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authorMat Martineau <mathewm@codeaurora.org>2011-07-22 14:53:58 -0700
committerGustavo F. Padovan <gustavo@padovan.org>2011-09-27 18:15:55 -0300
commit449357200c5d73d80a9c42dee5dafed684b3cd17 (patch)
tree333e387c99dc8cd03d334e61f1a5147b4e5bd8f9
parent9fd481e03c1e9c76c814b88b9ea1cbda9afb0812 (diff)
Bluetooth: Linearize skbs for use in BNEP, CMTP, HIDP, and RFCOMM
Fragmented skbs are only encountered when receiving ERTM or streaming mode L2CAP data. BNEP, CMTP, HIDP, and RFCOMM generally use basic mode, but they need to handle fragments without crashing. Signed-off-by: Mat Martineau <mathewm@codeaurora.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
-rw-r--r--net/bluetooth/bnep/core.c5
-rw-r--r--net/bluetooth/cmtp/core.c5
-rw-r--r--net/bluetooth/hidp/core.c10
-rw-r--r--net/bluetooth/rfcomm/core.c5
4 files changed, 20 insertions, 5 deletions
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index d9edfe8bf9d..91bcd3a961e 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -492,7 +492,10 @@ static int bnep_session(void *arg)
/* RX */
while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
skb_orphan(skb);
- bnep_rx_frame(s, skb);
+ if (!skb_linearize(skb))
+ bnep_rx_frame(s, skb);
+ else
+ kfree_skb(skb);
}
if (sk->sk_state != BT_CONNECTED)
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 521baa4fe83..7d00ddf9e9d 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -302,7 +302,10 @@ static int cmtp_session(void *arg)
while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
skb_orphan(skb);
- cmtp_recv_frame(session, skb);
+ if (!skb_linearize(skb))
+ cmtp_recv_frame(session, skb);
+ else
+ kfree_skb(skb);
}
cmtp_process_transmit(session);
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index b83979c548b..075a3e920ca 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -716,12 +716,18 @@ static int hidp_session(void *arg)
while ((skb = skb_dequeue(&ctrl_sk->sk_receive_queue))) {
skb_orphan(skb);
- hidp_recv_ctrl_frame(session, skb);
+ if (!skb_linearize(skb))
+ hidp_recv_ctrl_frame(session, skb);
+ else
+ kfree_skb(skb);
}
while ((skb = skb_dequeue(&intr_sk->sk_receive_queue))) {
skb_orphan(skb);
- hidp_recv_intr_frame(session, skb);
+ if (!skb_linearize(skb))
+ hidp_recv_intr_frame(session, skb);
+ else
+ kfree_skb(skb);
}
hidp_process_transmit(session);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 5ba3f6df665..38b618c96de 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -1853,7 +1853,10 @@ static inline void rfcomm_process_rx(struct rfcomm_session *s)
/* Get data directly from socket receive queue without copying it. */
while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
skb_orphan(skb);
- rfcomm_recv_frame(s, skb);
+ if (!skb_linearize(skb))
+ rfcomm_recv_frame(s, skb);
+ else
+ kfree_skb(skb);
}
if (sk->sk_state == BT_CLOSED) {