On 2018/10/31 上午8:50, Zhang Chen wrote:
The original code just follow the TCP state diagram,
but in this case, we can skip the TCPS_TIME_WAIT state to simplify
the implementation.
Signed-off-by: Zhang Chen <zhangc...@gmail.com>
---
net/filter-rewriter.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c
index bb8f4d93b1..2e26839bc2 100644
--- a/net/filter-rewriter.c
+++ b/net/filter-rewriter.c
@@ -155,12 +155,13 @@ static int handle_primary_tcp_pkt(RewriterState *rf,
* Active close step 2.
*/
if (conn->tcp_state == TCPS_FIN_WAIT_1) {
- conn->tcp_state = TCPS_TIME_WAIT;
/*
* For simplify implementation, we needn't wait 2MSL time
* in filter rewriter. Because guest kernel will track the
* TCP status and wait 2MSL time, if client resend the FIN
* packet, guest will apply the last ACK too.
+ * So, we skip the TCPS_TIME_WAIT state here and go straight
+ * to TCPS_CLOSED state.
*/
conn->tcp_state = TCPS_CLOSED;
g_hash_table_remove(rf->connection_track_table, key);
Applied.
Thanks
