[DCCP]: Revert patch which disables bidirectional mode
This reverts an earlier patch which disabled bidirectional mode, meaning that
a listening (passive) socket was not allowed to write to the other (active)
end of the connection.
This mode had been disabled when there were problems with CCID3, but it
imposes a constraint on socket programming and thus hinders deployment.
A change is included to ignore RX feedback received by the TX CCID3 module.
Many thanks to Andre Noll for pointing out this issue.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 5361a4d..746f79d 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -545,12 +545,7 @@
/* set idle flag */
hctx->ccid3hctx_idle = 1;
break;
- case TFRC_SSTATE_NO_SENT:
- /*
- * XXX when implementing bidirectional rx/tx check this again
- */
- DCCP_WARN("Illegal ACK received - no packet sent\n");
- /* fall through */
+ case TFRC_SSTATE_NO_SENT: /* fall through */
case TFRC_SSTATE_TERM: /* ignore feedback when closing */
break;
}