void
ripng_zebra_ipv6_delete (struct prefix_ipv6 *p, struct in6_addr *nexthop,
unsigned int ifindex)
{
struct zapi_ipv6 api;
if (zclient->redist[ZEBRA_ROUTE_RIPNG])
{
api.type = ZEBRA_ROUTE_RIPNG;
api.flags = 0;
api.message = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
api.nexthop = &nexthop;
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
api.ifindex_num = 1;
api.ifindex = &ifindex;
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, p, &api);
}
}
void
ripng_zebra_ipv6_add (struct prefix_ipv6 *p, struct in6_addr *nexthop,
unsigned int ifindex, u_char metric)
{
struct zapi_ipv6 api;
if (zclient->redist[ZEBRA_ROUTE_RIPNG])
{
api.type = ZEBRA_ROUTE_RIPNG;
api.flags = 0;
api.message = 0;
api.safi = SAFI_UNICAST;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
api.nexthop = &nexthop;
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
api.ifindex_num = 1;
api.ifindex = &ifindex;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = metric;
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, p, &api);
}
}
void
isis_zebra_route_del_ipv6 (struct prefix *prefix,
struct isis_route_info *route_info)
{
struct zapi_ipv6 api;
struct in6_addr **nexthop_list;
unsigned int *ifindex_list;
struct isis_nexthop6 *nexthop6;
int i, size;
struct listnode *node;
struct prefix_ipv6 prefix6;
if (CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNC))
return;
api.type = ZEBRA_ROUTE_ISIS;
api.flags = 0;
api.message = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
api.nexthop_num = listcount (route_info->nexthops6);
api.ifindex_num = listcount (route_info->nexthops6);
/* allocate memory for nexthop_list */
size = sizeof (struct isis_nexthop6 *) * listcount (route_info->nexthops6);
nexthop_list = (struct in6_addr **) XMALLOC (MTYPE_ISIS_TMP, size);
if (!nexthop_list)
{
zlog_err ("isis_zebra_route_del_ipv6: out of memory!");
return;
}
/* allocate memory for ifindex_list */
size = sizeof (unsigned int) * listcount (route_info->nexthops6);
ifindex_list = (unsigned int *) XMALLOC (MTYPE_ISIS_TMP, size);
if (!ifindex_list)
{
zlog_err ("isis_zebra_route_del_ipv6: out of memory!");
XFREE (MTYPE_ISIS_TMP, nexthop_list);
return;
}
/* for each nexthop */
i = 0;
for (node = listhead (route_info->nexthops6); node; nextnode (node))
{
nexthop6 = getdata (node);
if (!IN6_IS_ADDR_LINKLOCAL (&nexthop6->ip6) &&
!IN6_IS_ADDR_UNSPECIFIED (&nexthop6->ip6))
{
api.nexthop_num--;
api.ifindex_num--;
continue;
}
nexthop_list[i] = &nexthop6->ip6;
ifindex_list[i] = nexthop6->ifindex;
i++;
}
api.nexthop = nexthop_list;
api.ifindex = ifindex_list;
if (api.nexthop_num && api.ifindex_num)
{
prefix6.family = AF_INET6;
prefix6.prefixlen = prefix->prefixlen;
memcpy (&prefix6.prefix, &prefix->u.prefix6, sizeof (struct in6_addr));
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, &prefix6, &api);
UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNC);
}
XFREE (MTYPE_ISIS_TMP, nexthop_list);
XFREE (MTYPE_ISIS_TMP, ifindex_list);
}
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
int flags;
struct peer *peer;
if (zclient->sock < 0)
return;
if (! zclient->redist[ZEBRA_ROUTE_BGP])
return;
peer = info->peer;
flags = 0;
if (peer->sort == BGP_PEER_IBGP)
{
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
SET_FLAG (flags, ZEBRA_FLAG_IBGP);
}
if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
|| CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
if (p->family == AF_INET)
{
struct zapi_ipv4 api;
struct in_addr *nexthop;
api.flags = flags;
nexthop = &info->attr->nexthop;
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
api.nexthop = &nexthop;
api.ifindex_num = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra send: IPv4 route delete %s/%d nexthop %s metric %u",
inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
p->prefixlen,
inet_ntop(AF_INET, nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient,
(struct prefix_ipv4 *) p, &api);
}
#ifdef HAVE_IPV6
/* We have to think about a IPv6 link-local address curse. */
if (p->family == AF_INET6)
{
struct zapi_ipv6 api;
unsigned int ifindex;
struct in6_addr *nexthop;
assert (info->attr->extra);
ifindex = 0;
nexthop = NULL;
/* Only global address nexthop exists. */
