Merge pull request #5494 from opensourcerouting/mlag-module

[mirror_frr.git] / pimd / pim_util.c

diff --git a/pimd/pim_util.c b/pimd/pim_util.c
index 0e0a754993f8c697db6e5ac940650ec8d568d561..15bde256daf77ee3888507ad6442c7aa44e6c46d 100644 (file)
--- a/pimd/pim_util.c
+++ b/pimd/pim_util.c
@@ -1,27 +1,27 @@
 /*
-  PIM for Quagga
-  Copyright (C) 2008  Everton da Silva Marques
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; see the file COPYING; if not, write to the
-  Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-  MA 02110-1301 USA
-*/
+ * PIM for Quagga
+ * Copyright (C) 2008  Everton da Silva Marques
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
 
 #include <zebra.h>
 
 #include "log.h"
 #include "prefix.h"
+#include "plist.h"
 
 #include "pim_util.h"
 
@@ -108,13 +108,14 @@ int pim_is_group_224_0_0_0_24(struct in_addr group_addr)
        struct prefix group;
 
        if (first) {
-               str2prefix("224.0.0.0/24", &group_224);
+               if (!str2prefix("224.0.0.0/24", &group_224))
+                       return 0;
                first = 0;
        }
 
        group.family = AF_INET;
        group.u.prefix4 = group_addr;
-       group.prefixlen = 32;
+       group.prefixlen = IPV4_MAX_PREFIXLEN;
 
        return prefix_match(&group_224, &group);
 }
@@ -126,7 +127,8 @@ int pim_is_group_224_4(struct in_addr group_addr)
        struct prefix group;
 
        if (first) {
-               str2prefix("224.0.0.0/4", &group_all);
+               if (!str2prefix("224.0.0.0/4", &group_all))
+                       return 0;
                first = 0;
        }
 
@@ -136,3 +138,19 @@ int pim_is_group_224_4(struct in_addr group_addr)
 
        return prefix_match(&group_all, &group);
 }
+
+bool pim_is_group_filtered(struct pim_interface *pim_ifp, struct in_addr *grp)
+{
+       struct prefix grp_pfx;
+       struct prefix_list *pl;
+
+       if (!pim_ifp->boundary_oil_plist)
+               return false;
+
+       grp_pfx.family = AF_INET;
+       grp_pfx.prefixlen = 32;
+       grp_pfx.u.prefix4 = *grp;
+
+       pl = prefix_list_lookup(AFI_IP, pim_ifp->boundary_oil_plist);
+       return pl ? prefix_list_apply(pl, &grp_pfx) == PREFIX_DENY : false;
+}