1 files changed, 62 insertions, 0 deletions
diff --git a/print-msnlb.c b/print-msnlb.c
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+++ b/print-msnlb.c
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+/*
+ * Copyright (c) 2013 Romain Francoise <romain@orebokech.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* \summary: MS Network Load Balancing's (NLB) heartbeat printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+struct msnlb_heartbeat_pkt {
+	nd_byte     unknown1[4];
+	nd_byte     unknown2[4];
+	nd_uint32_t host_prio;	/* little-endian */
+	nd_ipv4     virtual_ip;
+	nd_ipv4     host_ip;
+	/* the protocol is undocumented so we ignore the rest */
+};
+
+void
+msnlb_print(netdissect_options *ndo, const u_char *bp)
+{
+	const struct msnlb_heartbeat_pkt *hb;
+
+	ndo->ndo_protocol = "msnlb";
+	hb = (const struct msnlb_heartbeat_pkt *)bp;
+
+	ND_PRINT("MS NLB heartbeat");
+	ND_PRINT(", host priority: %u", GET_LE_U_4((hb->host_prio)));
+	ND_PRINT(", cluster IP: %s", GET_IPADDR_STRING(hb->virtual_ip));
+	ND_PRINT(", host IP: %s", GET_IPADDR_STRING(hb->host_ip));
+}