{
struct zapi_route api;
struct zapi_nexthop *api_nh;
+ int nh_family;
int valid_nh_count = 0;
-
+ int has_valid_label = 0;
u_char distance;
struct peer *peer;
struct bgp_info *mpinfo;
SET_FLAG(api.flags, ZEBRA_FLAG_INTERNAL);
- if (p->family == AF_INET && !BGP_ATTR_NEXTHOP_AFI_IP6(info->attr)) {
- struct in_addr *nexthop;
- char buf[2][INET_ADDRSTRLEN];
- int has_valid_label = 0;
+ /* Get nexthop address-family */
+ if (p->family == AF_INET && !BGP_ATTR_NEXTHOP_AFI_IP6(info->attr))
+ nh_family = AF_INET;
+ else if (p->family == AF_INET6
+ || (p->family == AF_INET
+ && BGP_ATTR_NEXTHOP_AFI_IP6(info->attr)))
+ nh_family = AF_INET6;
+ else
+ return;
- nexthop = NULL;
+ if (bgp->table_map[afi][safi].name)
+ BGP_INFO_ATTR_BUF_INIT();
- if (bgp->table_map[afi][safi].name)
- BGP_INFO_ATTR_BUF_INIT();
+ /* Metric is currently based on the best-path only */
+ metric = info->attr->med;
+ for (mpinfo = info; mpinfo; mpinfo = bgp_info_mpath_next(mpinfo)) {
+ if (nh_family == AF_INET) {
+ struct in_addr *nexthop;
- /* Metric is currently based on the best-path only */
- metric = info->attr->med;
- for (mpinfo = info; mpinfo;
- mpinfo = bgp_info_mpath_next(mpinfo)) {
nexthop = NULL;
if (bgp->table_map[afi][safi].name) {
bgp->table_map[afi][safi].map, p,
info_cp)) {
if (mpinfo == info) {
- /* Metric is currently based on
- * the best-path only */
metric = info_cp->attr->med;
tag = info_cp->attr->tag;
}
api_nh = &api.nexthops[valid_nh_count];
api_nh->gate.ipv4 = *nexthop;
api_nh->type = NEXTHOP_TYPE_IPV4;
+ } else {
+ ifindex_t ifindex;
+ struct in6_addr *nexthop;
- if (mpinfo->extra
- && bgp_is_valid_label(&mpinfo->extra->label)) {
- has_valid_label = 1;
- label = label_pton(&mpinfo->extra->label);
-
- api_nh->label_num = 1;
- api_nh->labels[0] = label;
- }
- valid_nh_count++;
- }
-
- if (has_valid_label)
- SET_FLAG(api.message, ZAPI_MESSAGE_LABEL);
-
- /* Note that this currently only applies to Null0 routes for
- * aggregates.
- * ZEBRA_FLAG_BLACKHOLE signals zapi_ipv4_route to encode a
- * special
- * BLACKHOLE nexthop. We want to set api.nexthop_num to zero
- * since we
- * do not want to also encode the 0.0.0.0 nexthop for the
- * aggregate route.
- */
- if (CHECK_FLAG(api.flags, ZEBRA_FLAG_BLACKHOLE))
- api.nexthop_num = 0;
- else
- api.nexthop_num = valid_nh_count;
-
- SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
- api.metric = metric;
-
- api.tag = 0;
- if (tag) {
- SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
- api.tag = tag;
- }
-
- distance = bgp_distance_apply(p, info, afi, safi, bgp);
- if (distance) {
- SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
- api.distance = distance;
- }
-
- if (bgp_debug_zebra(p)) {
- int i;
- char label_buf[20];
- zlog_debug(
- "Tx IPv4 route %s VRF %u %s/%d metric %u tag %" ROUTE_TAG_PRI
- " count %d",
- (valid_nh_count ? "add" : "delete"),
- bgp->vrf_id, inet_ntop(AF_INET, &p->u.prefix4,
- buf[0], sizeof(buf[0])),
- p->prefixlen, api.metric, api.tag,
- api.nexthop_num);
- for (i = 0; i < api.nexthop_num; i++) {
- api_nh = &api.nexthops[i];
-
- label_buf[0] = '\0';
- if (has_valid_label)
- sprintf(label_buf, "label %u",
- api_nh->labels[0]);
- zlog_debug(" nhop [%d]: %s %s", i + 1,
- inet_ntop(AF_INET,
- &api_nh->gate.ipv4, buf[1],
- sizeof(buf[1])),
- label_buf);
- }
- }
-
- zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
- : ZEBRA_ROUTE_DELETE,
