/************************************************************************
* NAME: fapp_bench_tcp_rx
*
* DESCRIPTION: Start Benchmark TCP server.
************************************************************************/
static void fapp_bench_tcp_rx (fnet_shell_desc_t desc, fnet_address_family_t family)
{
struct sockaddr local_addr;
fnet_int32_t received;
fnet_char_t ip_str[FNET_IP_ADDR_STR_SIZE];
struct linger linger_option = {FNET_TRUE, /*l_onoff*/
4 /*l_linger*/
};
fnet_size_t bufsize_option = FAPP_BENCH_SOCKET_BUF_SIZE;
fnet_int32_t keepalive_option = 1;
fnet_int32_t keepcnt_option = FAPP_BENCH_TCP_KEEPCNT;
fnet_int32_t keepintvl_option = FAPP_BENCH_TCP_KEEPINTVL;
fnet_int32_t keepidle_option = FAPP_BENCH_TCP_KEEPIDLE;
struct sockaddr foreign_addr;
fnet_size_t addr_len;
fnet_bool_t exit_flag = FNET_FALSE;
fapp_bench.socket_foreign = FNET_ERR;
/* Create listen socket */
if((fapp_bench.socket_listen = fnet_socket(family, SOCK_STREAM, 0)) == FNET_ERR)
{
FNET_DEBUG("BENCH: Socket creation error.");
goto ERROR_1;
}
/* Bind socket.*/
fnet_memset_zero(&local_addr, sizeof(local_addr));
local_addr.sa_port = FAPP_BENCH_PORT;
local_addr.sa_family = family;
if(fnet_socket_bind(fapp_bench.socket_listen, &local_addr, sizeof(local_addr)) == FNET_ERR)
{
FNET_DEBUG("BENCH: Socket bind error.");
goto ERROR_2;
}
/* Set Socket options. */
if( /* Setup linger option. */
(fnet_socket_setopt (fapp_bench.socket_listen, SOL_SOCKET, SO_LINGER, (fnet_uint8_t *)&linger_option, sizeof(linger_option)) == FNET_ERR) ||
/* Set socket buffer size. */
(fnet_socket_setopt(fapp_bench.socket_listen, SOL_SOCKET, SO_RCVBUF, (fnet_uint8_t *) &bufsize_option, sizeof(bufsize_option))== FNET_ERR) ||
(fnet_socket_setopt(fapp_bench.socket_listen, SOL_SOCKET, SO_SNDBUF, (fnet_uint8_t *) &bufsize_option, sizeof(bufsize_option))== FNET_ERR) ||
/* Enable keepalive_option option. */
(fnet_socket_setopt (fapp_bench.socket_listen, SOL_SOCKET, SO_KEEPALIVE, (fnet_uint8_t *)&keepalive_option, sizeof(keepalive_option)) == FNET_ERR) ||
/* Keepalive probe retransmit limit. */
(fnet_socket_setopt (fapp_bench.socket_listen, IPPROTO_TCP, TCP_KEEPCNT, (fnet_uint8_t *)&keepcnt_option, sizeof(keepcnt_option)) == FNET_ERR) ||
/* Keepalive retransmit interval.*/
(fnet_socket_setopt (fapp_bench.socket_listen, IPPROTO_TCP, TCP_KEEPINTVL, (fnet_uint8_t *)&keepintvl_option, sizeof(keepintvl_option)) == FNET_ERR) ||
/* Time between keepalive probes.*/
(fnet_socket_setopt (fapp_bench.socket_listen, IPPROTO_TCP, TCP_KEEPIDLE, (fnet_uint8_t *)&keepidle_option, sizeof(keepidle_option)) == FNET_ERR)
)
{
FNET_DEBUG("BENCH: Socket setsockopt error.\n");
goto ERROR_2;
}
/* Listen. */
if(fnet_socket_listen(fapp_bench.socket_listen, 1) == FNET_ERR)
{
FNET_DEBUG("BENCH: Socket listen error.\n");
goto ERROR_2;
}
/* ------ Start test.----------- */
fnet_shell_println(desc, FAPP_DELIMITER_STR);
fnet_shell_println(desc, " TCP RX Test");
fnet_shell_println(desc, FAPP_DELIMITER_STR);
fapp_netif_addr_print(desc, family, fnet_netif_get_default(), FNET_FALSE);
fnet_shell_println(desc, FAPP_SHELL_INFO_FORMAT_D, "Local Port", FNET_NTOHS(FAPP_BENCH_PORT));
