+ }
+
+ err = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, dev_id,
+ data, len);
+ if (err < 0)
+ goto failed;
+
+ err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, sizeof(bdaddr_t),
+ &cp->bdaddr);
+ if (err < 0)
+ mgmt_pending_remove(MGMT_OP_PIN_CODE_NEG_REPLY, dev_id);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int set_io_capability(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct hci_dev *hdev;
+ struct mgmt_cp_set_io_capability *cp;
+ u16 dev_id;
+
+ BT_DBG("");
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev)
+ return cmd_status(sk, MGMT_OP_SET_IO_CAPABILITY, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ hdev->io_capability = cp->io_capability;
+
+ BT_DBG("%s IO capability set to 0x%02x", hdev->name,
+ hdev->io_capability);
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return cmd_complete(sk, MGMT_OP_SET_IO_CAPABILITY,
+ &dev_id, sizeof(dev_id));
+}
+
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+{
+ unsigned char *buf;
+ struct mgmt_hdr *hdr;
+ u16 opcode, len;
+ int err;
+
+ BT_DBG("got %zu bytes", msglen);
+
+ if (msglen < sizeof(*hdr))
+ return -EINVAL;
+
+ buf = kmalloc(msglen, GFP_ATOMIC);
+ if (!buf)
+ return -ENOMEM;
+
+ if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
+ err = -EFAULT;
+ goto done;
+ }
+
+ hdr = (struct mgmt_hdr *) buf;
+ opcode = get_unaligned_le16(&hdr->opcode);
+ len = get_unaligned_le16(&hdr->len);
+
+ if (len != msglen - sizeof(*hdr)) {
+ err = -EINVAL;
+ goto done;
+ }
+
+ switch (opcode) {
+ case MGMT_OP_READ_VERSION:
+ err = read_version(sk);
+ break;
+ case MGMT_OP_READ_INDEX_LIST:
+ err = read_index_list(sk);
+ break;
+ case MGMT_OP_READ_INFO:
+ err = read_controller_info(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_POWERED:
+ err = set_powered(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_DISCOVERABLE:
+ err = set_discoverable(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_CONNECTABLE:
+ err = set_connectable(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_PAIRABLE:
+ err = set_pairable(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_ADD_UUID:
+ err = add_uuid(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_REMOVE_UUID:
+ err = remove_uuid(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_DEV_CLASS:
+ err = set_dev_class(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_SERVICE_CACHE:
+ err = set_service_cache(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_LOAD_KEYS:
+ err = load_keys(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_REMOVE_KEY:
+ err = remove_key(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_DISCONNECT:
+ err = disconnect(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_GET_CONNECTIONS:
+ err = get_connections(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_PIN_CODE_REPLY:
+ err = pin_code_reply(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_PIN_CODE_NEG_REPLY:
+ err = pin_code_neg_reply(sk, buf + sizeof(*hdr), len);
+ break;
+ case MGMT_OP_SET_IO_CAPABILITY:
+ err = set_io_capability(sk, buf + sizeof(*hdr), len);
+ break;
+ default:
+ BT_DBG("Unknown op %u", opcode);
+ err = cmd_status(sk, opcode, 0x01);
+ break;
+ }
+
+ if (err < 0)
+ goto done;
+
+ err = msglen;
+
+done:
+ kfree(buf);
+ return err;
+}
+
+int mgmt_index_added(u16 index)
+{
+ struct mgmt_ev_index_added ev;
+
+ put_unaligned_le16(index, &ev.index);
+
+ return mgmt_event(MGMT_EV_INDEX_ADDED, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_index_removed(u16 index)
+{
+ struct mgmt_ev_index_added ev;
+
+ put_unaligned_le16(index, &ev.index);
+
+ return mgmt_event(MGMT_EV_INDEX_REMOVED, &ev, sizeof(ev), NULL);
+}
+
+struct cmd_lookup {
+ u8 val;
+ struct sock *sk;
+};
+
+static void mode_rsp(struct pending_cmd *cmd, void *data)
+{
+ struct mgmt_mode *cp = cmd->cmd;
+ struct cmd_lookup *match = data;
+
+ if (cp->val != match->val)
+ return;
+
+ send_mode_rsp(cmd->sk, cmd->opcode, cmd->index, cp->val);
+
+ list_del(&cmd->list);
+
+ if (match->sk == NULL) {
+ match->sk = cmd->sk;
+ sock_hold(match->sk);
+ }
+
+ mgmt_pending_free(cmd);
+}
+
+int mgmt_powered(u16 index, u8 powered)
+{
+ struct mgmt_mode ev;
+ struct cmd_lookup match = { powered, NULL };
+ int ret;
