/** * \addtogroup httpd * @{ */ /** * \file * Web server script interface * \author * Adam Dunkels * */ /* * 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 #include 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 }; /*---------------------------------------------------------------------------*/ static PT_THREAD(nullfunction(struct httpd_state *s, char *ptr)) { PSOCK_BEGIN(&s->sout); 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 snprintf((char *)uip_appdata, UIP_APPDATA_SIZE, "%5u", httpd_fs_count(f)); } /*---------------------------------------------------------------------------*/ static PT_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 short generate_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, "%d%u.%u.%u.%u:%u%s%u%u%c %c\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))? '!':' '); } /*---------------------------------------------------------------------------*/ static PT_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 short generate_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]); } static PT_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); } /*---------------------------------------------------------------------------*/ /** @} */