fnet_shell_println(desc, FAPP_TOCANCEL_STR);
fnet_shell_println(desc, FAPP_DELIMITER_STR);
while(exit_flag == FNET_FALSE)
{
fnet_shell_println(desc, "Waiting.");
fapp_bench.bytes = 0;
fapp_bench.remote_bytes = 0;
if(fapp_bench.socket_foreign != FNET_ERR)
{
fnet_socket_close(fapp_bench.socket_foreign);
fapp_bench.socket_foreign = FNET_ERR;
}
while((fapp_bench.socket_foreign == FNET_ERR) && (exit_flag == FNET_FALSE))
{
/*Accept*/
addr_len = sizeof(foreign_addr);
fapp_bench.socket_foreign = fnet_socket_accept(fapp_bench.socket_listen, &foreign_addr, &addr_len);
exit_flag = fnet_shell_ctrlc (desc);
if(fapp_bench.socket_foreign != FNET_ERR)
{
fnet_shell_println(desc,"Receiving from %s:%d", fnet_inet_ntop(foreign_addr.sa_family, (fnet_uint8_t*)(foreign_addr.sa_data), ip_str, sizeof(ip_str)), fnet_ntohs(foreign_addr.sa_port));
fapp_bench.first_time = fnet_timer_ticks();
while(1) /* Receiving data.*/
{
received = fnet_socket_recv(fapp_bench.socket_foreign, (fnet_uint8_t*)(&fapp_bench.buffer[0]), FAPP_BENCH_BUFFER_SIZE, 0);
if ((received == FNET_ERR) || exit_flag)
{
fapp_bench.last_time = fnet_timer_ticks();
/* Print benchmark results.*/
fapp_bench_print_results (desc);
break;
}
else
{
fapp_bench.bytes += received;
}
exit_flag = fnet_shell_ctrlc (desc); /* Check [Ctrl+c]*/
}
}
}
}
fnet_socket_close(fapp_bench.socket_foreign);
ERROR_2:
fnet_socket_close(fapp_bench.socket_listen);
ERROR_1:
fnet_shell_println(desc, FAPP_BENCH_COMPLETED_STR);
}
/************************************************************************
* DESCRIPTION: Telnet server state machine.
************************************************************************/
static void fnet_telnet_state_machine( void *telnet_if_p )
{
struct sockaddr foreign_addr;
fnet_int32_t res;
struct fnet_telnet_if *telnet = (struct fnet_telnet_if *)telnet_if_p;
fnet_uint8_t rx_data[1];
fnet_size_t len;
fnet_index_t i;
struct fnet_telnet_session_if *session;
for( i = 0u; i < FNET_CFG_TELNET_SESSION_MAX; i++)
{
session = &telnet->session[i];
telnet->session_active = session;
do
{
switch(session->state)
{
/*---- LISTENING ------------------------------------------------*/
case FNET_TELNET_STATE_LISTENING:
len = sizeof(foreign_addr);
session->socket_foreign = fnet_socket_accept(telnet->socket_listen, (struct sockaddr *) &foreign_addr, &len);
if(session->socket_foreign != FNET_ERR)
{
#if FNET_CFG_DEBUG_TELNET && FNET_CFG_DEBUG
{
fnet_uint8_t ip_str[FNET_IP_ADDR_STR_SIZE];
fnet_inet_ntop(foreign_addr.sa_family, foreign_addr.sa_data, ip_str, sizeof(ip_str));
FNET_DEBUG_TELNET("\nTELNET: New connection: %s; Port: %d.", ip_str, fnet_ntohs(foreign_addr.sa_port));
}
#endif
/* Init Shell. */
session->shell_descriptor = fnet_shell_init(&session->shell_params);
if(session->shell_descriptor)
{
fnet_socket_listen(telnet->socket_listen, --telnet->backlog); /* Ignor other connections.*/
/* Reset TX timeout. */
session->state = FNET_TELNET_STATE_RECEIVING; /* => WAITING data */
}
else
{
FNET_DEBUG_TELNET("TELNET: Shell Service registration error.");
session->state = FNET_TELNET_STATE_CLOSING; /*=> CLOSING */
