s32 bgp_fec_announce_6pe(struct zclient *zc, struct prefix *p, struct bgp_info *info, struct bgp *bgp)
{
u32 flags = 0;
struct stream * s = zc->obuf ;
struct peer * peer = info->peer ;
u32 gateway ,label ;
struct rtm_fec_info_key key;
struct in6_addr *nexthop = NULL;
if( !info || !info->attr || !info->attr->extra )
return -1 ;
if (info->attr->extra->mp_nexthop_len == 16)
{
nexthop = &info->attr->extra->mp_nexthop_global;
}
/* If both global and link-local address present. */
else if (info->attr->extra->mp_nexthop_len == 32)
{
/* Workaround for Cisco's nexthop bug. */
if (IN6_IS_ADDR_UNSPECIFIED (&info->attr->extra->mp_nexthop_global)
&& peer->su_remote->sa.sa_family == AF_INET6)
nexthop = &peer->su_remote->sin6.sin6_addr;
else
nexthop = &info->attr->extra->mp_nexthop_local;
}
if(NULL == nexthop || !IN6_IS_ADDR_V4MAPPED(nexthop))
{
return -1;
}
memcpy (&gateway , ((s8 *)nexthop) + 12, 4);
label = decode_label ( bgp_info_extra_get(info)->tag) ;
SET_FLAG(flags, ZAPI_FEC_GATEWAY);
stream_reset(s);
zclient_create_header(s,ZEBRA_MPLS_FEC6_INFO_ADD);
stream_put_prefix(s,p);
stream_putl(s, flags);
stream_putl(s, ZEBRA_FEC_TYPE_6PE);
if( peer )
stream_putl(s,peer->nexthop.v4.s_addr);
else
stream_putl(s,0); // lsr_id = 0
stream_putl(s,label);
stream_putl(s,gateway);
stream_putw_at (s, 0, stream_get_endp (s));
key.peer_addr = gateway;
return rtm_fec_send(ZEBRA_MPLS_FEC6_INFO_ADD, zc, p, s, &key) ;
}
s32 bgp_fec_announce_6vpe(bgp_litevrf_config_t *litevrf, struct prefix *p, struct bgp_info *info)
{
u32 flags = 0;
struct stream * s = zclient->obuf ;
struct peer * peer = info->peer ;
u32 gateway ,label ;
struct rtm_fec_info_key key;
struct in6_addr *nexthop = NULL;
if( !info || !info->attr || !info->attr->extra )
return -1 ;
nexthop = &info->attr->extra->mp_nexthop_global;
if(NULL == nexthop || !IN6_IS_ADDR_V4MAPPED(nexthop))
{
return -1;
}
memcpy (&gateway , ((s8 *)nexthop) + 12, 4);
label = decode_label ( bgp_info_extra_get(info)->tag) ;
SET_FLAG(flags, ZAPI_FEC_GATEWAY|ZAPI_FEC_LITEVRF);
stream_reset(s);
zclient_create_header(s,ZEBRA_MPLS_FEC6_INFO_ADD);
stream_put_prefix(s,p);
stream_putl(s, flags);
stream_putl(s,litevrf->id);
stream_putl(s, ZEBRA_FEC_TYPE_6VPE);
if( peer )
stream_putl(s,peer->nexthop.v4.s_addr);
else
stream_putl(s,0); // lsr_id = 0
stream_putl(s,label);
stream_putl(s,gateway);
stream_putw_at (s, 0, stream_get_endp (s));
key.peer_addr = gateway;
return rtm_fec_send(ZEBRA_MPLS_FEC6_INFO_ADD, zclient, p, s, &key) ;
}
static int
send_client (struct rnh *rnh, struct zserv *client, vrf_id_t vrf_id)
{
struct stream *s;
struct rib *rib;
unsigned long nump;
u_char num;
struct nexthop *nexthop;
struct route_node *rn;
rn = rnh->node;
rib = rnh->state;
/* Get output stream. */
s = client->obuf;
stream_reset (s);
zserv_create_header (s, ZEBRA_NEXTHOP_UPDATE, vrf_id);
stream_putw(s, rn->p.family);
stream_put_prefix (s, &rn->p);
if (rib)
{
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) &&
! CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE) &&
CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
{
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;
case ZEBRA_NEXTHOP_IPV4_IFINDEX:
case ZEBRA_NEXTHOP_IPV4_IFNAME:
stream_put_in_addr (s, &nexthop->gate.ipv4);
stream_putl (s, nexthop->ifindex);
break;
#ifdef HAVE_IPV6
case ZEBRA_NEXTHOP_IPV6:
stream_put (s, &nexthop->gate.ipv6, 16);
break;
case ZEBRA_NEXTHOP_IPV6_IFINDEX:
case ZEBRA_NEXTHOP_IPV6_IFNAME:
stream_put (s, &nexthop->gate.ipv6, 16);
stream_putl (s, nexthop->ifindex);
break;
#endif /* HAVE_IPV6 */
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));
client->nh_last_upd_time = quagga_time(NULL);
client->last_write_cmd = ZEBRA_NEXTHOP_UPDATE;
return zebra_server_send_message(client);
}