- zclient, &api);
- }
-
- /* We have to think about a IPv6 link-local address curse. */
- if (p->family == AF_INET6
- || (p->family == AF_INET && BGP_ATTR_NEXTHOP_AFI_IP6(info->attr))) {
- ifindex_t ifindex;
- struct in6_addr *nexthop;
- char buf[2][INET6_ADDRSTRLEN];
- int has_valid_label = 0;
-
- ifindex = 0;
- nexthop = NULL;
-
- if (bgp->table_map[afi][safi].name)
- BGP_INFO_ATTR_BUF_INIT();
-
- metric = info->attr->med;
- for (mpinfo = info; mpinfo;
- mpinfo = bgp_info_mpath_next(mpinfo)) {
ifindex = 0;
nexthop = NULL;
api_nh->gate.ipv6 = *nexthop;
api_nh->ifindex = ifindex;
api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
+ }
- if (mpinfo->extra
- && bgp_is_valid_label(&mpinfo->extra->label)) {
- has_valid_label = 1;
- label = label_pton(&mpinfo->extra->label);
+ if (mpinfo->extra
+ && bgp_is_valid_label(&mpinfo->extra->label)) {
+ has_valid_label = 1;
+ label = label_pton(&mpinfo->extra->label);
- api_nh->label_num = 1;
- api_nh->labels[0] = label;
- }
- valid_nh_count++;
+ api_nh->label_num = 1;
+ api_nh->labels[0] = label;
}
+ valid_nh_count++;
+ }
- if (has_valid_label)
- SET_FLAG(api.message, ZAPI_MESSAGE_LABEL);
-
- /* Note that this currently only applies to Null0 routes for
- * aggregates.
- * ZEBRA_FLAG_BLACKHOLE signals zapi_ipv6_route to encode a
- * special
- * BLACKHOLE nexthop. We want to set api.nexthop_num to zero
- * since we
- * do not want to also encode the :: nexthop for the aggregate
- * route.
- */
- if (CHECK_FLAG(api.flags, ZEBRA_FLAG_BLACKHOLE))
- api.nexthop_num = 0;
- else
- api.nexthop_num = valid_nh_count;
-
- SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
- api.metric = metric;
+ if (has_valid_label)
+ SET_FLAG(api.message, ZAPI_MESSAGE_LABEL);
- api.tag = 0;
- if (tag) {
- SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
- api.tag = tag;
- }
+ if (!CHECK_FLAG(api.flags, ZEBRA_FLAG_BLACKHOLE))
+ api.nexthop_num = valid_nh_count;
- distance = bgp_distance_apply(p, info, afi, safi, bgp);
- if (distance) {
- SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
- api.distance = distance;
- }
+ SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
+ api.metric = metric;
- if (p->family == AF_INET) {
- if (bgp_debug_zebra(p)) {
- int i;
- char label_buf[20];
- zlog_debug(
- "Tx IPv4 route %s VRF %u %s/%d metric %u tag %" ROUTE_TAG_PRI,
- valid_nh_count ? "add" : "delete",
- bgp->vrf_id,
- inet_ntop(AF_INET, &p->u.prefix4,
- buf[0], sizeof(buf[0])),
- p->prefixlen, api.metric, api.tag);
- for (i = 0; i < api.nexthop_num; i++) {
- api_nh = &api.nexthops[i];
-
- label_buf[0] = '\0';
- if (has_valid_label)
- sprintf(label_buf, "label %u",
- api_nh->labels[0]);
- zlog_debug(
- " nhop [%d]: %s if %s %s",
- i + 1,
- inet_ntop(AF_INET6,
- &api_nh->gate.ipv6,
- buf[1],
- sizeof(buf[1])),
- ifindex2ifname(api_nh->ifindex,
- bgp->vrf_id),
- label_buf);
- }
- }
+ if (tag) {
+ SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
+ api.tag = tag;
+ }
- if (valid_nh_count)
- zclient_route_send(ZEBRA_ROUTE_ADD, zclient,
- &api);
- else
- zclient_route_send(ZEBRA_ROUTE_DELETE, zclient,
- &api);
- } else {
- if (bgp_debug_zebra(p)) {
- int i;
- char label_buf[20];
- zlog_debug(
- "Tx IPv6 route %s VRF %u %s/%d metric %u tag %" ROUTE_TAG_PRI,
- valid_nh_count ? "add" : "delete",
- bgp->vrf_id,
- inet_ntop(AF_INET6, &p->u.prefix6,
- buf[0], sizeof(buf[0])),
- p->prefixlen, api.metric, api.tag);
