Ejemplo n.º 1
0
void
trace_if(const char *act,
	 struct interface *ifp)
{
	if (!TRACEACTIONS || ftrace == 0)
		return;

	lastlog();
	(void)fprintf(ftrace, "%-3s interface %-4s ", act, ifp->int_name);
	(void)fprintf(ftrace, "%-15s-->%-15s ",
		      naddr_ntoa(ifp->int_addr),
		      addrname(((ifp->int_if_flags & IFF_POINTOPOINT)
				? ifp->int_dstaddr
				: htonl(ifp->int_net)),
			       ifp->int_mask, 1));
	if (ifp->int_metric != 0)
		(void)fprintf(ftrace, "metric=%d ", ifp->int_metric);
	if (ifp->int_adj_inmetric != 0)
		(void)fprintf(ftrace, "adj_inmetric=%u ",
			      ifp->int_adj_inmetric);
	if (ifp->int_adj_outmetric != 0)
		(void)fprintf(ftrace, "adj_outmetric=%u ",
			      ifp->int_adj_outmetric);
	if (!IS_RIP_OUT_OFF(ifp->int_state)
	    && ifp->int_d_metric != 0)
		(void)fprintf(ftrace, "fake_default=%u ", ifp->int_d_metric);
	trace_bits(if_bits, ifp->int_if_flags, 0);
	trace_bits(is_bits, ifp->int_state, 0);
	(void)fputc('\n',ftrace);
}
Ejemplo n.º 2
0
char *
rtname(naddr dst,
       naddr mask,
       naddr gate)
{
	static char buf[3*4+3+1+2+3	/* "xxx.xxx.xxx.xxx/xx-->" */
			+3*4+3+1];	/* "xxx.xxx.xxx.xxx" */
	int i;

	i = sprintf(buf, "%-16s-->", addrname(dst, mask, 0));
	sprintf(&buf[i], "%-*s", 15+20-MAX(20,i), naddr_ntoa(gate));
	return buf;
}
Ejemplo n.º 3
0
char *
rtname(in_addr_t dst,
    in_addr_t mask,
    in_addr_t gate)
{
	static char buf[sizeof ("xxx.xxx.xxx.xxx/xx-->xxx.xxx.xxx.xxx")];
	int i;

	(void) snprintf(buf, sizeof (buf), "%-16s-->", addrname(dst, mask, 0));
	i = strlen(buf);
	(void) snprintf(&buf[i], (sizeof (buf) -i), "%-*s", 15+24-MAX(24, i),
	    naddr_ntoa(gate));
	return (buf);
}
Ejemplo n.º 4
0
void
trace_khash(const struct khash *krt)
{
	if (ftrace == NULL)
		return;

	lastlog();
	(void) fprintf(ftrace, "  %-15s-->%-15s metric=%d ",
	    addrname(krt->k_dst, krt->k_mask, 0),
	    naddr_ntoa(krt->k_gate), krt->k_metric);
	if (krt->k_ifp != NULL)
		(void) fprintf(ftrace, "ifp %s ", krt->k_ifp->int_name);
	else
		(void) fprintf(ftrace, "ifp NULL ");
	(void) fprintf(ftrace, "%s ", ts(krt->k_keep));
	(void) fprintf(ftrace, "%s ", ts(krt->k_redirect_time));
	trace_bits(ks_bits, krt->k_state, _B_TRUE);
	(void) fputc('\n', ftrace);
}
Ejemplo n.º 5
0
/* put an entry into the packet
 */
static void
supply_out(struct ag_info *ag)
{
	int i;
	naddr mask, v1_mask, dst_h, ddst_h = 0;
	struct ws_buf *wb;


	/* Skip this route if doing a flash update and it and the routes
	 * it aggregates have not changed recently.
	 */
	if (ag->ag_seqno < update_seqno
	    && (ws.state & WS_ST_FLASH))
		return;

	dst_h = ag->ag_dst_h;
	mask = ag->ag_mask;
	v1_mask = ripv1_mask_host(htonl(dst_h),
				  (ws.state & WS_ST_TO_ON_NET) ? ws.ifp : 0);
	i = 0;

	/* If we are sending RIPv2 packets that cannot (or must not) be
	 * heard by RIPv1 listeners, do not worry about sub- or supernets.
	 * Subnets (from other networks) can only be sent via multicast.
	 * A pair of subnet routes might have been promoted so that they
	 * are legal to send by RIPv1.
	 * If RIPv1 is off, use the multicast buffer.
	 */
	if ((ws.state & WS_ST_RIP2_ALL)
	    || ((ag->ag_state & AGS_RIPV2) && v1_mask != mask)) {
		/* use the RIPv2-only buffer */
		wb = &v2buf;

	} else {
		/* use the RIPv1-or-RIPv2 buffer */
		wb = &v12buf;

		/* Convert supernet route into corresponding set of network
		 * routes for RIPv1, but leave non-contiguous netmasks
		 * to ag_check().
		 */
		if (v1_mask > mask
		    && mask + (mask & -mask) == 0) {
			ddst_h = v1_mask & -v1_mask;
			i = (v1_mask & ~mask)/ddst_h;

			if (i > ws.gen_limit) {
				/* Punt if we would have to generate an
				 * unreasonable number of routes.
				 */
				if (TRACECONTENTS)
					trace_misc("sending %s-->%s as 1"
						   " instead of %d routes",
						   addrname(htonl(dst_h), mask,
							1),
						   naddr_ntoa(ws.to.sin_addr
							.s_addr),
						   i+1);
				i = 0;

			} else {
				mask = v1_mask;
				ws.gen_limit -= i;
			}
		}
	}

	do {
		wb->n->n_family = RIP_AF_INET;
		wb->n->n_dst = htonl(dst_h);
		/* If the route is from router-discovery or we are
		 * shutting down, admit only a bad metric.
		 */
		wb->n->n_metric = ((stopint || ag->ag_metric < 1)
				   ? HOPCNT_INFINITY
				   : ag->ag_metric);
		wb->n->n_metric = htonl(wb->n->n_metric);
		/* Any non-zero bits in the supposedly unused RIPv1 fields
		 * cause the old `routed` to ignore the route.
		 * That means the mask and so forth cannot be sent
		 * in the hybrid RIPv1/RIPv2 mode.
		 */
		if (ws.state & WS_ST_RIP2_ALL) {
			if (ag->ag_nhop != 0
			    && ((ws.state & WS_ST_QUERY)
				|| (ag->ag_nhop != ws.ifp->int_addr
				    && on_net(ag->ag_nhop,
					      ws.ifp->int_net,
					      ws.ifp->int_mask))))
				wb->n->n_nhop = ag->ag_nhop;
			wb->n->n_mask = htonl(mask);
			wb->n->n_tag = ag->ag_tag;
		}
		dst_h += ddst_h;

		if (++wb->n >= wb->lim)
			supply_write(wb);
	} while (i-- != 0);
}