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/**
* \addtogroup httpd
* @{
*/
/**
* \file
* Web server script interface
* \author
* Adam Dunkels <adam@sics.se>
*
*/
/*
* Copyright (c) 2001-2006, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: httpd-cgi.c,v 1.2 2006/06/11 21:46:37 adam Exp $
*
*/
#include "net/uip.h"
#include "net/psock.h"
#include "apps/httpd/httpd.h"
#include "apps/httpd/httpd-cgi.h"
#include "apps/httpd/httpd-fs.h"
#include <stdio.h>
#include <string.h>
#include "FreeRTOS.h"
#include "task.h"
HTTPD_CGI_CALL( file, "file-stats", file_stats );
HTTPD_CGI_CALL( tcp, "tcp-connections", tcp_stats );
HTTPD_CGI_CALL( net, "net-stats", net_stats );
HTTPD_CGI_CALL( rtos, "rtos-stats", rtos_stats );
HTTPD_CGI_CALL( run, "run-time", run_time );
HTTPD_CGI_CALL( io, "led-io", led_io );
static const struct httpd_cgi_call *calls[] = { &file, &tcp, &net, &rtos, &run, &io, NULL };
/*---------------------------------------------------------------------------*/
static PT_THREAD( nullfunction ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
httpd_cgifunction httpd_cgi( char *name )
{
const struct httpd_cgi_call **f;
/* Find the matching name in the table, return the function. */
for( f = calls; *f != NULL; ++f )
{
if( strncmp((*f)->name, name, strlen((*f)->name)) == 0 )
{
return( *f )->function;
}
}
return nullfunction;
}
/*---------------------------------------------------------------------------*/
static unsigned short generate_file_stats( void *arg )
{
char *f = ( char * ) arg;
return sprintf( ( char * ) uip_appdata, "%5u", httpd_fs_count(f) );
}
/*---------------------------------------------------------------------------*/
static PT_THREAD( file_stats ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) PT_YIELD_FLAG;
PSOCK_GENERATOR_SEND( &s->sout, generate_file_stats, strchr(ptr, ' ') + 1 );
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
static const char closed[] = /* "CLOSED",*/ { 0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0 };
static const char syn_rcvd[] = /* "SYN-RCVD",*/ { 0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56, 0x44, 0 };
static const char syn_sent[] = /* "SYN-SENT",*/ { 0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e, 0x54, 0 };
static const char established[] = /* "ESTABLISHED",*/ { 0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, 0x53, 0x48, 0x45, 0x44, 0 };
static const char fin_wait_1[] = /* "FIN-WAIT-1",*/ { 0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, 0x54, 0x2d, 0x31, 0 };
static const char fin_wait_2[] = /* "FIN-WAIT-2",*/ { 0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, 0x54, 0x2d, 0x32, 0 };
static const char closing[] = /* "CLOSING",*/ { 0x43, 0x4c, 0x4f, 0x53, 0x49, 0x4e, 0x47, 0 };
static const char time_wait[] = /* "TIME-WAIT,"*/ { 0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41, 0x49, 0x54, 0 };
static const char last_ack[] = /* "LAST-ACK"*/ { 0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43, 0x4b, 0 };
static const char *states[] = { closed, syn_rcvd, syn_sent, established, fin_wait_1, fin_wait_2, closing, time_wait, last_ack };
static unsigned short generate_tcp_stats( void *arg )
{
struct uip_conn *conn;
struct httpd_state *s = ( struct httpd_state * ) arg;
conn = &uip_conns[s->count];
return sprintf( ( char * ) uip_appdata,
"<tr><td>%d</td><td>%u.%u.%u.%u:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n", htons(conn->lport),
htons(conn->ripaddr.u16[0]) >> 8, htons(conn->ripaddr.u16[0]) & 0xff, htons(conn->ripaddr.u16[1]) >> 8,
htons(conn->ripaddr.u16[1]) & 0xff, htons(conn->rport), states[conn->tcpstateflags & UIP_TS_MASK], conn->nrtx, conn->timer,
