977 lines
20 KiB
C
977 lines
20 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (C) 2010 Nokia Corporation
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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/* Bluetooth HCI Management interface */
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#include <asm/uaccess.h>
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#include <asm/unaligned.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/mgmt.h>
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#define MGMT_VERSION 0
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#define MGMT_REVISION 1
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struct pending_cmd {
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struct list_head list;
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__u16 opcode;
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int index;
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void *cmd;
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struct sock *sk;
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};
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LIST_HEAD(cmd_list);
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static int cmd_status(struct sock *sk, u16 cmd, u8 status)
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{
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struct sk_buff *skb;
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struct mgmt_hdr *hdr;
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struct mgmt_ev_cmd_status *ev;
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BT_DBG("sock %p", sk);
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skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_ATOMIC);
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if (!skb)
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return -ENOMEM;
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hdr = (void *) skb_put(skb, sizeof(*hdr));
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hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
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hdr->len = cpu_to_le16(sizeof(*ev));
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ev = (void *) skb_put(skb, sizeof(*ev));
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ev->status = status;
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put_unaligned_le16(cmd, &ev->opcode);
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if (sock_queue_rcv_skb(sk, skb) < 0)
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kfree_skb(skb);
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return 0;
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}
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static int read_version(struct sock *sk)
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{
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struct sk_buff *skb;
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struct mgmt_hdr *hdr;
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struct mgmt_ev_cmd_complete *ev;
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struct mgmt_rp_read_version *rp;
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BT_DBG("sock %p", sk);
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skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
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if (!skb)
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return -ENOMEM;
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hdr = (void *) skb_put(skb, sizeof(*hdr));
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hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
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hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
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ev = (void *) skb_put(skb, sizeof(*ev));
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put_unaligned_le16(MGMT_OP_READ_VERSION, &ev->opcode);
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rp = (void *) skb_put(skb, sizeof(*rp));
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rp->version = MGMT_VERSION;
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put_unaligned_le16(MGMT_REVISION, &rp->revision);
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if (sock_queue_rcv_skb(sk, skb) < 0)
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kfree_skb(skb);
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return 0;
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}
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static int read_index_list(struct sock *sk)
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{
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struct sk_buff *skb;
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struct mgmt_hdr *hdr;
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struct mgmt_ev_cmd_complete *ev;
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struct mgmt_rp_read_index_list *rp;
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struct list_head *p;
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size_t body_len;
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u16 count;
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int i;
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BT_DBG("sock %p", sk);
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read_lock(&hci_dev_list_lock);
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count = 0;
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list_for_each(p, &hci_dev_list) {
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count++;
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}
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body_len = sizeof(*ev) + sizeof(*rp) + (2 * count);
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skb = alloc_skb(sizeof(*hdr) + body_len, GFP_ATOMIC);
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if (!skb) {
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read_unlock(&hci_dev_list_lock);
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return -ENOMEM;
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}
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hdr = (void *) skb_put(skb, sizeof(*hdr));
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hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
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hdr->len = cpu_to_le16(body_len);
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ev = (void *) skb_put(skb, sizeof(*ev));
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put_unaligned_le16(MGMT_OP_READ_INDEX_LIST, &ev->opcode);
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rp = (void *) skb_put(skb, sizeof(*rp) + (2 * count));
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put_unaligned_le16(count, &rp->num_controllers);
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i = 0;
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list_for_each(p, &hci_dev_list) {
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struct hci_dev *d = list_entry(p, struct hci_dev, list);
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hci_del_off_timer(d);
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set_bit(HCI_MGMT, &d->flags);
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if (test_bit(HCI_SETUP, &d->flags))
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continue;
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put_unaligned_le16(d->id, &rp->index[i++]);
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BT_DBG("Added hci%u", d->id);
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}
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read_unlock(&hci_dev_list_lock);
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if (sock_queue_rcv_skb(sk, skb) < 0)
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kfree_skb(skb);
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return 0;
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}
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static int read_controller_info(struct sock *sk, unsigned char *data, u16 len)
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{
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struct sk_buff *skb;
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struct mgmt_hdr *hdr;
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struct mgmt_ev_cmd_complete *ev;
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struct mgmt_rp_read_info *rp;
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struct mgmt_cp_read_info *cp;
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struct hci_dev *hdev;
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u16 dev_id;
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BT_DBG("sock %p", sk);
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if (len != 2)
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return cmd_status(sk, MGMT_OP_READ_INFO, EINVAL);
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skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
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if (!skb)
