From: Donald Sharp <sharpd@cumulusnetworks.com>
Date: Thu, 1 Oct 2015 16:40:52 +0000 (-0400)
Subject: pimd: Notice when we receive a packet type we can't handle yet
X-Git-Tag: frr-2.0-rc1~842
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=566b83cf727bb45ccf6fb440b370d5767b1f2766;p=mirror%2Ffrr.git

pimd: Notice when we receive a packet type we can't handle yet

There are PIM packet types that have not been implemented yet.
Notice when we get one of those and safely do nothing.

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

diff --git a/pimd/pim_pim.c b/pimd/pim_pim.c
index cd8a29031f..66fc59be58 100644
--- a/pimd/pim_pim.c
+++ b/pimd/pim_pim.c
@@ -206,6 +206,20 @@ int pim_pim_packet(struct interface *ifp, uint8_t *buf, size_t len)
 	       pim_version, pim_type, pim_msg_len, checksum);
   }
 
+  if (pim_type == PIM_MSG_TYPE_REGISTER  ||
+      pim_type == PIM_MSG_TYPE_REG_STOP  ||
+      pim_type == PIM_MSG_TYPE_BOOTSTRAP ||
+      pim_type == PIM_MSG_TYPE_GRAFT     ||
+      pim_type == PIM_MSG_TYPE_GRAFT_ACK ||
+      pim_type == PIM_MSG_TYPE_CANDIDATE)
+    {
+      if (PIM_DEBUG_PIM_PACKETS) {
+	zlog_debug("Recv PIM packet type %d which is not currently understood",
+		   pim_type);
+      }
+      return -1;
+    }
+
   if (pim_type == PIM_MSG_TYPE_HELLO) {
     int result = pim_hello_recv(ifp,
                  ip_hdr->ip_src,