zebra: Remove unused variable.

Remove the rtnh variable since it is unused.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

diff --git a/zebra/kernel_netlink.c b/zebra/kernel_netlink.c
index 9f9a62f384654bd4bf08fe5ce8405539cd6b2779..70b56b31b64adff66ad4247d56f3e24567865109 100644 (file)
--- a/zebra/kernel_netlink.c
+++ b/zebra/kernel_netlink.c
@@ -91,6 +91,7 @@ static const struct message rtproto_str[] = {
 #ifdef RTPROT_BIRD
   {RTPROT_BIRD,     "BIRD"},
 #endif /* RTPROT_BIRD */
+  {RTPROT_MROUTED,  "mroute"},
   {0,               NULL}
 };
 
@@ -718,7 +719,8 @@ kernel_init (struct zebra_ns *zns)
 
   /* Initialize netlink sockets */
   groups = RTMGRP_LINK | RTMGRP_IPV4_ROUTE | RTMGRP_IPV4_IFADDR |
-          RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR;
+    RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR |
+    RTMGRP_IPV4_MROUTE;
 
   snprintf (zns->netlink.name, sizeof (zns->netlink.name),
            "netlink-listen (NS %u)", zns->ns_id);

diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 2e7f336d20d23fe91be7e796bfd86467939e6f52..4e87ab9fa63f4d21243b58d8b1be6bda728e27e7 100644 (file)
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -303,9 +303,17 @@ netlink_routing_table (struct sockaddr_nl *snl, struct nlmsghdr *h,
   return 0;
 }
 
+static const struct message family_str[] = {
+  {AF_INET,           "ipv4"},
+  {AF_INET6,          "ipv6"},
+  {RTNL_FAMILY_IPMR,  "ipv4MR"},
+  {RTNL_FAMILY_IP6MR, "ipv6MR"},
+  {0,                 NULL},
+};
+
 /* Routing information change from the kernel. */
-int
-netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
+static int
+netlink_route_change_read_unicast (struct sockaddr_nl *snl, struct nlmsghdr *h,
                       ns_id_t ns_id)
 {
   int len;
@@ -327,35 +335,7 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
 
   rtm = NLMSG_DATA (h);
 
-  if (!(h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
-    {
-      /* If this is not route add/delete message print warning. */
-      zlog_warn ("Kernel message: %d", h->nlmsg_type);
-      return 0;
-    }
-
-  /* Connected route. */
-  if (IS_ZEBRA_DEBUG_KERNEL)
-    zlog_debug ("%s %s %s proto %s",
-               h->nlmsg_type ==
-               RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
-               rtm->rtm_family == AF_INET ? "ipv4" : "ipv6",
-               rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
-               nl_rtproto_to_str (rtm->rtm_protocol));
-
-  if (rtm->rtm_type != RTN_UNICAST)
-    {
-      return 0;
-    }
-
-  /* We don't care about change notifications for the MPLS table. */
-  /* TODO: Revisit this. */
-  if (rtm->rtm_family == AF_MPLS)
-    return 0;
-
   len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
-  if (len < 0)
-    return -1;
 
   memset (tb, 0, sizeof tb);
   netlink_parse_rtattr (tb, RTA_MAX, RTM_RTA (rtm), len);
@@ -544,6 +524,76 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
   return 0;
 }
 
+static int
+netlink_route_change_read_multicast (struct sockaddr_nl *snl, struct nlmsghdr *h,
+                                    ns_id_t ns_id)
+{
+  int len;
+  struct rtmsg *rtm;
+  struct rtattr *tb[RTA_MAX + 1];
+
+  rtm = NLMSG_DATA (h);
+
+  len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
+
+  memset (tb, 0, sizeof tb);
+  netlink_parse_rtattr (tb, RTA_MAX, RTM_RTA (rtm), len);
+
+  return 0;
+}
+
+int
+netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
+                     ns_id_t ns_id)
+{
+  int len;
+  vrf_id_t vrf_id = ns_id;
+  struct rtmsg *rtm;
+
+  rtm = NLMSG_DATA (h);
+
+  if (!(h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
+    {
+      /* If this is not route add/delete message print warning. */
+      zlog_warn ("Kernel message: %d vrf %u\n", h->nlmsg_type, vrf_id);
+      return 0;
+    }
+
+  /* Connected route. */
+  if (IS_ZEBRA_DEBUG_KERNEL)
+    zlog_debug ("%s %s %s proto %s vrf %u",
+               h->nlmsg_type ==
+               RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
+               lookup (family_str, rtm->rtm_family),
+               rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
+               nl_rtproto_to_str (rtm->rtm_protocol),
+               vrf_id);
+
+  /* We don't care about change notifications for the MPLS table. */
+  /* TODO: Revisit this. */
+  if (rtm->rtm_family == AF_MPLS)
+    return 0;
+
+  len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
+  if (len < 0)
+    return -1;
+
+  switch (rtm->rtm_type)
+    {
+    case RTN_UNICAST:
+      netlink_route_change_read_unicast (snl, h, ns_id);
+      break;
+    case RTN_MULTICAST:
+      netlink_route_change_read_multicast (snl, h, ns_id);
+      break;
+    default:
+      return 0;
+      break;
+    }
+
+  return 0;
+}
+
 /* Routing table read function using netlink interface.  Only called
    bootstrap time. */
 int