if (info->attr->extra->mp_nexthop_len == 16)
nexthop = &info->attr->extra->mp_nexthop_global;
/* If both global and link-local address present. */
if (info->attr->extra->mp_nexthop_len == 32)
{
nexthop = &info->attr->extra->mp_nexthop_local;
if (info->peer->nexthop.ifp)
ifindex = info->peer->nexthop.ifp->ifindex;
}
if (nexthop == NULL)
return;
if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
if (info->peer->ifname)
ifindex = if_nametoindex (info->peer->ifname);
api.flags = flags;
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
api.nexthop = &nexthop;
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
api.ifindex_num = 1;
api.ifindex = &ifindex;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra send: IPv6 route delete %s/%d nexthop %s metric %u",
inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
p->prefixlen,
inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient,
(struct prefix_ipv6 *) p, &api);
}
#endif /* HAVE_IPV6 */
}
void
bgp_zebra_announce (struct prefix *p, struct bgp_info *info, struct bgp *bgp, safi_t safi)
{
int flags;
u_char distance;
struct peer *peer;
struct bgp_info *mpinfo;
size_t oldsize, newsize;
if (zclient->sock < 0)
return;
if (! zclient->redist[ZEBRA_ROUTE_BGP])
return;
flags = 0;
peer = info->peer;
if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED)
{
SET_FLAG (flags, ZEBRA_FLAG_IBGP);
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
}
if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
|| CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
/* resize nexthop buffer size if necessary */
if ((oldsize = stream_get_size (bgp_nexthop_buf)) <
(sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1)))
{
newsize = (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1));
newsize = stream_resize (bgp_nexthop_buf, newsize);
if (newsize == oldsize)
{
zlog_err ("can't resize nexthop buffer");
return;
}
}
stream_reset (bgp_nexthop_buf);
if (p->family == AF_INET)
{
struct zapi_ipv4 api;
struct in_addr *nexthop;
api.flags = flags;
nexthop = &info->attr->nexthop;
stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
for (mpinfo = bgp_info_mpath_first (info); mpinfo;
mpinfo = bgp_info_mpath_next (mpinfo))
{
nexthop = &mpinfo->attr->nexthop;
stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *));
}
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1 + bgp_info_mpath_count (info);
api.nexthop = (struct in_addr **)STREAM_DATA (bgp_nexthop_buf);
api.ifindex_num = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
distance = bgp_distance_apply (p, info, bgp);
if (distance)
{
SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE);
api.distance = distance;
}
if (BGP_DEBUG(zebra, ZEBRA))
{
int i;
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra send: IPv4 route add %s/%d nexthop %s metric %u"
" count %d",
inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
p->prefixlen,
inet_ntop(AF_INET, api.nexthop[0], buf[1], sizeof(buf[1])),
api.metric, api.nexthop_num);
for (i = 1; i < api.nexthop_num; i++)
zlog_debug("Zebra send: IPv4 route add [nexthop %d] %s",
i, inet_ntop(AF_INET, api.nexthop[i], buf[1],
sizeof(buf[1])));
}
zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient,
(struct prefix_ipv4 *) p, &api);
}
#ifdef HAVE_IPV6
/* We have to think about a IPv6 link-local address curse. */
if (p->family == AF_INET6)
{
unsigned int ifindex;
struct in6_addr *nexthop;
struct zapi_ipv6 api;
ifindex = 0;
nexthop = NULL;
assert (info->attr->extra);
/* Only global address nexthop exists. */
if (info->attr->extra->mp_nexthop_len == 16)
nexthop = &info->attr->extra->mp_nexthop_global;
/* If both global and link-local address present. */
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 (info->peer->nexthop.ifp)
ifindex = info->peer->nexthop.ifp->ifindex;
}
if (nexthop == NULL)
return;
if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex)
{
if (info->peer->ifname)
ifindex = if_nametoindex (info->peer->ifname);
else if (info->peer->nexthop.ifp)
ifindex = info->peer->nexthop.ifp->ifindex;
}
/* Make Zebra API structure. */
api.flags = flags;
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
api.nexthop = &nexthop;
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
