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/*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/param.h>
#include <rtems/bsd/sys/queue.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/domain.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/route.h>
#include <netinet/in.h>
#include <arpa/inet.h>
/*
* We'll use the application versions of realloc and free.
*/
#undef free
#undef malloc
#include <stdlib.h>
/*
* Information per route
*/
struct rinfo {
struct sockaddr dst;
union {
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_dl sdl;
} un;
unsigned long pksent;
unsigned long expire;
int flags;
char ifname[16];
short ifunit;
short refcnt;
};
/*
* Information per display
*/
struct dinfo {
int capacity;
int count;
struct rinfo *routes;
};
/*
* Copy address
*/
static void
copyAddress (void *to, void *from, int tolen)
{
int ncopy;
struct sockaddr dummy;
if (from == NULL) {
/*
* Create a fake address of unspecified type
*/
from = &dummy;
dummy.sa_len = 4;
dummy.sa_family = AF_UNSPEC;
}
ncopy = ((struct sockaddr *)from)->sa_len;
if (ncopy > tolen)
ncopy = tolen;
memcpy (to, from, ncopy);
}
/*
* Package everything up before printing it.
* We don't want to block all network operations till
* the printing completes!
*/
static int
show_inet_route (
struct radix_node *rn,
void *vw )
{
struct rtentry *rt = (struct rtentry *)rn;
struct ifnet *ifp;
struct dinfo *dp = (struct dinfo *)vw;
struct rinfo *r;
/*
* Get a pointer to a new route info structure
*/
if (dp->count >= dp->capacity) {
r = realloc (dp->routes, (sizeof *r) * (dp->capacity + 20));
if (r == 0)
return ENOMEM;
dp->capacity += 20;
dp->routes = r;
}
r = dp->routes + dp->count++;
/*
* Fill in the route info structure
*/
copyAddress (&r->dst, rt_key(rt), sizeof r->dst);
if (rt->rt_flags & (RTF_GATEWAY | RTF_HOST)) {
copyAddress (&r->un, rt->rt_gateway, sizeof r->un);
}
else {
/*
* Create a fake address to hold the mask
*/
struct sockaddr_in dummy;
dummy.sin_family = AF_INET;
dummy.sin_len = sizeof dummy;
dummy.sin_addr = ((struct sockaddr_in *)rt_mask(rt))->sin_addr;
copyAddress (&r->un, &dummy, sizeof r->un);
}
r->flags = rt->rt_flags;
r->refcnt = rt->rt_refcnt;
r->pksent = rt->rt_rmx.rmx_pksent;
r->expire = rt->rt_rmx.rmx_expire;
ifp = rt->rt_ifp;
strncpy (r->ifname, (ifp->if_name ? ifp->if_name : ""), sizeof r->ifname);
r->ifunit = ifp->if_unit;
return 0;
}
/*
* Convert link address to ASCII
*/
static char *
link_ascii (struct sockaddr_dl *sdl, char *buf, int bufsize)
{
char *cp;
int i;
int first = 1;
int nleft = sdl->sdl_alen;
char *ap = LLADDR (sdl);
static const char hextab[16] = "0123456789ABCDEF";
cp = buf;
while (nleft && (bufsize > 4)) {
if (first) {
first = 0;
}
else {
*cp++ = ':';
bufsize--;
}
i = *ap++;
*cp++ = hextab[(i >> 4) & 0xf];
*cp++ = hextab[i & 0xf];
nleft--;
bufsize -= 2;
}
*cp = '\0';
return buf;
}
void
rtems_bsdnet_show_inet_routes (void)
{
struct radix_node_head *rnh;
struct dinfo d;
struct rinfo *r;
int i, error;
/*
* For now we'll handle only AF_INET
*/
rnh = rt_tables[AF_INET];
if (!rnh)
return;
d.count = d.capacity = 0;
d.routes = NULL;
rtems_bsdnet_semaphore_obtain ();
error = rnh->rnh_walktree(rnh, show_inet_route, &d);
rtems_bsdnet_semaphore_release ();
if (error) {
printf ("Can't get route info: %s\n", strerror (error));
return;
}
if (d.count == 0) {
printf ("No routes!\n");
return;
}
printf ("Destination Gateway/Mask/Hw Flags Refs Use Expire Interface\n");
for (i = 0, r = d.routes ; i < d.count ; i++, r++) {
char buf[30];
char *cp, *fc, flagbuf[10];
const char *addr;
unsigned long flagbit;
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)&r->dst;
if (sin->sin_addr.s_addr == INADDR_ANY)
addr = "default";
else
addr = inet_ntop (AF_INET, &sin->sin_addr, buf, sizeof buf);
printf ("%-16s", addr);
switch (r->un.sa.sa_family) {
case AF_INET:
addr = inet_ntop (AF_INET, &r->un.sin.sin_addr, buf, sizeof buf);
break;
case AF_LINK:
addr = link_ascii (&r->un.sdl, buf, sizeof buf);
break;
default:
addr = "";
break;
}
printf ("%-19s", addr);
fc = "UGHRDM XLS";
for (flagbit = 0x1, cp = flagbuf ; *fc ; flagbit <<= 1, fc++) {
if ((r->flags & flagbit) && (*fc != ' '))
*cp++ = *fc;
}
*cp = '\0';
printf ("%-10s%3d%9ld%7ld %.*s%d\n", flagbuf,
r->refcnt, r->pksent,
r->expire,
(int)sizeof r->ifname, r->ifname,
r->ifunit);
}
free (d.routes);
}
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