386 lines
14 KiB
C
386 lines
14 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 1.16 2010/10/19 18:29:03 adamdunkels 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"
|
|
|
|
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 *states[] = {
|
|
closed,
|
|
syn_rcvd,
|
|
syn_sent,
|
|
established,
|
|
fin_wait_1,
|
|
fin_wait_2,
|
|
closing,
|
|
time_wait,
|
|
last_ack,
|
|
none,
|
|
running,
|
|
called};
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
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;
|
|
conn = &uip_conns[s->u.count];
|
|
|
|
#if UIP_CONF_IPV6
|
|
char buf[48];
|
|
httpd_sprint_ip6(conn->ripaddr, buf);
|
|
return snprintf((char *)uip_appdata, uip_mss(),
|
|
"<tr align=\"center\"><td>%d</td><td>%s:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n",
|
|
uip_htons(conn->lport),
|
|
buf,
|
|
uip_htons(conn->rport),
|
|
states[conn->tcpstateflags & UIP_TS_MASK],
|
|
conn->nrtx,
|
|
conn->timer,
|
|
(uip_outstanding(conn))? '*':' ',
|
|
(uip_stopped(conn))? '!':' ');
|
|
#else
|
|
return snprintf((char *)uip_appdata, uip_mss(),
|
|
"<tr align=\"center\"><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",
|
|
uip_htons(conn->lport),
|
|
conn->ripaddr.u8[0],
|
|
conn->ripaddr.u8[1],
|
|
conn->ripaddr.u8[2],
|
|
conn->ripaddr.u8[3],
|
|
uip_htons(conn->rport),
|
|
states[conn->tcpstateflags & UIP_TS_MASK],
|
|
conn->nrtx,
|
|
conn->timer,
|
|
(uip_outstanding(conn))? '*':' ',
|
|
(uip_stopped(conn))? '!':' ');
|
|
#endif /* UIP_CONF_IPV6 */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
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);
|
|
}
|
|
#if WEBSERVER_CONF_STATUSPAGE && UIP_CONF_IPV6
|
|
/* These cgi's are invoked by the status.shtml page in /apps/webserver/httpd-fs.
|
|
* To keep the webserver build small that 160 byte page is not present in the
|
|
* default httpd-fsdata.c file. Run the PERL script /../../tools/makefsdata from the
|
|
* /apps/webserver/ directory to include it. Delete status.shtml before running
|
|
* the script if you want to exclude it again.
|
|
* NB: Webserver builds on all platforms will use the current httpd-fsdata.c file. The added 160 bytes
|
|
* could overflow memory on the smaller platforms.
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#define HTTPD_STRING_ATTR
|
|
#define httpd_snprintf snprintf
|
|
#define httpd_cgi_sprint_ip6 httpd_sprint_ip6
|
|
|
|
static const char httpd_cgi_addrh[] HTTPD_STRING_ATTR = "<code>";
|
|
static const char httpd_cgi_addrf[] HTTPD_STRING_ATTR = "</code>[Room for %u more]";
|
|
static const char httpd_cgi_addrb[] HTTPD_STRING_ATTR = "<br>";
|
|
static const char httpd_cgi_addrn[] HTTPD_STRING_ATTR = "(none)<br>";
|
|
extern uip_ds6_nbr_t uip_ds6_nbr_cache[];
|
|
extern uip_ds6_route_t uip_ds6_routing_table[];
|
|
extern uip_ds6_netif_t uip_ds6_if;
|
|
|
|
static unsigned short
|
|
make_addresses(void *p)
|
|
{
|
|
uint8_t i,j=0;
|
|
uint16_t numprinted;
|
|
numprinted = httpd_snprintf((char *)uip_appdata, uip_mss(),httpd_cgi_addrh);
|
|
for (i=0; i<UIP_DS6_ADDR_NB;i++) {
|
|
if (uip_ds6_if.addr_list[i].isused) {
|
|
j++;
|
|
numprinted += httpd_cgi_sprint_ip6(uip_ds6_if.addr_list[i].ipaddr, uip_appdata + numprinted);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrb);
|
|
}
|
|
}
|
|
//if (j==0) numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrn);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrf, UIP_DS6_ADDR_NB-j);
|
|
return numprinted;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(addresses(struct httpd_state *s, char *ptr))
|
|
{
|
|
PSOCK_BEGIN(&s->sout);
|
|
|
|
