diff options
Diffstat (limited to 'net/bluetooth/l2cap_core.c')
| -rw-r--r-- | net/bluetooth/l2cap_core.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 9f77432dbe38..007317b072b4 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; @@ -4394,6 +4402,12 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, l2cap_chan_lock(chan); + if (chan->state != BT_DISCONN) { + l2cap_chan_unlock(chan); + mutex_unlock(&conn->chan_lock); + return 0; + } + l2cap_chan_hold(chan); l2cap_chan_del(chan, 0); @@ -5291,7 +5305,14 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn, memset(&rsp, 0, sizeof(rsp)); - err = hci_check_conn_params(min, max, latency, to_multiplier); + if (min < hcon->le_conn_min_interval || + max > hcon->le_conn_max_interval) { + BT_DBG("requested connection interval exceeds current bounds."); + err = -EINVAL; + } else { + err = hci_check_conn_params(min, max, latency, to_multiplier); + } + if (err) rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED); else |