Bluetooth: Update l2cap_global_chan_by_psm() to take a link type

Once connection oriented L2CAP channels become possible for LE we need
to be able to specify the link type we're interested in when looking up
L2CAP channels. Therefore, add a link_type parameter to the
l2cap_global_chan_by_psm() function which gets compared to the address
type associated with each l2cap_chan.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 11 insertions, 3 deletions

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 70be2eb8ed03..03b641c2f39d 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1703,7 +1703,8 @@ EXPORT_SYMBOL(l2cap_conn_put);
  */
 static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
                                                    bdaddr_t *src,
-                                                   bdaddr_t *dst)
+                                                   bdaddr_t *dst,
+                                                   u8 link_type)
 {
         struct l2cap_chan *c, *c1 = NULL;
 
@@ -1713,6 +1714,12 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
                 if (state && c->state != state)
                         continue;
 
+                if (link_type == ACL_LINK && c->src_type != BDADDR_BREDR)
+                        continue;
+
+                if (link_type == LE_LINK && c->src_type == BDADDR_BREDR)
+                        continue;
+
                 if (c->psm == psm) {
                         int src_match, dst_match;
                         int src_any, dst_any;
@@ -3713,7 +3720,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
         /* Check if we have socket listening on psm */
         pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, &conn->hcon->src,
-                                         &conn->hcon->dst);
+                                         &conn->hcon->dst, ACL_LINK);
         if (!pchan) {
                 result = L2CAP_CR_BAD_PSM;
                 goto sendresp;
@@ -6380,7 +6387,8 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
         if (hcon->type != ACL_LINK)
                 goto drop;
 
-        chan = l2cap_global_chan_by_psm(0, psm, &hcon->src, &hcon->dst);
+        chan = l2cap_global_chan_by_psm(0, psm, &hcon->src, &hcon->dst,
+                                        ACL_LINK);
         if (!chan)
                 goto drop;