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/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <signal.h>
#include <hs_apps/sapi/vpp_echo_common.h>
static void
tcp_echo_cleanup_cb (echo_session_t * s, u8 parent_died)
{
echo_main_t *em = &echo_main;
echo_session_t *ls;
ASSERT (s->session_state < ECHO_SESSION_STATE_CLOSED);
if (parent_died)
clib_atomic_fetch_add (&em->stats.clean_count.s, 1);
else if (s->listener_index != SESSION_INVALID_INDEX)
{
ls = pool_elt_at_index (em->sessions, s->listener_index);
clib_atomic_sub_fetch (&ls->accepted_session_count, 1);
}
clib_atomic_sub_fetch (&em->n_clients_connected, 1);
s->session_state = ECHO_SESSION_STATE_CLOSED;
if (!em->n_clients_connected)
em->state = STATE_DATA_DONE;
}
static void
tcp_echo_connected_cb (session_connected_bundled_msg_t * mp,
u32 session_index, u8 is_failed)
{
static u32 client_index = 0;
echo_main_t *em = &echo_main;
echo_session_t *session = pool_elt_at_index (em->sessions, session_index);
if (is_failed)
{
ECHO_FAIL (ECHO_FAIL_TCP_BAPI_CONNECT,
"Bapi connect errored on session %u", session_index);
return; /* Dont handle bapi connect errors for now */
}
ECHO_LOG (2, "Connected session 0x%lx -> URI",
((session_connected_msg_t *) mp)->handle);
session->session_type = ECHO_SESSION_TYPE_STREAM;
session->accepted_session_count = 0;
clib_atomic_fetch_add (&em->n_clients_connected, 1);
session->bytes_to_send = em->bytes_to_send;
session->bytes_to_receive = em->bytes_to_receive;
session->session_state = ECHO_SESSION_STATE_READY;
em->data_thread_args[client_index++] = session->session_index;
if (em->n_clients_connected == em->n_clients && em->state < STATE_READY)
{
echo_notify_event (em, ECHO_EVT_LAST_SCONNECTED);
em->state = STATE_READY;
}
}
static void
tcp_echo_accepted_cb (session_accepted_msg_t * mp, echo_session_t * session)
{
static u32 client_index = 0;
echo_main_t *em = &echo_main;
echo_session_t *ls;
echo_notify_event (em, ECHO_EVT_FIRST_QCONNECT);
ls = pool_elt_at_index (em->sessions, session->listener_index);
session->session_type = ECHO_SESSION_TYPE_STREAM;
echo_notify_event (em, ECHO_EVT_FIRST_SCONNECT);
clib_atomic_fetch_add (&ls->accepted_session_count, 1);
clib_atomic_fetch_add (&em->n_clients_connected, 1);
session->bytes_to_send = em->bytes_to_send;
session->bytes_to_receive = em->bytes_to_receive;
em->data_thread_args[client_index++] = session->session_index;
session->session_state = ECHO_SESSION_STATE_READY;
if (em->n_clients_connected == em->n_clients && em->state < STATE_READY)
{
echo_notify_event (em, ECHO_EVT_LAST_SCONNECTED);
em->state = STATE_READY;
}
}
static void
tcp_echo_sent_disconnect_cb (echo_session_t * s)
{
s->session_state = ECHO_SESSION_STATE_CLOSING;
}
static void
tcp_echo_disconnected_cb (session_disconnected_msg_t * mp, echo_session_t * s)
{
echo_main_t *em = &echo_main;
echo_session_print_stats (em, s);
if (s->bytes_to_receive || s->bytes_to_send)
s->session_state = ECHO_SESSION_STATE_AWAIT_DATA;
else
s->session_state = ECHO_SESSION_STATE_CLOSING;
clib_atomic_fetch_add (&em->stats.close_count.s, 1);
}
static void
tcp_echo_reset_cb (session_reset_msg_t * mp, echo_session_t * s)
{
echo_main_t *em = &echo_main;
clib_atomic_fetch_add (&em->stats.reset_count.s, 1);
s->session_state = ECHO_SESSION_STATE_CLOSING;
}
echo_proto_cb_vft_t echo_tcp_proto_cb_vft = {
.disconnected_cb = tcp_echo_disconnected_cb,
.connected_cb = tcp_echo_connected_cb,
.accepted_cb = tcp_echo_accepted_cb,
.reset_cb = tcp_echo_reset_cb,
.sent_disconnect_cb = tcp_echo_sent_disconnect_cb,
.cleanup_cb = tcp_echo_cleanup_cb,
};
echo_proto_cb_vft_t echo_tls_proto_cb_vft = {
.disconnected_cb = tcp_echo_disconnected_cb,
.connected_cb = tcp_echo_connected_cb,
.accepted_cb = tcp_echo_accepted_cb,
.reset_cb = tcp_echo_reset_cb,
.sent_disconnect_cb = tcp_echo_sent_disconnect_cb,
.cleanup_cb = tcp_echo_cleanup_cb,
};
ECHO_REGISTER_PROTO (TRANSPORT_PROTO_TCP, echo_tcp_proto_cb_vft);
ECHO_REGISTER_PROTO (TRANSPORT_PROTO_TLS, echo_tls_proto_cb_vft);
ECHO_REGISTER_PROTO (TRANSPORT_PROTO_SCTP, echo_tcp_proto_cb_vft);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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