}
}
break;
/*---- NORMAL -----------------------------------------------*/
case FNET_TELNET_STATE_RECEIVING:
if(rx_buffer_free_space(session) > 0u)
{
res = fnet_socket_recv(session->socket_foreign, rx_data, 1u, 0u);
if(res == 1)
{
if(rx_data[0] == FNET_TELNET_CMD_IAC )
{
session->state = FNET_TELNET_STATE_IAC; /*=> Handle IAC */
}
else
{
rx_buffer_write (session, rx_data[0]);
}
}
else if (res == FNET_ERR)
{
session->state = FNET_TELNET_STATE_CLOSING; /*=> CLOSING */
}
else
{}
}
break;
/*---- IAC -----------------------------------------------*/
case FNET_TELNET_STATE_IAC:
FNET_DEBUG_TELNET("TELNET: STATE_IAC");
if((res = fnet_socket_recv(session->socket_foreign, rx_data, 1u, 0u) ) != FNET_ERR)
{
if(res)
{
switch(rx_data[0])
{
case FNET_TELNET_CMD_WILL:
session->state = FNET_TELNET_STATE_DONT;
break;
case FNET_TELNET_CMD_DO:
session->state = FNET_TELNET_STATE_WONT;
break;
case FNET_TELNET_CMD_WONT:
case FNET_TELNET_CMD_DONT:
session->state = FNET_TELNET_STATE_SKIP ;
break;
case FNET_TELNET_CMD_IAC:
/*
the IAC need be doubled to be sent as data, and
the other 255 codes may be passed transparently.
*/
rx_buffer_write (session, rx_data[0]);
session->state = FNET_TELNET_STATE_RECEIVING;
break;
default:
session->state = FNET_TELNET_STATE_RECEIVING; /*=> Ignore commands */
break;
}
}
}
else
{
session->state = FNET_TELNET_STATE_CLOSING; /*=> CLOSING */
}
break;
/*---- DONT & WONT -----------------------------------------------*/
case FNET_TELNET_STATE_DONT:
case FNET_TELNET_STATE_WONT:
{
fnet_uint8_t command;
if(session->state == FNET_TELNET_STATE_DONT)
{
FNET_DEBUG_TELNET("TELNET: STATE_DONT");
command = FNET_TELNET_CMD_DONT;
}
else
{
FNET_DEBUG_TELNET("TELNET: STATE_WONT");
command = FNET_TELNET_CMD_WONT;
}
if(tx_buffer_free_space(session) >= 3u)
{
res = fnet_socket_recv(session->socket_foreign, rx_data, 1u, 0u);
if(res == 1)
{
/* Send command. */
fnet_telnet_send_cmd(session, command, rx_data[0]);
session->state = FNET_TELNET_STATE_RECEIVING;
}
else if (res == FNET_ERR)
{
session->state = FNET_TELNET_STATE_CLOSING; /*=> CLOSING */
}
else
{}
}
}
break;
/*---- SKIP -----------------------------------------------*/
case FNET_TELNET_STATE_SKIP:
FNET_DEBUG_TELNET("TELNET: STATE_SKIP");
res = fnet_socket_recv(session->socket_foreign, rx_data, 1u, 0u);
if(res == 1)
{
session->state = FNET_TELNET_STATE_RECEIVING;
}
else if (res == FNET_ERR)
{
session->state = FNET_TELNET_STATE_CLOSING; /*=> CLOSING */
}
else
{}
break;
/*---- CLOSING --------------------------------------------*/
case FNET_TELNET_STATE_CLOSING:
FNET_DEBUG_TELNET("TELNET: STATE_CLOSING");
if(session->shell_descriptor)
{
fnet_shell_release(session->shell_descriptor);
session->shell_descriptor = 0;
}
session->rx_buffer_head = session->rx_buffer;
session->rx_buffer_tail = session->rx_buffer;
fnet_socket_close(session->socket_foreign);
session->socket_foreign = FNET_ERR;
fnet_socket_listen(telnet->socket_listen, ++telnet->backlog); /* Allow connection.*/
session->state = FNET_TELNET_STATE_LISTENING; /*=> LISTENING */
break;
default:
break;
}
}
while(session->state == FNET_TELNET_STATE_CLOSING);
}
}
