| /* |
| * Copyright (c) 2001, 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 1.10 2007/06/02 07:32:06 ryohji Exp $ |
| * |
| */ |
| |
| /* |
| * This file includes functions that are called by the web server |
| * scripts. The functions takes no argument, and the return value is |
| * interpreted as follows. A zero means that the function did not |
| * complete and should be invoked for the next packet as well. A |
| * non-zero value indicates that the function has completed and that |
| * the web server should move along to the next script line. |
| * |
| */ |
| |
| #include "uip.h" |
| #include "httpd.h" |
| #include "httpd-cgi.h" |
| #include "httpd-fs.h" |
| |
| #include "petsciiconv.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| static PT_THREAD(file_stats(struct httpd_state *s, char *arg)); |
| static PT_THREAD(tcp_stats(struct httpd_state *s, char *arg)); |
| static PT_THREAD(processes(struct httpd_state *s, char *arg)); |
| |
| struct cgifunction { |
| char *name; |
| httpd_cgifunction function; |
| }; |
| |
| static struct cgifunction cgitab[] = { |
| {"file-stats", file_stats}, |
| {"tcp-connections", tcp_stats}, |
| {"processes", processes}, |
| {NULL, NULL} |
| }; |
| |
| |
| 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 |
| PT_THREAD(nullfunction(struct httpd_state *s, char *ptr)) |
| { |
| PSOCK_BEGIN(&s->sout); |
| PSOCK_END(&s->sout); |
| } |
| /*---------------------------------------------------------------------------*/ |
| httpd_cgifunction |
| httpd_cgi(char *name) |
| { |
| struct cgifunction *f; |
| |
| /* Find the matching name in the table, return the function. */ |
| for(f = cgitab; f->name != 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); |
| |
| PSOCK_GENERATOR_SEND(&s->sout, generate_file_stats, strchr(ptr, ' ') + 1); |
| |
| PSOCK_END(&s->sout); |
| } |
| /*---------------------------------------------------------------------------*/ |
| static unsigned short |
| make_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[0]) >> 8, |
| htons(conn->ripaddr[0]) & 0xff, |
| htons(conn->ripaddr[1]) >> 8, |
| htons(conn->ripaddr[1]) & 0xff, |
| htons(conn->rport), |
| states[conn->tcpstateflags & 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 & TS_MASK) != CLOSED) { |
| PSOCK_GENERATOR_SEND(&s->sout, make_tcp_stats, s); |
| } |
| } |
| |
| PSOCK_END(&s->sout); |
| } |
| /*---------------------------------------------------------------------------*/ |
| static unsigned short |
| make_processes(void *s) |
| { |
| struct ek_proc *p = (struct ek_proc *)s; |
| char name[40]; |
| |
| strncpy(name, p->name, 40); |
| petsciiconv_toascii(name, 40); |
| |
| return sprintf((char *)uip_appdata, |
| "<tr align=\"center\"><td>%3d</td><td>%s</td><td>0x%02x</td><td>%p</td><td>%p</td><td>%p</td></tr>\r\n", |
| p->id, name, p->prio, |
| p->pollhandler, p->eventhandler, p->procstate); |
| } |
| /*---------------------------------------------------------------------------*/ |
| static |
| PT_THREAD(processes(struct httpd_state *s, char *ptr)) |
| { |
| static struct ek_proc *p; |
| |
| PSOCK_BEGIN(&s->sout); |
| |
| for(s->count = 0; s->count < EK_CONF_MAXPROCS; ++s->count) { |
| p = ek_process(s->count); |
| if(p != NULL) { |
| PSOCK_GENERATOR_SEND(&s->sout, make_processes, p); |
| } |
| } |
| |
| PSOCK_END(&s->sout); |
| } |
| /*---------------------------------------------------------------------------*/ |