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authorFlorin Coras <fcoras@cisco.com>2023-03-19 22:03:57 -0700
committerDave Wallace <dwallacelf@gmail.com>2023-05-04 11:57:27 +0000
commitc9fb987a9d571db38e3c05d37a4886c63b4820a6 (patch)
treefba42a771d7391578e30aee74d5bb7be310dc5f3
parent6f8335282267bf1bbc9fbbb6c7057f2a47a79de8 (diff)
session: cleanup ho lookup table on close
Make sure half-open table is cleaned up on close and cleanup of half-open. Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id7ad177f364d6395f7379dc927e449a40547510e
-rw-r--r--src/vnet/session/session.c37
-rw-r--r--src/vnet/tcp/tcp.c8
2 files changed, 39 insertions, 6 deletions
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index 93bdf6cba1f..1b9f9de2a1b 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -307,8 +307,19 @@ session_cleanup_half_open (session_handle_t ho_handle)
ho->connection_index, ho->app_index /* overloaded */);
}
else
- transport_cleanup_half_open (session_get_transport_proto (ho),
- ho->connection_index);
+ {
+ /* Cleanup half-open session lookup table if need be */
+ if (ho->session_state != SESSION_STATE_TRANSPORT_CLOSING)
+ {
+ transport_connection_t *tc;
+ tc = transport_get_half_open (session_get_transport_proto (ho),
+ ho->connection_index);
+ if (tc && !(tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP))
+ session_lookup_del_half_open (tc);
+ }
+ transport_cleanup_half_open (session_get_transport_proto (ho),
+ ho->connection_index);
+ }
session_free (ho);
}
@@ -317,9 +328,10 @@ session_half_open_free (session_t *ho)
{
app_worker_t *app_wrk;
- ASSERT (vlib_get_thread_index () <= 1);
- app_wrk = app_worker_get (ho->app_wrk_index);
- app_worker_del_half_open (app_wrk, ho);
+ ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
+ app_wrk = app_worker_get_if_valid (ho->app_wrk_index);
+ if (app_wrk)
+ app_worker_del_half_open (app_wrk, ho);
session_free (ho);
}
@@ -333,10 +345,19 @@ session_half_open_free_rpc (void *args)
void
session_half_open_delete_notify (transport_connection_t *tc)
{
+ session_t *ho = ho_session_get (tc->s_index);
+
+ /* Cleanup half-open lookup table if need be */
+ if (ho->session_state != SESSION_STATE_TRANSPORT_CLOSING)
+ {
+ if (!(tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP))
+ session_lookup_del_half_open (tc);
+ }
+
/* Notification from ctrl thread accepted without rpc */
if (tc->thread_index == transport_cl_thread ())
{
- session_half_open_free (ho_session_get (tc->s_index));
+ session_half_open_free (ho);
}
else
{
@@ -351,6 +372,9 @@ session_half_open_migrate_notify (transport_connection_t *tc)
{
session_t *ho;
+ /* Support half-open migrations only for transports with no lookup */
+ ASSERT (tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP);
+
ho = ho_session_get (tc->s_index);
ho->flags |= SESSION_F_IS_MIGRATING;
ho->connection_index = ~0;
@@ -887,6 +911,7 @@ session_stream_connect_notify (transport_connection_t * tc,
session_lookup_del_half_open (tc);
ho = ho_session_get (tc->s_index);
+ session_set_state (ho, SESSION_STATE_TRANSPORT_CLOSING);
opaque = ho->opaque;
app_wrk = app_worker_get_if_valid (ho->app_wrk_index);
if (!app_wrk)
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index d0d8158ef00..977eda3bc65 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -489,6 +489,14 @@ tcp_session_reset (u32 conn_index, u32 thread_index)
{
tcp_connection_t *tc;
tc = tcp_connection_get (conn_index, thread_index);
+
+ /* For half-opens just cleanup */
+ if (tc->state == TCP_STATE_SYN_SENT)
+ {
+ tcp_connection_cleanup (tc);
+ return;
+ }
+
tcp_send_reset (tc);
tcp_connection_timers_reset (tc);
tcp_cong_recovery_off (tc);