#include <sys/param.h>
#include <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/route.h>
#include <netinet/in.h>
/*
* We'll use the application versions of malloc and free.
*/
#undef malloc
#undef free
/*
* Information per route
*/
struct rinfo {
struct in_addr dst;
struct in_addr gw_mask;
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;
};
/*
* Package everything up before printing it.
* We don't want to block all network operations till
* the printing completes!
*/
static int
show_inet_route (rn, vw)
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
*/
r->dst = ((struct sockaddr_in *)rt_key(rt))->sin_addr;
if (rt->rt_flags & RTF_GATEWAY)
r->gw_mask = ((struct sockaddr_in *)rt->rt_gateway)->sin_addr;
else if (!(rt->rt_flags & RTF_HOST))
r->gw_mask = ((struct sockaddr_in *)rt_mask(rt))->sin_addr;
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, sizeof r->ifname);
r->ifunit = ifp->if_unit;
return 0;
}
/*
* Reentrant version of inet_ntoa
*/
char *
inet_ntoa_r (struct in_addr ina, char *buf)
{
unsigned char *ucp = (unsigned char *)&ina;
sprintf (buf, "%d.%d.%d.%d",
ucp[0] & 0xff,
ucp[1] & 0xff,
ucp[2] & 0xff,
ucp[3] & 0xff);
return buf;
}
void
rtems_bsdnet_show_inet_routes (void)
{
struct radix_node_head *rnh;
struct dinfo d;
struct rinfo *r;
int i, error;
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 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];
unsigned long flagbit;
if (r->dst.s_addr == INADDR_ANY)
cp = "default";
else
cp = inet_ntoa_r (r->dst, buf);
printf ("%-16s", cp);
if (!(r->flags & RTF_HOST))
cp = inet_ntoa_r (r->gw_mask, buf);
else
cp = "";
printf ("%-16s", cp);
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);
}