- for (i = 0; i < api.nexthop_num; i++) {
- api_nh = &api.nexthops[i];
-
- label_buf[0] = '\0';
- if (has_valid_label)
- sprintf(label_buf, "label %u",
- api_nh->labels[0]);
- zlog_debug(
- " nhop [%d]: %s if %s %s",
- i + 1,
- inet_ntop(AF_INET6,
- &api_nh->gate.ipv6,
- buf[1],
- sizeof(buf[1])),
- ifindex2ifname(api_nh->ifindex,
- bgp->vrf_id),
- label_buf);
- }
- }
+ distance = bgp_distance_apply(p, info, afi, safi, bgp);
+ if (distance) {
+ SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
+ api.distance = distance;
+ }
- zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
- : ZEBRA_ROUTE_DELETE,
- zclient, &api);
+ if (bgp_debug_zebra(p)) {
+ char prefix_buf[PREFIX_STRLEN];
+ char nh_buf[INET6_ADDRSTRLEN];
+ char label_buf[20];
+ int i;
+
+ prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf));
+ zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
+ " count %d",
+ valid_nh_count ? "add" : "delete", bgp->vrf_id,
+ prefix_buf, api.metric, api.tag, api.nexthop_num);
+ for (i = 0; i < api.nexthop_num; i++) {
+ api_nh = &api.nexthops[i];
+
+ inet_ntop(nh_family, &api_nh->gate, nh_buf,
+ sizeof(nh_buf));
+
+ label_buf[0] = '\0';
+ if (has_valid_label)
+ sprintf(label_buf, "label %u",
+ api_nh->labels[0]);
+ zlog_debug(" nhop [%d]: %s %s", i + 1, nh_buf,
+ label_buf);
}
}
+
+ zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
+ : ZEBRA_ROUTE_DELETE,
+ zclient, &api);
}
/* Announce all routes of a table to zebra */
void bgp_zebra_withdraw(struct prefix *p, struct bgp_info *info, safi_t safi)
{
- u_int32_t flags;
+ struct zapi_route api;
struct peer *peer;
peer = info->peer;
if (!bgp_install_info_to_zebra(peer->bgp))
return;
- flags = 0;
+ memset(&api, 0, sizeof(api));
+ api.vrf_id = peer->bgp->vrf_id;
+ api.type = ZEBRA_ROUTE_BGP;
+ api.safi = safi;
+ api.prefix = *p;
if (peer->sort == BGP_PEER_IBGP) {
- SET_FLAG(flags, ZEBRA_FLAG_INTERNAL);
- SET_FLAG(flags, ZEBRA_FLAG_IBGP);
+ SET_FLAG(api.flags, ZEBRA_FLAG_INTERNAL);
+ SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
}
if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1)
|| CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
|| bgp_flag_check(peer->bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
- SET_FLAG(flags, ZEBRA_FLAG_INTERNAL);
-
- if (p->family == AF_INET) {
- struct zapi_route api;
-
- memset(&api, 0, sizeof(api));
- api.vrf_id = peer->bgp->vrf_id;
- api.flags = flags;
- api.type = ZEBRA_ROUTE_BGP;
- api.safi = safi;
- api.prefix = *p;
+ SET_FLAG(api.flags, ZEBRA_FLAG_INTERNAL);
- if (bgp_debug_zebra(p)) {
- char buf[2][INET_ADDRSTRLEN];
- zlog_debug("Tx IPv4 route delete VRF %u %s/%d",
- peer->bgp->vrf_id,
- inet_ntop(AF_INET, &p->u.prefix4, buf[0],
- sizeof(buf[0])),
- p->prefixlen);
- }
+ if (bgp_debug_zebra(p)) {
+ char buf[PREFIX_STRLEN];
- zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
+ prefix2str(&api.prefix, buf, sizeof(buf));
+ zlog_debug("Tx route delete VRF %u %s", peer->bgp->vrf_id, buf);
}
- /* We have to think about a IPv6 link-local address curse. */
- if (p->family == AF_INET6) {
- struct zapi_route api;
-
- memset(&api, 0, sizeof(api));
- api.vrf_id = peer->bgp->vrf_id;
- api.flags = flags;
- api.type = ZEBRA_ROUTE_BGP;
- api.safi = safi;
- api.prefix = *p;
-
- if (bgp_debug_zebra(p)) {
- char buf[2][INET6_ADDRSTRLEN];
- zlog_debug("Tx IPv6 route delete VRF %u %s/%d",
