/** | |
* \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 ); | |
} | |
/** @} */ |