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authorFlorin Coras <fcoras@cisco.com>2017-07-18 05:38:03 -0400
committerFlorin Coras <fcoras@cisco.com>2017-07-21 19:20:09 -0400
commit6534b7aa13bc5bed15ed87f47bb766405963e9e8 (patch)
tree999524eff2a5c811ef61e65354e6018c8ae3de33 /src/vnet/session/session.c
parent161c59c75c667ce7a3c1d6173723831dc30e994c (diff)
Improvements to tcp rx path and debugging
- Increment rcv_nxt for fin packets - Call tcp_segment_rcv only if buffer has data - Parse rcv opts before deleting half-open connection - Fix initial rcv_wnd - Improved event logging Change-Id: I9b83c04f432c4cec832c480b03e534deff02c3b1 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session.c')
-rw-r--r--src/vnet/session/session.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index 2c2a27c1af9..09bc00e745a 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -32,6 +32,22 @@ static transport_proto_vft_t *tp_vfts;
session_manager_main_t session_manager_main;
+transport_connection_t *
+stream_session_lookup_half_open (transport_connection_t * tc)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ session_kv4_t kv4;
+ int rv;
+ if (tc->is_ip4)
+ {
+ make_v4_ss_kv_from_tc (&kv4, tc);
+ rv = clib_bihash_search_inline_16_8 (&smm->v4_half_open_hash, &kv4);
+ if (rv == 0)
+ return tp_vfts[tc->proto].get_half_open (kv4.value & 0xFFFFFFFFULL);
+ }
+ return 0;
+}
+
/*
* Session lookup key; (src-ip, dst-ip, src-port, dst-port, session-type)
* Value: (owner thread index << 32 | session_index);
@@ -501,7 +517,7 @@ stream_session_create_i (segment_manager_t * sm, transport_connection_t * tc,
tc->s_index = s->session_index;
/* Add to the main lookup table */
- value = (((u64) thread_index) << 32) | (u64) s->session_index;
+ value = stream_session_handle (s);
stream_session_table_add_for_tc (tc, value);
*ret_s = s;
@@ -817,8 +833,18 @@ stream_session_connect_notify (transport_connection_t * tc, u8 sst,
}
/* Notify client */
- app->cb_fns.session_connected_callback (app->index, api_context, new_s,
- is_fail);
+ if (app->cb_fns.session_connected_callback (app->index, api_context, new_s,
+ is_fail))
+ {
+ clib_warning ("failed to notify app");
+ if (!is_fail)
+ stream_session_disconnect (new_s);
+ }
+ else
+ {
+ if (!is_fail)
+ new_s->session_state = SESSION_STATE_READY;
+ }
/* Cleanup session lookup */
stream_session_half_open_table_del (smm, sst, tc);
@@ -862,15 +888,19 @@ void
stream_session_delete (stream_session_t * s)
{
session_manager_main_t *smm = vnet_get_session_manager_main ();
+ int rv;
/* Delete from the main lookup table. */
- stream_session_table_del (smm, s);
+ if ((rv = stream_session_table_del (smm, s)))
+ clib_warning ("hash delete error, rv %d", rv);
/* Cleanup fifo segments */
segment_manager_dealloc_fifos (s->svm_segment_index, s->server_rx_fifo,
s->server_tx_fifo);
pool_put (smm->sessions[s->thread_index], s);
+ if (CLIB_DEBUG)
+ memset (s, 0xFA, sizeof (*s));
}
/**