Bluetooth: A2MP: Process A2MP Create Physlink Request

Placeholder for A2MP Create Physlink Request.
Handles requests with invalid controler id as shown below:

...
> ACL data: handle 11 flags 0x02 dlen 50
    A2MP: Create Physical Link req: local id 1 remote id 85
      Assoc data:
        <skipped>
< ACL data: handle 11 flags 0x00 dlen 15
    A2MP: Create Physical Link rsp: local id 85 remote id 1 status 1
      Invalid Controller ID
...

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 40 insertions, 0 deletions

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index b8eeb33d60d7..ca52a91edd29 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -243,6 +243,43 @@ clean:
         return 0;
 }
 
+static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
+                                   struct a2mp_cmd *hdr)
+{
+        struct a2mp_physlink_req *req = (void *) skb->data;
+
+        struct a2mp_physlink_rsp rsp;
+        struct hci_dev *hdev;
+
+        if (le16_to_cpu(hdr->len) < sizeof(*req))
+                return -EINVAL;
+
+        BT_DBG("local_id %d, remote_id %d", req->local_id, req->remote_id);
+
+        rsp.local_id = req->remote_id;
+        rsp.remote_id = req->local_id;
+
+        hdev = hci_dev_get(req->remote_id);
+        if (!hdev || hdev->amp_type != HCI_AMP) {
+                rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+                goto send_rsp;
+        }
+
+        /* TODO process physlink create */
+
+        rsp.status = A2MP_STATUS_SUCCESS;
+
+send_rsp:
+        if (hdev)
+                hci_dev_put(hdev);
+
+        a2mp_send(mgr, A2MP_CREATEPHYSLINK_RSP, hdr->ident, sizeof(rsp),
+                  &rsp);
+
+        skb_pull(skb, le16_to_cpu(hdr->len));
+        return 0;
+}
+
 /* Handle A2MP signalling */
 static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
@@ -289,6 +326,9 @@ static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
                         break;
 
                 case A2MP_CREATEPHYSLINK_REQ:
+                        err = a2mp_createphyslink_req(mgr, skb, hdr);
+                        break;
+
                 case A2MP_DISCONNPHYSLINK_REQ:
                 case A2MP_CHANGE_RSP:
                 case A2MP_DISCOVER_RSP: