mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 01:29:33 +00:00
331 lines
10 KiB
C
331 lines
10 KiB
C
/*
|
|
* 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 1.1 2008/10/14 10:14:13 julienabeille 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 <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "contiki-net.h"
|
|
#include "httpd.h"
|
|
#include "httpd-cgi.h"
|
|
#include "httpd-fs.h"
|
|
|
|
#include "lib/petsciiconv.h"
|
|
|
|
#include "sensors.h"
|
|
|
|
static struct httpd_cgi_call *calls = 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 none[] = /* "NONE"*/
|
|
{0x4e, 0x4f, 0x4e, 0x45, 0};
|
|
static const char running[] = /* "RUNNING"*/
|
|
{0x52, 0x55, 0x4e, 0x4e, 0x49, 0x4e, 0x47,
|
|
0};
|
|
static const char called[] = /* "CALLED"*/
|
|
{0x43, 0x41, 0x4c, 0x4c, 0x45, 0x44, 0};
|
|
static const char file_name[] = /* "file-stats"*/
|
|
{0x66, 0x69, 0x6c, 0x65, 0x2d, 0x73, 0x74,
|
|
0x61, 0x74, 0x73, 0};
|
|
static const char tcp_name[] = /* "tcp-connections"*/
|
|
{0x74, 0x63, 0x70, 0x2d, 0x63, 0x6f, 0x6e,
|
|
0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e,
|
|
0x73, 0};
|
|
static const char proc_name[] = /* "processes"*/
|
|
{0x70, 0x72, 0x6f, 0x63, 0x65, 0x73, 0x73,
|
|
0x65, 0x73, 0};
|
|
|
|
static const char sensor_name[] = "sensors";
|
|
|
|
char sensor_temperature[12];
|
|
|
|
static const char *states[] = {
|
|
closed,
|
|
syn_rcvd,
|
|
syn_sent,
|
|
established,
|
|
fin_wait_1,
|
|
fin_wait_2,
|
|
closing,
|
|
time_wait,
|
|
last_ack,
|
|
none,
|
|
running,
|
|
called};
|
|
|
|
uint8_t sprint_ip6(uip_ip6addr_t addr, char * result);
|
|
|
|
|
|
void
|
|
web_set_temp(char *s)
|
|
{
|
|
strcpy(sensor_temperature, s);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
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 httpd_cgi_call *f;
|
|
|
|
/* Find the matching name in the table, return the function. */
|
|
for(f = calls; f != NULL; f = f->next) {
|
|
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_mss(), "%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, (void *) (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;
|
|
|
|
uint16_t numprinted;
|
|
|
|
conn = &uip_conns[s->u.count];
|
|
|
|
numprinted = snprintf((char *)uip_appdata, uip_mss(),
|
|
"<tr align=\"center\"><td>%d</td><td>",
|
|
htons(conn->lport));
|
|
|
|
numprinted += sprint_ip6(conn->ripaddr, uip_appdata + numprinted);
|
|
numprinted += snprintf((char *)uip_appdata + numprinted, uip_mss() - numprinted,
|
|
"-%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n",
|
|
htons(conn->rport),
|
|
states[conn->tcpstateflags & UIP_TS_MASK],
|
|
conn->nrtx,
|
|
conn->timer,
|
|
(uip_outstanding(conn))? '*':' ',
|
|
(uip_stopped(conn))? '!':' ');
|
|
|
|
return numprinted;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(tcp_stats(struct httpd_state *s, char *ptr))
|
|
{
|
|
|
|
PSOCK_BEGIN(&s->sout);
|
|
|
|
for(s->u.count = 0; s->u.count < UIP_CONNS; ++s->u.count) {
|
|
if((uip_conns[s->u.count].tcpstateflags & UIP_TS_MASK) != UIP_CLOSED) {
