diff options
| author |   liuyacan <liuyacan@corp.netease.com> | 2021-08-16 10:51:13 +0800 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2021-08-30 13:55:55 +0000 |
| commit | 1b6b09bb514831050b23397c078933c2ace3ff36 (patch) | |
| tree | 39b6befa9bc9af7f03302c37d3af6f44636a4709 /src/vnet/session | |
| parent | 7da9b5be41395cc6355f9cf278106aae7fd9f991 (diff) | |
tcp: Allow accepting session to send custom packet
Tcp may want to send acks in established, but the app
has not called accept() yet.
Type: improvement
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: I43b8cd386e533ca95c8ec260a0a1f695ea140358
Diffstat (limited to 'src/vnet/session')
| -rw-r--r-- | src/vnet/session/session_node.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c index b8b5ce2d8de..969f88c7e36 100644 --- a/src/vnet/session/session_node.c +++ b/src/vnet/session/session_node.c @@ -1018,7 +1018,15 @@ session_tx_not_ready (session_t * s, u8 peek_data) /* Can retransmit for closed sessions but can't send new data if * session is not ready or closed */ else if (s->session_state < SESSION_STATE_READY) - return 1; + { + /* Allow accepting session to send custom packets. + * For instance, tcp want to send acks in established, but + * the app has not called accept() yet */ + if (s->session_state == SESSION_STATE_ACCEPTING && + (s->flags & SESSION_F_CUSTOM_TX)) + return 0; + return 1; + } else if (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED) { /* Allow closed transports to still send custom packets. |