From 39e6e65a2c5a3312f365d59f23c469641e049c82 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Wed, 19 Aug 1998 21:32:28 +0000
Subject: Base files

---
 c/src/lib/libnetworking/rtems/rtems_showroute.c | 159 ++++++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100644 c/src/lib/libnetworking/rtems/rtems_showroute.c

(limited to 'c/src/lib/libnetworking/rtems/rtems_showroute.c')

diff --git a/c/src/lib/libnetworking/rtems/rtems_showroute.c b/c/src/lib/libnetworking/rtems/rtems_showroute.c
new file mode 100644
index 0000000000..8695680d5e
--- /dev/null
+++ b/c/src/lib/libnetworking/rtems/rtems_showroute.c
@@ -0,0 +1,159 @@
+#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);
+}
-- 
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