[DCCP] Fix warning message about illegal ACK
This avoids a (harmless) warning message being printed at the DCCP server
(the receiver of a DCCP half connection).
Incoming packets are both directed to
* ccid_hc_rx_packet_recv() for the server half
* ccid_hc_tx_packet_recv() for the client half
The message gets printed since on a server the client half is currently not
sending data packets.
This is resolved for the moment by checking the DCCP-role first. In future
times (bidirectional DCCP connections), this test may have to be more
sophisticated.
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
net/dccp/ccids/ccid3.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -555,7 +555,8 @@ static void ccid3_hc_tx_packet_recv(stru
hctx->ccid3hctx_idle = 1;
break;
case TFRC_SSTATE_NO_SENT:
- DCCP_WARN("Illegal ACK received - no packet has been sent\n");
+ if(dccp_sk(sk)->dccps_role == DCCP_ROLE_CLIENT)
+ DCCP_WARN("Illegal ACK received - no packet sent\n");
/* fall through */
case TFRC_SSTATE_TERM: /* ignore feedback when closing */
break;
-
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