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return -ENOMEM;
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hdr = (void *) skb_put(skb, sizeof(*hdr));
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hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
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hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
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ev = (void *) skb_put(skb, sizeof(*ev));
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put_unaligned_le16(MGMT_OP_READ_INFO, &ev->opcode);
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rp = (void *) skb_put(skb, sizeof(*rp));
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cp = (void *) data;
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dev_id = get_unaligned_le16(&cp->index);
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BT_DBG("request for hci%u", dev_id);
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hdev = hci_dev_get(dev_id);
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if (!hdev) {
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kfree_skb(skb);
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return cmd_status(sk, MGMT_OP_READ_INFO, ENODEV);
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}
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hci_del_off_timer(hdev);
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hci_dev_lock_bh(hdev);
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set_bit(HCI_MGMT, &hdev->flags);
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put_unaligned_le16(hdev->id, &rp->index);
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rp->type = hdev->dev_type;
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rp->powered = test_bit(HCI_UP, &hdev->flags);
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rp->connectable = test_bit(HCI_PSCAN, &hdev->flags);
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rp->discoverable = test_bit(HCI_ISCAN, &hdev->flags);
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rp->pairable = test_bit(HCI_PSCAN, &hdev->flags);
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if (test_bit(HCI_AUTH, &hdev->flags))
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rp->sec_mode = 3;
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else if (hdev->ssp_mode > 0)
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rp->sec_mode = 4;
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else
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rp->sec_mode = 2;
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bacpy(&rp->bdaddr, &hdev->bdaddr);
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memcpy(rp->features, hdev->features, 8);
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memcpy(rp->dev_class, hdev->dev_class, 3);
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put_unaligned_le16(hdev->manufacturer, &rp->manufacturer);
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rp->hci_ver = hdev->hci_ver;
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put_unaligned_le16(hdev->hci_rev, &rp->hci_rev);
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hci_dev_unlock_bh(hdev);
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hci_dev_put(hdev);
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if (sock_queue_rcv_skb(sk, skb) < 0)
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kfree_skb(skb);
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return 0;
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}
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static void mgmt_pending_free(struct pending_cmd *cmd)
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{
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sock_put(cmd->sk);
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kfree(cmd->cmd);
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kfree(cmd);
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}
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static int mgmt_pending_add(struct sock *sk, u16 opcode, int index,
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void *data, u16 len)
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{
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struct pending_cmd *cmd;
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cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
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if (!cmd)
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return -ENOMEM;
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cmd->opcode = opcode;
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cmd->index = index;
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cmd->cmd = kmalloc(len, GFP_ATOMIC);
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if (!cmd->cmd) {
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kfree(cmd);
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return -ENOMEM;
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}
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memcpy(cmd->cmd, data, len);
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cmd->sk = sk;
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sock_hold(sk);
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list_add(&cmd->list, &cmd_list);
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return 0;
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}
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static void mgmt_pending_foreach(u16 opcode, int index,
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void (*cb)(struct pending_cmd *cmd, void *data),
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void *data)
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{
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struct list_head *p, *n;
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list_for_each_safe(p, n, &cmd_list) {
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struct pending_cmd *cmd;
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cmd = list_entry(p, struct pending_cmd, list);
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if (cmd->opcode != opcode)
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continue;
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if (index >= 0 && cmd->index != index)
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continue;
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cb(cmd, data);
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}
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}
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static struct pending_cmd *mgmt_pending_find(u16 opcode, int index)
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{
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struct list_head *p;
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list_for_each(p, &cmd_list) {
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struct pending_cmd *cmd;
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cmd = list_entry(p, struct pending_cmd, list);
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if (cmd->opcode != opcode)
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continue;
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if (index >= 0 && cmd->index != index)
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continue;
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return cmd;
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}
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return NULL;
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}
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static void mgmt_pending_remove(u16 opcode, int index)
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{
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struct pending_cmd *cmd;
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cmd = mgmt_pending_find(opcode, index);
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if (cmd == NULL)
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return;
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list_del(&cmd->list);
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mgmt_pending_free(cmd);
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}
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static int set_powered(struct sock *sk, unsigned char *data, u16 len)
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{
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struct mgmt_mode *cp;
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struct hci_dev *hdev;
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u16 dev_id;
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int ret, up;
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cp = (void *) data;
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dev_id = get_unaligned_le16(&cp->index);
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BT_DBG("request for hci%u", dev_id);
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hdev = hci_dev_get(dev_id);
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if (!hdev)