- peer->bgp->vrf_id,
- inet_ntop(AF_INET6, &p->u.prefix6, buf[0],
- sizeof(buf[0])),
- p->prefixlen);
- }
- zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
- }
+ zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
}
struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, u_char type,
static void vnc_zebra_route_msg(struct prefix *p, int nhp_count, void *nhp_ary,
int add) /* 1 = add, 0 = del */
{
+ struct zapi_route api;
+ struct zapi_nexthop *api_nh;
+ int i;
+
if (!nhp_count) {
vnc_zlog_debug_verbose("%s: empty nexthop list, skipping",
__func__);
return;
}
- if (p->family == AF_INET) {
- struct zapi_route api;
- struct zapi_nexthop *api_nh;
- struct in_addr *nhp_ary4 = nhp_ary;
- int i;
-
- memset(&api, 0, sizeof(api));
- api.vrf_id = VRF_DEFAULT;
- api.type = ZEBRA_ROUTE_VNC;
- api.prefix = *p;
- api.safi = SAFI_UNICAST;
-
- /* Nexthops */
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
- api.nexthop_num = nhp_count;
- for (i = 0; i < nhp_count; i++) {
- api_nh = &api.nexthops[i];
+ memset(&api, 0, sizeof(api));
+ api.vrf_id = VRF_DEFAULT;
+ api.type = ZEBRA_ROUTE_VNC;
+ api.safi = SAFI_UNICAST;
+ api.prefix = *p;
+
+ /* Nexthops */
+ SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
+ api.nexthop_num = nhp_count;
+ for (i = 0; i < nhp_count; i++) {
+ struct in_addr *nhp_ary4;
+ struct in6_addr *nhp_ary6;
+
+ api_nh = &api.nexthops[i];
+ switch (p->family) {
+ case AF_INET:
+ nhp_ary4 = nhp_ary;
memcpy(&api_nh->gate.ipv4, &nhp_ary4[i],
sizeof(api_nh->gate.ipv4));
api_nh->type = NEXTHOP_TYPE_IPV4;
- }
-
- if (BGP_DEBUG(zebra, ZEBRA)) {
-
- char buf[INET_ADDRSTRLEN];
- vnc_zlog_debug_verbose(
- "%s: Zebra send: IPv4 route %s %s/%d, nhp_count=%d",
- __func__, (add ? "add" : "del"),
- inet_ntop(AF_INET, &p->u.prefix4, buf,
- sizeof(buf)),
- p->prefixlen, nhp_count);
- }
-
- zclient_route_send((add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE),
- zclient_vnc, &api);
-
- } else if (p->family == AF_INET6) {
- struct zapi_route api;
- struct zapi_nexthop *api_nh;
- struct in6_addr *nhp_ary6 = nhp_ary;
- int i;
-
- memset(&api, 0, sizeof(api));
- api.vrf_id = VRF_DEFAULT;
- api.type = ZEBRA_ROUTE_VNC;
- api.prefix = *p;
- api.safi = SAFI_UNICAST;
-
- /* Nexthops */
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
- api.nexthop_num = nhp_count;
- for (i = 0; i < nhp_count; i++) {
- api_nh = &api.nexthops[i];
+ break;
+ case AF_INET6:
+ nhp_ary6 = nhp_ary;
memcpy(&api_nh->gate.ipv6, &nhp_ary6[i],
sizeof(api_nh->gate.ipv6));
api_nh->type = NEXTHOP_TYPE_IPV6;
+ break;
}
+ }
- if (BGP_DEBUG(zebra, ZEBRA)) {
-
- char buf[INET6_ADDRSTRLEN];
- vnc_zlog_debug_verbose(
- "%s: Zebra send: IPv6 route %s %s/%d nhp_count=%d",
- __func__, (add ? "add" : "del"),
- inet_ntop(AF_INET6, &p->u.prefix6, buf,
- sizeof(buf)),
- p->prefixlen, nhp_count);
- }
+ if (BGP_DEBUG(zebra, ZEBRA)) {
+ char buf[PREFIX_STRLEN];
- zclient_route_send((add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE),
- zclient_vnc, &api);
- } else {
+ prefix2str(&api.prefix, buf, sizeof(buf));
vnc_zlog_debug_verbose(
- "%s: unknown prefix address family, skipping",
- __func__);
- return;
+ "%s: Zebra send: route %s %s, nhp_count=%d", __func__,
+ (add ? "add" : "del"), buf, nhp_count);
}
+
+ zclient_route_send((add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE),
+ zclient_vnc, &api);
}
projects / matthieu / frr.git / commitdiff