char ifname[INTERFACE_NAMSIZ + 1];
short ifnlen = 0;
struct nexthop nh;
+ struct prefix p;
+ ifindex_t ifindex = 0;
+ afi_t afi;
zebra_flags = 0;
nh.bh_type = BLACKHOLE_NULL;
}
- if (dest.sa.sa_family == AF_INET) {
- struct prefix p;
+ /*
+ * Ignore our own messages.
+ */
+ if (rtm->rtm_type != RTM_GET && rtm->rtm_pid == pid)
+ return;
+ if (dest.sa.sa_family == AF_INET) {
+ afi = AFI_IP;
p.family = AF_INET;
p.u.prefix4 = dest.sin.sin_addr;
if (flags & RTF_HOST)
else
p.prefixlen = ip_masklen(mask.sin.sin_addr);
- /* Catch self originated messages and match them against our
- * current RIB.
- * At the same time, ignore unconfirmed messages, they should be
- * tracked
- * by rtm_write() and kernel_rtm_ipv4().
- */
- if (rtm->rtm_type != RTM_GET && rtm->rtm_pid == pid) {
- char buf[PREFIX_STRLEN], gate_buf[INET_ADDRSTRLEN];
- int ret;
- if (!IS_ZEBRA_DEBUG_RIB)
- return;
- ret = rib_lookup_ipv4_route((struct prefix_ipv4 *)&p,
- &gate, VRF_DEFAULT);
- prefix2str(&p, buf, sizeof(buf));
- switch (rtm->rtm_type) {
- case RTM_ADD:
- case RTM_GET:
- case RTM_CHANGE:
- /* The kernel notifies us about a new route in
- FIB created by us.
- Do we have a correspondent entry in our RIB?
- */
- switch (ret) {
- case ZEBRA_RIB_NOTFOUND:
- zlog_debug(
- "%s: %s %s: desync: RR isn't yet in RIB, while already in FIB",
- __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf);
- break;
- case ZEBRA_RIB_FOUND_CONNECTED:
- case ZEBRA_RIB_FOUND_NOGATE:
- inet_ntop(AF_INET, &gate.sin.sin_addr,
- gate_buf, INET_ADDRSTRLEN);
- zlog_debug(
- "%s: %s %s: desync: RR is in RIB, but gate differs (ours is %s)",
- __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf, gate_buf);
- break;
- case ZEBRA_RIB_FOUND_EXACT: /* RIB RR == FIB RR
- */
- zlog_debug(
- "%s: %s %s: done Ok", __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf);
- rib_lookup_and_dump(
- (struct prefix_ipv4 *)&p,
- VRF_DEFAULT);
- return;
- break;
- }
- break;
- case RTM_DELETE:
- /* The kernel notifies us about a route deleted
- by us. Do we still
- have it in the RIB? Do we have anything
- instead? */
- switch (ret) {
- case ZEBRA_RIB_FOUND_EXACT:
- zlog_debug(
- "%s: %s %s: desync: RR is still in RIB, while already not in FIB",
- __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf);
- rib_lookup_and_dump(
- (struct prefix_ipv4 *)&p,
- VRF_DEFAULT);
- break;
- case ZEBRA_RIB_FOUND_CONNECTED:
- case ZEBRA_RIB_FOUND_NOGATE:
- zlog_debug(
- "%s: %s %s: desync: RR is still in RIB, plus gate differs",
- __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf);
- rib_lookup_and_dump(
- (struct prefix_ipv4 *)&p,
- VRF_DEFAULT);
- break;
- case ZEBRA_RIB_NOTFOUND: /* RIB RR == FIB RR */
- zlog_debug(
- "%s: %s %s: done Ok", __func__,
- lookup_msg(rtm_type_str,
- rtm->rtm_type, NULL),
- buf);
- rib_lookup_and_dump(
- (struct prefix_ipv4 *)&p,
- VRF_DEFAULT);
- return;
- break;
- }
- break;
- default:
- zlog_debug(
- "%s: %s: warning: loopback RTM of type %s received",
- __func__, buf,
- lookup_msg(rtm_type_str, rtm->rtm_type,
- NULL));
- }
- return;
- }
-
- /* Change, delete the old prefix, we have no further information
- * to specify the route really
- */
- if (rtm->rtm_type == RTM_CHANGE)
- rib_delete(AFI_IP, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- NULL, 0, 0, 0, true);
-
if (!nh.type) {
nh.type = NEXTHOP_TYPE_IPV4;
nh.gate.ipv4 = gate.sin.sin_addr;
}
-
- if (rtm->rtm_type == RTM_GET || rtm->rtm_type == RTM_ADD
- || rtm->rtm_type == RTM_CHANGE)
- rib_add(AFI_IP, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- &nh, 0, 0, 0, 0, 0);
- else
- rib_delete(AFI_IP, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- &nh, 0, 0, 0, true);
- }
- if (dest.sa.sa_family == AF_INET6) {
- /* One day we might have a debug section here like one in the
- * IPv4 case above. Just ignore own messages at the moment.
- */
- if (rtm->rtm_type != RTM_GET && rtm->rtm_pid == pid)
- return;
- struct prefix p;
- ifindex_t ifindex = 0;
-
+ } else if (dest.sa.sa_family == AF_INET6) {
+ afi = AFI_IP6;
p.family = AF_INET6;
p.u.prefix6 = dest.sin6.sin6_addr;
if (flags & RTF_HOST)
}
#endif /* KAME */
- /* CHANGE: delete the old prefix, we have no further information
- * to specify the route really
- */
- if (rtm->rtm_type == RTM_CHANGE)
- rib_delete(AFI_IP6, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- NULL, 0, 0, 0, true);
-
if (!nh.type) {
nh.type = ifindex ? NEXTHOP_TYPE_IPV6_IFINDEX
: NEXTHOP_TYPE_IPV6;
nh.gate.ipv6 = gate.sin6.sin6_addr;
nh.ifindex = ifindex;
}
+ } else
+ return;
- if (rtm->rtm_type == RTM_GET || rtm->rtm_type == RTM_ADD
- || rtm->rtm_type == RTM_CHANGE)
- rib_add(AFI_IP6, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- &nh, 0, 0, 0, 0, 0);
- else
- rib_delete(AFI_IP6, SAFI_UNICAST, VRF_DEFAULT,
- ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, NULL,
- &nh, 0, 0, 0, true);
- }
+ /*
+ * CHANGE: delete the old prefix, we have no further information
+ * to specify the route really
+ */
+ if (rtm->rtm_type == RTM_CHANGE)
+ rib_delete(afi, SAFI_UNICAST, VRF_DEFAULT, ZEBRA_ROUTE_KERNEL,
+ 0, zebra_flags, &p, NULL, NULL, 0, 0, 0, true);
+ if (rtm->rtm_type == RTM_GET || rtm->rtm_type == RTM_ADD
+ || rtm->rtm_type == RTM_CHANGE)
+ rib_add(afi, SAFI_UNICAST, VRF_DEFAULT, ZEBRA_ROUTE_KERNEL, 0,
+ zebra_flags, &p, NULL, &nh, 0, 0, 0, 0, 0);
+ else
+ rib_delete(afi, SAFI_UNICAST, VRF_DEFAULT, ZEBRA_ROUTE_KERNEL,
+ 0, zebra_flags, &p, NULL, &nh, 0, 0, 0, true);
}
/* Interface function for the kernel routing table updates. Support
projects / mirror_frr.git / blobdiff