(uip_outstanding(conn)) ? '*' : ' ', (uip_stopped(conn)) ? '!' : ' ' );
}
/*---------------------------------------------------------------------------*/
static PT_THREAD( tcp_stats ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
for( s->count = 0; s->count < UIP_CONNS; ++s->count )
{
if( (uip_conns[s->count].tcpstateflags & UIP_TS_MASK) != UIP_CLOSED )
{
PSOCK_GENERATOR_SEND( &s->sout, generate_tcp_stats, s );
}
}
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
static unsigned short generate_net_stats( void *arg )
{
struct httpd_state *s = ( struct httpd_state * ) arg;
return sprintf( ( char * ) uip_appdata, "%5u\n", (( uip_stats_t * ) &uip_stat)[s->count] );
}
static PT_THREAD( net_stats ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
#if UIP_STATISTICS
for( s->count = 0; s->count < sizeof(uip_stat) / sizeof(uip_stats_t); ++s->count )
{
PSOCK_GENERATOR_SEND( &s->sout, generate_net_stats, s );
}
#endif /* UIP_STATISTICS */
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
extern void vTaskList( char *pcWriteBuffer );
extern char *pcGetTaskStatusMessage( void );
static char cCountBuf[128];
long lRefreshCount = 0;
static unsigned short generate_rtos_stats( void *arg )
{
( void ) arg;
lRefreshCount++;
sprintf( cCountBuf, "<p><br>Refresh count = %d<p><br>%s", ( int ) lRefreshCount, pcGetTaskStatusMessage() );
vTaskList( ( char * ) uip_appdata );
strcat( uip_appdata, cCountBuf );
return strlen( uip_appdata );
}
/*---------------------------------------------------------------------------*/
static PT_THREAD( rtos_stats ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
PSOCK_GENERATOR_SEND( &s->sout, generate_rtos_stats, NULL );
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
char *pcStatus;
unsigned long ulString;
static unsigned short generate_io_state( void *arg )
{
extern long lParTestGetLEDState( unsigned long ulLED );
( void ) arg;
/* Are the dynamically setable LEDs currently on or off? */
if( lParTestGetLEDState( 3 ) )
{
pcStatus = "checked";
}
else
{
pcStatus = "";
}
sprintf( uip_appdata, "<input type=\"checkbox\" name=\"LED0\" value=\"1\" %s>LED<p><p>", pcStatus );
return strlen( uip_appdata );
}
/*---------------------------------------------------------------------------*/
extern void vTaskGetRunTimeStats( char *pcWriteBuffer );
extern unsigned short usMaxJitter;
static char cJitterBuffer[ 200 ];
static unsigned short generate_runtime_stats( void *arg )
{
( void ) arg;
lRefreshCount++;
sprintf( cCountBuf, "<p><br>Refresh count = %d", ( int ) lRefreshCount );
#ifdef INCLUDE_HIGH_FREQUENCY_TIMER_TEST
{
sprintf( cJitterBuffer, "<p><br>Max high frequency timer jitter = %d peripheral clock periods.<p><br>", ( int ) usMaxJitter );
vTaskGetRunTimeStats( ( char * ) uip_appdata );
strcat( uip_appdata, cJitterBuffer );
}
#else
{
( void ) cJitterBuffer;
strcpy( uip_appdata, "<p>Run time stats are only available in the debug_with_optimisation build configuration.<p>" );
}
#endif
strcat( uip_appdata, cCountBuf );
return strlen( uip_appdata );
}
/*---------------------------------------------------------------------------*/
static PT_THREAD( run_time ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
PSOCK_GENERATOR_SEND( &s->sout, generate_runtime_stats, NULL );
PSOCK_END( &s->sout );
}
/*---------------------------------------------------------------------------*/
static PT_THREAD( led_io ( struct httpd_state *s, char *ptr ) )
{
PSOCK_BEGIN( &s->sout );
( void ) ptr;
( void ) PT_YIELD_FLAG;
PSOCK_GENERATOR_SEND( &s->sout, generate_io_state, NULL );
PSOCK_END( &s->sout );
}
/** @} */
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