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| author |   Johan Hedberg <johan.hedberg@nokia.com> | 2010-12-13 21:07:05 +0200 |
|---|---|---|
| committer |   Gustavo F. Padovan <padovan@profusion.mobi> | 2010-12-22 22:57:44 -0200 |
| commit | faba42eb2a8cf905ed26d540c3c93d429e327224 (patch) | |
| tree | a9cf2411c9de333efcf1616f546865301a72615d /net/bluetooth | |
| parent | Bluetooth: Add read_version management command (diff) | |
| download | linux-dev-faba42eb2a8cf905ed26d540c3c93d429e327224.tar.xz linux-dev-faba42eb2a8cf905ed26d540c3c93d429e327224.zip | |
Bluetooth: Add read_index_list management command
This patch implements the read_index_list command through which
userspace can get a list of current adapter indices.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/mgmt.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 3e24c0bf18e7..7a8e321875c9 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -62,6 +62,56 @@ static int read_version(struct sock *sk) return 0; } +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; + u16 count; + int i; + + BT_DBG("sock %p", sk); + + read_lock(&hci_dev_list_lock); + + count = 0; + list_for_each(p, &hci_dev_list) { + count++; + } + + body_len = sizeof(*ev) + sizeof(*rp) + (2 * count); + skb = alloc_skb(sizeof(*hdr) + body_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(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); + 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); + + return 0; +} + static int cmd_status(struct sock *sk, u16 cmd, u8 status) { struct sk_buff *skb; @@ -123,6 +173,9 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen) case MGMT_OP_READ_VERSION: err = read_version(sk); break; + case MGMT_OP_READ_INDEX_LIST: + err = read_index_list(sk); + break; default: BT_DBG("Unknown op %u", opcode); err = cmd_status(sk, opcode, 0x01); |