8 * Web server script interface
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10 * Adam Dunkels <adam@sics.se>
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15 * Copyright (c) 2001-2006, Adam Dunkels.
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16 * All rights reserved.
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18 * Redistribution and use in source and binary forms, with or without
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19 * modification, are permitted provided that the following conditions
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21 * 1. Redistributions of source code must retain the above copyright
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22 * notice, this list of conditions and the following disclaimer.
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23 * 2. Redistributions in binary form must reproduce the above copyright
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24 * notice, this list of conditions and the following disclaimer in the
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25 * documentation and/or other materials provided with the distribution.
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26 * 3. The name of the author may not be used to endorse or promote
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27 * products derived from this software without specific prior
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28 * written permission.
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30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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31 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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32 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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33 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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34 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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36 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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38 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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39 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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40 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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42 * This file is part of the uIP TCP/IP stack.
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44 * $Id: httpd-cgi.c,v 1.2 2006/06/11 21:46:37 adam Exp $
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51 #include "httpd-cgi.h"
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52 #include "httpd-fs.h"
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57 HTTPD_CGI_CALL(file, "file-stats", file_stats);
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58 HTTPD_CGI_CALL(tcp, "tcp-connections", tcp_stats);
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59 HTTPD_CGI_CALL(net, "net-stats", net_stats);
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61 static const struct httpd_cgi_call *calls[] = { &file, &tcp, &net, NULL };
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63 /*---------------------------------------------------------------------------*/
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65 PT_THREAD(nullfunction(struct httpd_state *s, char *ptr))
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67 PSOCK_BEGIN(&s->sout);
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68 PSOCK_END(&s->sout);
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70 /*---------------------------------------------------------------------------*/
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72 httpd_cgi(char *name)
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74 const struct httpd_cgi_call **f;
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76 /* Find the matching name in the table, return the function. */
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77 for(f = calls; *f != NULL; ++f) {
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78 if(strncmp((*f)->name, name, strlen((*f)->name)) == 0) {
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79 return (*f)->function;
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82 return nullfunction;
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84 /*---------------------------------------------------------------------------*/
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85 static unsigned short
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86 generate_file_stats(void *arg)
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88 char *f = (char *)arg;
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89 return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE, "%5u", httpd_fs_count(f));
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91 /*---------------------------------------------------------------------------*/
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93 PT_THREAD(file_stats(struct httpd_state *s, char *ptr))
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95 PSOCK_BEGIN(&s->sout);
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97 PSOCK_GENERATOR_SEND(&s->sout, generate_file_stats, strchr(ptr, ' ') + 1);
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99 PSOCK_END(&s->sout);
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101 /*---------------------------------------------------------------------------*/
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102 static const char closed[] = /* "CLOSED",*/
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103 {0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0};
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104 static const char syn_rcvd[] = /* "SYN-RCVD",*/
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105 {0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56,
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107 static const char syn_sent[] = /* "SYN-SENT",*/
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108 {0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e,
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110 static const char established[] = /* "ESTABLISHED",*/
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111 {0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, 0x53, 0x48,
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113 static const char fin_wait_1[] = /* "FIN-WAIT-1",*/
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114 {0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
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115 0x54, 0x2d, 0x31, 0};
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116 static const char fin_wait_2[] = /* "FIN-WAIT-2",*/
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117 {0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
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118 0x54, 0x2d, 0x32, 0};
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119 static const char closing[] = /* "CLOSING",*/
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120 {0x43, 0x4c, 0x4f, 0x53, 0x49,
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122 static const char time_wait[] = /* "TIME-WAIT,"*/
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123 {0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41,
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125 static const char last_ack[] = /* "LAST-ACK"*/
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126 {0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43,
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129 static const char *states[] = {
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141 static unsigned short
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142 generate_tcp_stats(void *arg)
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144 struct uip_conn *conn;
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145 struct httpd_state *s = (struct httpd_state *)arg;
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147 conn = &uip_conns[s->count];
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148 return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,
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149 "<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",
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150 htons(conn->lport),
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151 htons(conn->ripaddr[0]) >> 8,
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152 htons(conn->ripaddr[0]) & 0xff,
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153 htons(conn->ripaddr[1]) >> 8,
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154 htons(conn->ripaddr[1]) & 0xff,
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155 htons(conn->rport),
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156 states[conn->tcpstateflags & UIP_TS_MASK],
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159 (uip_outstanding(conn))? '*':' ',
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160 (uip_stopped(conn))? '!':' ');
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162 /*---------------------------------------------------------------------------*/
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164 PT_THREAD(tcp_stats(struct httpd_state *s, char *ptr))
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167 PSOCK_BEGIN(&s->sout);
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169 for(s->count = 0; s->count < UIP_CONNS; ++s->count) {
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170 if((uip_conns[s->count].tcpstateflags & UIP_TS_MASK) != UIP_CLOSED) {
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171 PSOCK_GENERATOR_SEND(&s->sout, generate_tcp_stats, s);
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175 PSOCK_END(&s->sout);
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177 /*---------------------------------------------------------------------------*/
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178 static unsigned short
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179 generate_net_stats(void *arg)
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181 struct httpd_state *s = (struct httpd_state *)arg;
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182 return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,
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183 "%5u\n", ((uip_stats_t *)&uip_stat)[s->count]);
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187 PT_THREAD(net_stats(struct httpd_state *s, char *ptr))
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189 PSOCK_BEGIN(&s->sout);
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193 for(s->count = 0; s->count < sizeof(uip_stat) / sizeof(uip_stats_t);
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195 PSOCK_GENERATOR_SEND(&s->sout, generate_net_stats, s);
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198 #endif /* UIP_STATISTICS */
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200 PSOCK_END(&s->sout);
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202 /*---------------------------------------------------------------------------*/
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