api.ifindex_num = 1;
api.ifindex = &ifindex;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra send: IPv6 route add %s/%d nexthop %s metric %u",
inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
p->prefixlen,
inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient,
(struct prefix_ipv6 *) p, &api);
}
#endif /* HAVE_IPV6 */
}
void
bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi)
{
int flags;
struct peer *peer;
if (zclient->sock < 0)
return;
if (! vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_BGP], VRF_DEFAULT))
return;
peer = info->peer;
flags = 0;
if (peer->sort == BGP_PEER_IBGP)
{
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
SET_FLAG (flags, ZEBRA_FLAG_IBGP);
}
if ((peer->sort == BGP_PEER_EBGP && peer_ttl (peer) != 1)
|| CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK))
SET_FLAG (flags, ZEBRA_FLAG_INTERNAL);
if (p->family == AF_INET)
{
struct zapi_ipv4 api;
api.vrf_id = VRF_DEFAULT;
api.flags = flags;
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
api.nexthop_num = 0;
api.ifindex_num = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
if ((info->attr->extra) && (info->attr->extra->tag != 0))
{
SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
api.tag = info->attr->extra->tag;
}
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra send: IPv4 route delete %s/%d metric %u tag %d",
inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])),
p->prefixlen,
api.metric,
api.tag);
}
zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient,
(struct prefix_ipv4 *) p, &api);
}
/* We have to think about a IPv6 link-local address curse. */
if (p->family == AF_INET6)
{
struct zapi_ipv6 api;
api.vrf_id = VRF_DEFAULT;
api.flags = flags;
api.type = ZEBRA_ROUTE_BGP;
api.message = 0;
api.safi = safi;
api.nexthop_num = 0;
api.ifindex_num = 0;
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = info->attr->med;
if ((info->attr->extra) && (info->attr->extra->tag != 0))
{
SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
api.tag = info->attr->extra->tag;
}
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra send: IPv6 route delete %s/%d metric %u tag %d",
inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])),
p->prefixlen,
api.metric,
api.tag);
}
zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient,
(struct prefix_ipv6 *) p, &api);
}
}
/* Send ECMP routes to zebra. */
static void
ripng_zebra_ipv6_send (struct route_node *rp, u_char cmd)
{
static struct in6_addr **nexthops = NULL;
static unsigned int *ifindexes = NULL;
static unsigned int nexthops_len = 0;
struct list *list = (struct list *)rp->info;
struct zapi_ipv6 api;
struct listnode *listnode = NULL;
struct ripng_info *rinfo = NULL;
int count = 0;
if (vrf_bitmap_check (zclient->redist[ZEBRA_ROUTE_RIPNG], VRF_DEFAULT))
{
api.vrf_id = VRF_DEFAULT;
api.type = ZEBRA_ROUTE_RIPNG;
api.flags = 0;
api.message = 0;
api.safi = SAFI_UNICAST;
if (nexthops_len < listcount (list))
{
nexthops_len = listcount (list);
nexthops = XREALLOC (MTYPE_TMP, nexthops,
nexthops_len * sizeof (struct in6_addr *));
ifindexes = XREALLOC (MTYPE_TMP, ifindexes,
nexthops_len * sizeof (unsigned int));
}
SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX);
for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo))
{
nexthops[count] = &rinfo->nexthop;
ifindexes[count] = rinfo->ifindex;
count++;
if (cmd == ZEBRA_IPV6_ROUTE_ADD)
SET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
else
UNSET_FLAG (rinfo->flags, RIPNG_RTF_FIB);
}
api.nexthop = nexthops;
api.nexthop_num = count;
api.ifindex = ifindexes;
api.ifindex_num = count;
rinfo = listgetdata (listhead (list));
SET_FLAG (api.message, ZAPI_MESSAGE_METRIC);
api.metric = rinfo->metric;
zapi_ipv6_route (cmd, zclient,
(struct prefix_ipv6 *)&rp->p, &api);
if (IS_RIPNG_DEBUG_ZEBRA)
{
if (ripng->ecmp)
zlog_debug ("%s: %s/%d nexthops %d",
(cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
"Install into zebra" : "Delete from zebra",
inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen, count);
else
zlog_debug ("%s: %s/%d",
(cmd == ZEBRA_IPV6_ROUTE_ADD) ? \
"Install into zebra" : "Delete from zebra",
inet6_ntoa (rp->p.u.prefix6), rp->p.prefixlen);
}
}
