/** * \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 "uip.h"#include "psock.h"#include "httpd.h"#include "httpd-cgi.h"#include "httpd-fs.h"#include <stdio.h>#include <string.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);static const struct httpd_cgi_call *calls[] = { &file, &tcp, &net, NULL };/*---------------------------------------------------------------------------*/staticPT_THREAD(nullfunction(struct httpd_state *s, char *ptr)){  PSOCK_BEGIN(&s->sout);  PSOCK_END(&s->sout);}/*---------------------------------------------------------------------------*/httpd_cgifunctionhttpd_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 shortgenerate_file_stats(void *arg){  char *f = (char *)arg;  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE, "%5u", httpd_fs_count(f));}/*---------------------------------------------------------------------------*/staticPT_THREAD(file_stats(struct httpd_state *s, char *ptr)){  PSOCK_BEGIN(&s->sout);  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 shortgenerate_tcp_stats(void *arg){  struct uip_conn *conn;  struct httpd_state *s = (struct httpd_state *)arg;      conn = &uip_conns[s->count];  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,		 "<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[0]) >> 8,		 htons(conn->ripaddr[0]) & 0xff,		 htons(conn->ripaddr[1]) >> 8,		 htons(conn->ripaddr[1]) & 0xff,		 htons(conn->rport),		 states[conn->tcpstateflags & UIP_TS_MASK],		 conn->nrtx,		 conn->timer,		 (uip_outstanding(conn))? '*':' ',		 (uip_stopped(conn))? '!':' ');}/*---------------------------------------------------------------------------*/staticPT_THREAD(tcp_stats(struct httpd_state *s, char *ptr)){    PSOCK_BEGIN(&s->sout);  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 shortgenerate_net_stats(void *arg){  struct httpd_state *s = (struct httpd_state *)arg;  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,		  "%5u\n", ((uip_stats_t *)&uip_stat)[s->count]);}staticPT_THREAD(net_stats(struct httpd_state *s, char *ptr)){  PSOCK_BEGIN(&s->sout);#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);}/*---------------------------------------------------------------------------*//** @} */