Bluetooth: A2MP: Process A2MP Get AMP Assoc Rsp

When receiving A2MP Get AMP Assoc Response save assoc data to remote
AMP controller list and prepare for creating physical link.

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

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 594df96433652084b6ce8370d02f431ce693f4b2..d0fde05e8b17740b7f27f9650bf406470abcd2a4 100644 (file)
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -343,6 +343,61 @@ done:
        return 0;
 }
 
+static int a2mp_getampassoc_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
+                               struct a2mp_cmd *hdr)
+{
+       struct a2mp_amp_assoc_rsp *rsp = (void *) skb->data;
+       u16 len = le16_to_cpu(hdr->len);
+       struct hci_dev *hdev;
+       struct amp_ctrl *ctrl;
+       struct hci_conn *hcon;
+
+       if (len < sizeof(*rsp))
+               return -EINVAL;
+
+       BT_DBG("id %d status 0x%2.2x assoc len %u", rsp->id, rsp->status,
+              len - sizeof(*rsp));
+
+       if (rsp->status)
+               return -EINVAL;
+
+       /* Save remote ASSOC data */
+       ctrl = amp_ctrl_lookup(mgr, rsp->id);
+       if (ctrl) {
+               u8 *assoc, assoc_len = len - sizeof(*rsp);
+
+               assoc = kzalloc(assoc_len, GFP_KERNEL);
+               if (!assoc) {
+                       amp_ctrl_put(ctrl);
+                       return -ENOMEM;
+               }
+
+               memcpy(assoc, rsp->amp_assoc, assoc_len);
+               ctrl->assoc = assoc;
+               ctrl->assoc_len = assoc_len;
+               ctrl->assoc_rem_len = assoc_len;
+               ctrl->assoc_len_so_far = 0;
+
+               amp_ctrl_put(ctrl);
+       }
+
+       /* Create Phys Link */
+       hdev = hci_dev_get(rsp->id);
+       if (!hdev)
+               return -EINVAL;
+
+       hcon = phylink_add(hdev, mgr, rsp->id);
+       if (!hcon)
+               goto done;
+
+       BT_DBG("Created hcon %p: loc:%d -> rem:%d", hcon, hdev->id, rsp->id);
+
+done:
+       hci_dev_put(hdev);
+       skb_pull(skb, len);
+       return 0;
+}
+
 static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
                                   struct a2mp_cmd *hdr)
 {
@@ -502,8 +557,11 @@ static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
                        err = a2mp_getinfo_rsp(mgr, skb, hdr);
                        break;
 
-               case A2MP_CHANGE_RSP:
                case A2MP_GETAMPASSOC_RSP:
+                       err = a2mp_getampassoc_rsp(mgr, skb, hdr);
+                       break;
+
+               case A2MP_CHANGE_RSP:
                case A2MP_CREATEPHYSLINK_RSP:
                case A2MP_DISCONNPHYSLINK_RSP:
                        err = a2mp_cmd_rsp(mgr, skb, hdr);