static int
zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr)
{
struct stream *s;
struct rib *rib;
unsigned long nump;
u_char num;
struct nexthop *nexthop;
/* Lookup nexthop. */
rib = rib_match_ipv4 (addr);
/* Get output stream. */
s = client->obuf;
stream_reset (s);
/* Fill in result. */
stream_putw (s, 0);
stream_putc (s, ZEBRA_IPV4_NEXTHOP_LOOKUP);
stream_put_in_addr (s, &addr);
if (rib)
{
stream_putl (s, rib->metric);
num = 0;
nump = s->putp;
stream_putc (s, 0);
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB))
{
stream_putc (s, nexthop->type);
switch (nexthop->type)
{
case ZEBRA_NEXTHOP_IPV4:
stream_put_in_addr (s, &nexthop->gate.ipv4);
break;
case ZEBRA_NEXTHOP_IFINDEX:
case ZEBRA_NEXTHOP_IFNAME:
stream_putl (s, nexthop->ifindex);
break;
default:
/* do nothing */
break;
}
num++;
}
stream_putc_at (s, nump, num);
}
else
{
stream_putl (s, 0);
stream_putc (s, 0);
}
stream_putw_at (s, 0, stream_get_endp (s));
zebra_server_send_message (client->sock, s->data, stream_get_endp (s));
return 0;
}
/*
* Search the network interface and gateway address to forward the packet.
* Return also the IP adress of the interface,
*/
if_t *route_lookup (uint32_t ip)
{
struct rib * rib_new;
struct in_addr addr;
if_t *outif = NULL;
addr.s_addr = ip;
rib_new = rib_match_ipv4 (addr);
if (!rib_new) {
/*Temp Fix*/
if ((ip & 0x000007f) == 0x7f)
return get_loopback_if ();
return NULL;
}
outif = if_lookup_by_index (rib_new->nexthop->ifindex);
if ((outif->ip_addr.addr == ip) || ((ip & 0x000007f) == 0x7f)) {
outif = get_loopback_if ();
}
return outif;
}
static int
zsend_ipv4_nexthop_lookup (struct zserv *client, struct in_addr addr)
{
struct stream *s;
struct rib *rib;
unsigned long nump;
u_char num;
struct nexthop *nexthop;
/* Lookup nexthop. */
rib = rib_match_ipv4 (addr);
/* Get output stream. */
s = client->obuf;
stream_reset (s);
/* Fill in result. */
zserv_create_header (s, ZEBRA_IPV4_NEXTHOP_LOOKUP);
stream_put_in_addr (s, &addr);
if (rib)
{
if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV)
zlog_debug("%s: Matching rib entry found.", __func__);
stream_putl (s, rib->metric);
num = 0;
nump = stream_get_endp(s);
stream_putc (s, 0);
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB))
{
stream_putc (s, nexthop->type);
switch (nexthop->type)
{
case ZEBRA_NEXTHOP_IPV4:
stream_put_in_addr (s, &nexthop->gate.ipv4);
break;
case ZEBRA_NEXTHOP_IPV4_IFINDEX:
stream_put_in_addr (s, &nexthop->gate.ipv4);
stream_putl (s, nexthop->ifindex);
break;
case ZEBRA_NEXTHOP_IFINDEX:
case ZEBRA_NEXTHOP_IFNAME:
stream_putl (s, nexthop->ifindex);
break;
default:
/* do nothing */
break;
}
num++;
}
stream_putc_at (s, nump, num);
}
else
{
if (IS_ZEBRA_DEBUG_PACKET && IS_ZEBRA_DEBUG_RECV)
zlog_debug("%s: No matching rib entry found.", __func__);
stream_putl (s, 0);
stream_putc (s, 0);
}
stream_putw_at (s, 0, stream_get_endp (s));
return zebra_server_send_message(client);
}