PSOCK_GENERATOR_SEND(&s->sout, make_addresses, s->u.ptr);
|
|
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static unsigned short
|
|
make_neighbors(void *p)
|
|
{
|
|
uint8_t i,j=0;
|
|
uint16_t numprinted;
|
|
numprinted = httpd_snprintf((char *)uip_appdata, uip_mss(),httpd_cgi_addrh);
|
|
for (i=0; i<UIP_DS6_NBR_NB;i++) {
|
|
if (uip_ds6_nbr_cache[i].isused) {
|
|
j++;
|
|
numprinted += httpd_cgi_sprint_ip6(uip_ds6_nbr_cache[i].ipaddr, uip_appdata + numprinted);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrb);
|
|
}
|
|
}
|
|
//if (j==0) numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrn);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrf,UIP_DS6_NBR_NB-j);
|
|
return numprinted;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(neighbors(struct httpd_state *s, char *ptr))
|
|
{
|
|
PSOCK_BEGIN(&s->sout);
|
|
|
|
PSOCK_GENERATOR_SEND(&s->sout, make_neighbors, s->u.ptr);
|
|
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static unsigned short
|
|
make_routes(void *p)
|
|
{
|
|
static const char httpd_cgi_rtes1[] HTTPD_STRING_ATTR = "(%u (via ";
|
|
static const char httpd_cgi_rtes2[] HTTPD_STRING_ATTR = ") %us<br>";
|
|
static const char httpd_cgi_rtes3[] HTTPD_STRING_ATTR = ")<br>";
|
|
uint8_t i,j=0;
|
|
uint16_t numprinted;
|
|
numprinted = httpd_snprintf((char *)uip_appdata, uip_mss(),httpd_cgi_addrh);
|
|
for (i=0; i<UIP_DS6_ROUTE_NB;i++) {
|
|
if (uip_ds6_routing_table[i].isused) {
|
|
j++;
|
|
numprinted += httpd_cgi_sprint_ip6(uip_ds6_routing_table[i].ipaddr, uip_appdata + numprinted);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_rtes1, uip_ds6_routing_table[i].length);
|
|
numprinted += httpd_cgi_sprint_ip6(uip_ds6_routing_table[i].nexthop, uip_appdata + numprinted);
|
|
if(uip_ds6_routing_table[i].state.lifetime < 3600*24) {
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_rtes2, uip_ds6_routing_table[i].state.lifetime);
|
|
} else {
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_rtes3);
|
|
}
|
|
}
|
|
}
|
|
if (j==0) numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrn);
|
|
numprinted += httpd_snprintf((char *)uip_appdata+numprinted, uip_mss()-numprinted, httpd_cgi_addrf,UIP_DS6_ROUTE_NB-j);
|
|
return numprinted;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(routes(struct httpd_state *s, char *ptr))
|
|
{
|
|
PSOCK_BEGIN(&s->sout);
|
|
|
|
PSOCK_GENERATOR_SEND(&s->sout, make_routes, s->u.ptr);
|
|
|
|
PSOCK_END(&s->sout);
|
|
}
|
|
#endif /* WEBSERVER_CONF_STATUSPAGE */
|
|
/*---------------------------------------------------------------------------*/
|
|
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;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#if WEBSERVER_CONF_STATUSPAGE && UIP_CONF_IPV6
|
|
static const char adrs_name[] HTTPD_STRING_ATTR = "addresses";
|
|
static const char nbrs_name[] HTTPD_STRING_ATTR = "neighbors";
|
|
static const char rtes_name[] HTTPD_STRING_ATTR = "routes";
|
|
#endif
|
|
HTTPD_CGI_CALL(file, file_name, file_stats);
|
|
HTTPD_CGI_CALL(tcp, tcp_name, tcp_stats);
|
|
HTTPD_CGI_CALL(proc, proc_name, processes);
|
|
#if WEBSERVER_CONF_STATUSPAGE && UIP_CONF_IPV6
|
|
HTTPD_CGI_CALL(adrs, adrs_name, addresses);
|
|
HTTPD_CGI_CALL(nbrs, nbrs_name, neighbors);
|
|
HTTPD_CGI_CALL(rtes, rtes_name, routes);
|
|
#endif
|
|
|
|
void
|
|
httpd_cgi_init(void)
|
|
{
|
|
httpd_cgi_add(&file);
|
|
httpd_cgi_add(&tcp);
|
|
httpd_cgi_add(&proc);
|
|
#if WEBSERVER_CONF_STATUSPAGE && UIP_CONF_IPV6
|
|
httpd_cgi_add(&adrs);
|
|
httpd_cgi_add(&nbrs);
|
|
httpd_cgi_add(&rtes);
|
|
#endif
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|