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return cmd_status(sk, MGMT_OP_SET_POWERED, ENODEV);
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hci_dev_lock_bh(hdev);
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up = test_bit(HCI_UP, &hdev->flags);
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if ((cp->val && up) || (!cp->val && !up)) {
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ret = cmd_status(sk, MGMT_OP_SET_POWERED, EALREADY);
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goto failed;
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}
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if (mgmt_pending_find(MGMT_OP_SET_POWERED, dev_id)) {
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ret = cmd_status(sk, MGMT_OP_SET_POWERED, EBUSY);
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goto failed;
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}
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ret = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, dev_id, data, len);
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if (ret < 0)
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goto failed;
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if (cp->val)
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queue_work(hdev->workqueue, &hdev->power_on);
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else
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queue_work(hdev->workqueue, &hdev->power_off);
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ret = 0;
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failed:
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hci_dev_unlock_bh(hdev);
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hci_dev_put(hdev);
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return ret;
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}
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static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
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{
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struct mgmt_mode *cp;
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struct hci_dev *hdev;
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u16 dev_id;
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u8 scan;
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int err;
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cp = (void *) data;
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dev_id = get_unaligned_le16(&cp->index);
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BT_DBG("request for hci%u", dev_id);
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hdev = hci_dev_get(dev_id);
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if (!hdev)
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return cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, ENODEV);
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hci_dev_lock_bh(hdev);
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if (!test_bit(HCI_UP, &hdev->flags)) {
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err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, ENETDOWN);
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goto failed;
|
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}
|
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if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, dev_id) ||
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mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, dev_id)) {
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err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, EBUSY);
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goto failed;
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}
|
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if (cp->val == test_bit(HCI_ISCAN, &hdev->flags) &&
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test_bit(HCI_PSCAN, &hdev->flags)) {
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err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, EALREADY);
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goto failed;
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}
|
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err = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, dev_id, data, len);
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if (err < 0)
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goto failed;
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scan = SCAN_PAGE;
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|
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if (cp->val)
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scan |= SCAN_INQUIRY;
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err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
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if (err < 0)
|
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mgmt_pending_remove(MGMT_OP_SET_DISCOVERABLE, dev_id);
|
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failed:
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|
hci_dev_unlock_bh(hdev);
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hci_dev_put(hdev);
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|
|
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return err;
|
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}
|
|
|
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static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
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{
|
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struct mgmt_mode *cp;
|
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struct hci_dev *hdev;
|
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u16 dev_id;
|
|
u8 scan;
|
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int err;
|
|
|
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cp = (void *) data;
|
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dev_id = get_unaligned_le16(&cp->index);
|
|
|
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BT_DBG("request for hci%u", dev_id);
|
|
|
|
hdev = hci_dev_get(dev_id);
|
|
if (!hdev)
|
|
return cmd_status(sk, MGMT_OP_SET_CONNECTABLE, ENODEV);
|
|
|
|
hci_dev_lock_bh(hdev);
|
|
|
|
if (!test_bit(HCI_UP, &hdev->flags)) {
|
|
err = cmd_status(sk, MGMT_OP_SET_CONNECTABLE, 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_CONNECTABLE, EBUSY);
|
|
goto failed;
|
|
}
|
|
|
|
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 failed;
|
|
|
|
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);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int mgmt_event(u16 event, void *data, u16 data_len, struct sock *skip_sk)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct mgmt_hdr *hdr;
|
|
|
|
skb = alloc_skb(sizeof(*hdr) + data_len, GFP_ATOMIC);
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
|
|
bt_cb(skb)->channel = HCI_CHANNEL_CONTROL;
|
|
|
|
hdr = (void *) skb_put(skb, sizeof(*hdr));
|
|
hdr->opcode = cpu_to_le16(event);
|
|
hdr->len = cpu_to_le16(data_len);
|
|
|
|
memcpy(skb_put(skb, data_len), data, data_len);
|
|
|
|
hci_send_to_sock(NULL, skb, skip_sk);
|
|
kfree_skb(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int send_mode_rsp(struct sock *sk, u16 opcode, u16 index, u8 val)
|
|
{
|
|
struct mgmt_hdr *hdr;
|
|
struct mgmt_ev_cmd_complete *ev;
|
|
struct mgmt_mode *rp;
|
|
struct sk_buff *skb;
|
|
|
|
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), 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(opcode, &ev->opcode);
|
|
|
|
rp = (void *) skb_put(skb, sizeof(*rp));
|
|
put_unaligned_le16(index, &rp->index);
|
|
rp->val = val;
|
|
|
|
if (sock_queue_rcv_skb(sk, skb) < 0)
|
|
kfree_skb(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_pairable(struct sock *sk, unsigned char *data, u16 len)
|
|
{
|
|
struct mgmt_mode *cp, ev;
|
|
struct hci_dev *hdev;
|
|
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_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 int index_rsp(struct sock *sk, u16 opcode, u16 index)
|
|
{
|
|
struct mgmt_hdr *hdr;
|
|
struct mgmt_ev_cmd_complete *ev;
|
|
struct sk_buff *skb;
|
|
|
|
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(index), 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(index));
|
|
|
|
ev = (void *) skb_put(skb, sizeof(*ev));
|
|
put_unaligned_le16(opcode, &ev->opcode);
|
|
|
|
put_unaligned_le16(index, skb_put(skb, sizeof(index)));
|
|
|
|
if (sock_queue_rcv_skb(sk, skb) < 0)
|
|
kfree_skb(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
|
|
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 = index_rsp(sk, MGMT_OP_ADD_UUID, 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 = index_rsp(sk, MGMT_OP_REMOVE_UUID, 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 = index_rsp(sk, MGMT_OP_SET_DEV_CLASS, 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 = index_rsp(sk, MGMT_OP_SET_SERVICE_CACHE, dev_id);
|
|
|
|
hci_dev_unlock_bh(hdev);
|
|
hci_dev_put(hdev);
|
|
|
|
return err;
|
|
}
|
|
|
|
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;
|
|
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;
|
|
}
|