1d03c0883SXin LI /* 2d03c0883SXin LI * Copyright (c) 2013 Romain Francoise <romain@orebokech.com> 3d03c0883SXin LI * 4d03c0883SXin LI * Redistribution and use in source and binary forms, with or without 5d03c0883SXin LI * modification, are permitted provided that the following conditions 6d03c0883SXin LI * are met: 7d03c0883SXin LI * 1. Redistributions of source code must retain the above copyright 8d03c0883SXin LI * notice, this list of conditions and the following disclaimer. 9d03c0883SXin LI * 2. Redistributions in binary form must reproduce the above copyright 10d03c0883SXin LI * notice, this list of conditions and the following disclaimer in the 11d03c0883SXin LI * documentation and/or other materials provided with the distribution. 12d03c0883SXin LI * 3. Neither the name of the project nor the names of its contributors 13d03c0883SXin LI * may be used to endorse or promote products derived from this software 14d03c0883SXin LI * without specific prior written permission. 15d03c0883SXin LI * 16d03c0883SXin LI * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17d03c0883SXin LI * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18d03c0883SXin LI * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19d03c0883SXin LI * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20d03c0883SXin LI * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21d03c0883SXin LI * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22d03c0883SXin LI * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23d03c0883SXin LI * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24d03c0883SXin LI * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25d03c0883SXin LI * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26d03c0883SXin LI * SUCH DAMAGE. 27d03c0883SXin LI */ 28d03c0883SXin LI 293340d773SGleb Smirnoff /* \summary: MS Network Load Balancing's (NLB) heartbeat printer */ 303340d773SGleb Smirnoff 31*ee67461eSJoseph Mingrone #include <config.h> 32d03c0883SXin LI 33*ee67461eSJoseph Mingrone #include "netdissect-stdinc.h" 34d03c0883SXin LI 353340d773SGleb Smirnoff #include "netdissect.h" 36d03c0883SXin LI #include "addrtoname.h" 37d03c0883SXin LI #include "extract.h" 38d03c0883SXin LI 39d03c0883SXin LI struct msnlb_heartbeat_pkt { 40*ee67461eSJoseph Mingrone nd_byte unknown1[4]; 41*ee67461eSJoseph Mingrone nd_byte unknown2[4]; 42*ee67461eSJoseph Mingrone nd_uint32_t host_prio; /* little-endian */ 43*ee67461eSJoseph Mingrone nd_ipv4 virtual_ip; 44*ee67461eSJoseph Mingrone nd_ipv4 host_ip; 45d03c0883SXin LI /* the protocol is undocumented so we ignore the rest */ 46d03c0883SXin LI }; 47d03c0883SXin LI 48d03c0883SXin LI void 493c602fabSXin LI msnlb_print(netdissect_options *ndo, const u_char *bp) 50d03c0883SXin LI { 51d03c0883SXin LI const struct msnlb_heartbeat_pkt *hb; 52d03c0883SXin LI 53*ee67461eSJoseph Mingrone ndo->ndo_protocol = "msnlb"; 543340d773SGleb Smirnoff hb = (const struct msnlb_heartbeat_pkt *)bp; 55d03c0883SXin LI 56*ee67461eSJoseph Mingrone ND_PRINT("MS NLB heartbeat"); 57*ee67461eSJoseph Mingrone ND_PRINT(", host priority: %u", GET_LE_U_4((hb->host_prio))); 58*ee67461eSJoseph Mingrone ND_PRINT(", cluster IP: %s", GET_IPADDR_STRING(hb->virtual_ip)); 59*ee67461eSJoseph Mingrone ND_PRINT(", host IP: %s", GET_IPADDR_STRING(hb->host_ip)); 60d03c0883SXin LI } 61