From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
The spec defines PSM and LE_PSM as different domains so a listen on the
same PSM is valid if the address type points to a different bearer.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
net/bluetooth/l2cap_core.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b53acd6c9a3d..8da73ca8c111 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -168,11 +168,18 @@ static struct l2cap_chan *l2cap_get_chan_by_ident(struct l2cap_conn *conn,
return c;
}
-static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src)
+static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src,
+ u8 src_type)
{
struct l2cap_chan *c;
list_for_each_entry(c, &chan_list, global_l) {
+ if (src_type == BDADDR_BREDR && c->src_type != BDADDR_BREDR)
+ continue;
+
+ if (src_type != BDADDR_BREDR && c->src_type == BDADDR_BREDR)
+ continue;
+
if (c->sport == psm && !bacmp(&c->src, src))
return c;
}
@@ -185,7 +192,7 @@ int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm)
write_lock(&chan_list_lock);
- if (psm && __l2cap_global_chan_by_addr(psm, src)) {
+ if (psm && __l2cap_global_chan_by_addr(psm, src, chan->src_type)) {
err = -EADDRINUSE;
goto done;
}
@@ -209,7 +216,8 @@ int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm)
err = -EINVAL;
for (p = start; p <= end; p += incr)
- if (!__l2cap_global_chan_by_addr(cpu_to_le16(p), src)) {
+ if (!__l2cap_global_chan_by_addr(cpu_to_le16(p), src,
+ chan->src_type)) {
chan->psm = cpu_to_le16(p);
chan->sport = cpu_to_le16(p);
err = 0;
--
2.21.0