|
|
PSOCK_GENERATOR_SEND(&s->sout, make_tcp_stats, s);
|
|
}
|
|
}
|
|
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static unsigned short
|
|
make_processes(void *p)
|
|
{
|
|
char name[40];
|
|
|
|
strncpy(name, ((struct process *)p)->name, 40);
|
|
petsciiconv_toascii(name, 40);
|
|
|
|
return snprintf((char *)uip_appdata, uip_mss(),
|
|
"<tr align=\"center\"><td>%p</td><td>%s</td><td>%p</td><td>%s</td></tr>\r\n",
|
|
p, name,
|
|
*((char **)&(((struct process *)p)->thread)),
|
|
states[9 + ((struct process *)p)->state]);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(processes(struct httpd_state *s, char *ptr))
|
|
{
|
|
PSOCK_BEGIN(&s->sout);
|
|
for(s->u.ptr = PROCESS_LIST(); s->u.ptr != NULL; s->u.ptr = ((struct process *)s->u.ptr)->next) {
|
|
PSOCK_GENERATOR_SEND(&s->sout, make_processes, s->u.ptr);
|
|
}
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static unsigned short
|
|
generate_sensor_readings(void *arg)
|
|
{
|
|
return snprintf((char *)uip_appdata, uip_mss(), "<em>Temperature:</em> %s\n", sensor_temperature);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(sensor_readings(struct httpd_state *s, char *ptr))
|
|
{
|
|
PSOCK_BEGIN(&s->sout);
|
|
|
|
PSOCK_GENERATOR_SEND(&s->sout, generate_sensor_readings, s);
|
|
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
httpd_cgi_add(struct httpd_cgi_call *c)
|
|
{
|
|
struct httpd_cgi_call *l;
|
|
|
|
c->next = NULL;
|
|
if(calls == NULL) {
|
|
calls = c;
|
|
} else {
|
|
for(l = calls; l->next != NULL; l = l->next);
|
|
l->next = c;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
HTTPD_CGI_CALL(file, file_name, file_stats);
|
|
HTTPD_CGI_CALL(tcp, tcp_name, tcp_stats);
|
|
HTTPD_CGI_CALL(proc, proc_name, processes);
|
|
HTTPD_CGI_CALL(sensors, sensor_name, sensor_readings);
|
|
|
|
void
|
|
httpd_cgi_init(void)
|
|
{
|
|
httpd_cgi_add(&file);
|
|
httpd_cgi_add(&tcp);
|
|
httpd_cgi_add(&proc);
|
|
httpd_cgi_add(&sensors);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
uint8_t sprint_ip6(uip_ip6addr_t addr, char * result)
|
|
{
|
|
unsigned char zerocnt = 0;
|
|
unsigned char numprinted = 0;
|
|
char * starting = result;
|
|
|
|
unsigned char i = 0;
|
|
|
|
while (numprinted < 8)
|
|
{
|
|
//Address is zero, have we used our ability to
|
|
//replace a bunch with : yet?
|
|
if ((addr.u16[i] == 0) && (zerocnt == 0))
|
|
{
|
|
//How mant zeros?
|
|
zerocnt = 0;
|
|
while(addr.u16[zerocnt + i] == 0)
|
|
zerocnt++;
|
|
|
|
//just one, don't waste our zeros...
|
|
if (zerocnt == 1)
|
|
{
|
|
*result++ = '0';
|
|
numprinted++;
|
|
break;
|
|
}
|
|
|
|
//Cool - can replace a bunch of zeros
|
|
i += zerocnt;
|
|
numprinted += zerocnt;
|
|
}
|
|
//Normal address, just print it
|
|
else
|
|
{
|
|
result += sprintf(result, "%x", (unsigned int)(ntohs(addr.u16[i])));
|
|
i++;
|
|
numprinted++;
|
|
}
|
|
|
|
//Don't print : on last one
|
|
if (numprinted != 8)
|
|
*result++ = ':';
|
|
}
|
|
|
|
return (result - starting);
|
|
}
|
|
|