+
+ mgmt_pending_foreach(MGMT_OP_SET_POWERED, index, mode_rsp, &match);
+
+ put_unaligned_le16(index, &ev.index);
+ ev.val = powered;
+
+ ret = mgmt_event(MGMT_EV_POWERED, &ev, sizeof(ev), match.sk);
+
+ if (match.sk)
+ sock_put(match.sk);
+
+ return ret;
+}
+
+int mgmt_discoverable(u16 index, u8 discoverable)
+{
+ struct mgmt_mode ev;
+ struct cmd_lookup match = { discoverable, NULL };
+ int ret;
+
+ mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, index,
+ mode_rsp, &match);
+
+ put_unaligned_le16(index, &ev.index);
+ ev.val = discoverable;
+
+ ret = mgmt_event(MGMT_EV_DISCOVERABLE, &ev, sizeof(ev), match.sk);
+
+ if (match.sk)
+ sock_put(match.sk);
+
+ return ret;
+}
+
+int mgmt_connectable(u16 index, u8 connectable)
+{
+ struct mgmt_mode ev;
+ struct cmd_lookup match = { connectable, NULL };
+ int ret;
+
+ mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, index, mode_rsp, &match);
+
+ put_unaligned_le16(index, &ev.index);
+ ev.val = connectable;
+
+ ret = mgmt_event(MGMT_EV_CONNECTABLE, &ev, sizeof(ev), match.sk);
+
+ if (match.sk)
+ sock_put(match.sk);
+
+ return ret;
+}
+
+int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type)
+{
+ struct mgmt_ev_new_key ev;
+
+ memset(&ev, 0, sizeof(ev));
+
+ put_unaligned_le16(index, &ev.index);
+
+ bacpy(&ev.key.bdaddr, &key->bdaddr);
+ ev.key.type = key->type;
+ memcpy(ev.key.val, key->val, 16);
+ ev.key.pin_len = key->pin_len;
+ ev.old_key_type = old_key_type;
+
+ return mgmt_event(MGMT_EV_NEW_KEY, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_connected(u16 index, bdaddr_t *bdaddr)
+{
+ struct mgmt_ev_connected ev;
+
+ put_unaligned_le16(index, &ev.index);
+ bacpy(&ev.bdaddr, bdaddr);
+
+ return mgmt_event(MGMT_EV_CONNECTED, &ev, sizeof(ev), NULL);
+}
+
+static void disconnect_rsp(struct pending_cmd *cmd, void *data)
+{
+ struct mgmt_cp_disconnect *cp = cmd->cmd;
+ struct sock **sk = data;
+ struct mgmt_rp_disconnect rp;
+
+ put_unaligned_le16(cmd->index, &rp.index);
+ bacpy(&rp.bdaddr, &cp->bdaddr);
+
+ cmd_complete(cmd->sk, MGMT_OP_DISCONNECT, &rp, sizeof(rp));
+
+ *sk = cmd->sk;
+ sock_hold(*sk);
+
+ list_del(&cmd->list);
+ mgmt_pending_free(cmd);
+}
+
+int mgmt_disconnected(u16 index, bdaddr_t *bdaddr)
+{
+ struct mgmt_ev_disconnected ev;
+ struct sock *sk = NULL;
+ int err;
+
+ mgmt_pending_foreach(MGMT_OP_DISCONNECT, index, disconnect_rsp, &sk);
+
+ put_unaligned_le16(index, &ev.index);
+ bacpy(&ev.bdaddr, bdaddr);
+
+ err = mgmt_event(MGMT_EV_DISCONNECTED, &ev, sizeof(ev), sk);
+
+ if (sk)
+ sock_put(sk);
+
+ return err;
+}
+
+int mgmt_disconnect_failed(u16 index)
+{
+ struct pending_cmd *cmd;
+ int err;
+
+ cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, index);
+ if (!cmd)
+ return -ENOENT;
+
+ err = cmd_status(cmd->sk, MGMT_OP_DISCONNECT, EIO);
+
+ list_del(&cmd->list);
+ mgmt_pending_free(cmd);
+
+ return err;
+}
+
+int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status)
+{
+ struct mgmt_ev_connect_failed ev;
+
+ put_unaligned_le16(index, &ev.index);
+ bacpy(&ev.bdaddr, bdaddr);
+ ev.status = status;
+
+ return mgmt_event(MGMT_EV_CONNECT_FAILED, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr)
+{
+ struct mgmt_ev_pin_code_request ev;
+
+ put_unaligned_le16(index, &ev.index);
+ bacpy(&ev.bdaddr, bdaddr);
+
+ return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
+{
+ struct pending_cmd *cmd;
+ int err;
+
+ cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, index);
+ if (!cmd)
+ return -ENOENT;
+
+ if (status != 0)
+ err = cmd_status(cmd->sk, MGMT_OP_PIN_CODE_REPLY, status);
+ else
+ err = cmd_complete(cmd->sk, MGMT_OP_PIN_CODE_REPLY,
+ bdaddr, sizeof(*bdaddr));
+
+ list_del(&cmd->list);
+ mgmt_pending_free(cmd);
+
+ return err;
+}
+
+int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
+{
+ struct pending_cmd *cmd;
+ int err;
+
+ cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, index);
+ if (!cmd)
+ return -ENOENT;
+
+ if (status != 0)
+ err = cmd_status(cmd->sk, MGMT_OP_PIN_CODE_NEG_REPLY, status);
+ else
+ err = cmd_complete(cmd->sk, MGMT_OP_PIN_CODE_NEG_REPLY,
+ bdaddr, sizeof(*bdaddr));
+
+ list_del(&cmd->list);
+ mgmt_pending_free(cmd);
+
+ return err;
}
projects / mirror_ubuntu-bionic-kernel.git / blobdiff