/* Zebra route add and delete treatment. */
static int
zebra_read_ipv6 (int command, struct zclient *zclient, zebra_size_t length)
{
struct stream *s;
struct zapi_ipv6 api;
struct in6_addr nexthop;
struct prefix_ipv6 p;
s = zclient->ibuf;
memset (&nexthop, 0, sizeof (struct in6_addr));
/* Type, flags, message. */
api.type = stream_getc (s);
api.flags = stream_getc (s);
api.message = stream_getc (s);
/* IPv6 prefix. */
memset (&p, 0, sizeof (struct prefix_ipv6));
p.family = AF_INET6;
p.prefixlen = stream_getc (s);
stream_get (&p.prefix, s, PSIZE (p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
{
api.nexthop_num = stream_getc (s);
stream_get (&nexthop, s, 16);
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
{
api.ifindex_num = stream_getc (s);
stream_getl (s); /* ifindex, unused */
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
api.distance = stream_getc (s);
else
api.distance = 0;
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
api.metric = stream_getl (s);
else
api.metric = 0;
/* Simply ignore link-local address. */
if (IN6_IS_ADDR_LINKLOCAL (&p.prefix))
return 0;
if (command == ZEBRA_IPV6_ROUTE_ADD)
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv6 route add %s %s/%d nexthop %s metric %u",
zebra_route_string(api.type),
inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
bgp_redistribute_add ((struct prefix *)&p, NULL, &nexthop,
api.metric, api.type);
}
else
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET6_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv6 route delete %s %s/%d "
"nexthop %s metric %u",
zebra_route_string(api.type),
inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET6, &nexthop, buf[1], sizeof(buf[1])),
api.metric);
}
bgp_redistribute_delete ((struct prefix *) &p, api.type);
}
return 0;
}
/* Zebra route add and delete treatment. */
static int
zebra_read_ipv4 (int command, struct zclient *zclient, zebra_size_t length,
vrf_id_t vrf_id)
{
struct stream *s;
struct zapi_ipv4 api;
struct in_addr nexthop;
struct prefix_ipv4 p;
unsigned char plength = 0;
s = zclient->ibuf;
nexthop.s_addr = 0;
/* Type, flags, message. */
api.type = stream_getc (s);
api.flags = stream_getc (s);
api.message = stream_getc (s);
/* IPv4 prefix. */
memset (&p, 0, sizeof (struct prefix_ipv4));
p.family = AF_INET;
plength = stream_getc (s);
p.prefixlen = MIN(IPV4_MAX_PREFIXLEN, plength);
stream_get (&p.prefix, s, PSIZE (p.prefixlen));
/* Nexthop, ifindex, distance, metric. */
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP))
{
api.nexthop_num = stream_getc (s);
nexthop.s_addr = stream_get_ipv4 (s);
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX))
{
api.ifindex_num = stream_getc (s);
stream_getl (s); /* ifindex, unused */
}
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
api.distance = stream_getc (s);
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
api.metric = stream_getl (s);
else
api.metric = 0;
if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG))
api.tag = stream_getl (s);
else
api.tag = 0;
if (command == ZEBRA_IPV4_ROUTE_ADD)
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv4 route add %s %s/%d nexthop %s metric %u tag %d",
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric,
api.tag);
}
bgp_redistribute_add ((struct prefix *)&p, &nexthop, NULL,
api.metric, api.type, api.tag);
}
else
{
if (BGP_DEBUG(zebra, ZEBRA))
{
char buf[2][INET_ADDRSTRLEN];
zlog_debug("Zebra rcvd: IPv4 route delete %s %s/%d "
"nexthop %s metric %u tag %d",
zebra_route_string(api.type),
inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])),
p.prefixlen,
inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])),
api.metric,
api.tag);
}
bgp_redistribute_delete((struct prefix *)&p, api.type);
}
return 0;
}