mirror of
https://github.com/the-tcpdump-group/tcpdump.git
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da20bc56d6
Now all the macros have a name meaning a count in bytes. With _S_: signed, _U_: unsigned e.g.: EXTRACT_BE_32BITS -> EXTRACT_BE_U_4 EXTRACT_LE_32BITS -> EXTRACT_LE_U_4 ... EXTRACT_BE_INT32 -> EXTRACT_BE_S_4 and have: EXTRACT_8BITS -> EXTRACT_U_1 EXTRACT_INT8 -> EXTRACT_S_1
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
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* Copyright (c) 2013 Romain Francoise <romain@orebokech.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* \summary: MS Network Load Balancing's (NLB) heartbeat printer */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <netdissect-stdinc.h>
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#include "netdissect.h"
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#include "addrtoname.h"
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#include "extract.h"
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struct msnlb_heartbeat_pkt {
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uint32_t unknown1;
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uint32_t unknown2;
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uint32_t host_prio; /* little-endian */
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uint32_t virtual_ip;
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uint32_t host_ip;
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/* the protocol is undocumented so we ignore the rest */
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};
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void
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msnlb_print(netdissect_options *ndo, const u_char *bp)
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{
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const struct msnlb_heartbeat_pkt *hb;
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hb = (const struct msnlb_heartbeat_pkt *)bp;
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ND_TCHECK(*hb);
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ND_PRINT((ndo, "MS NLB heartbeat, host priority: %u,",
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EXTRACT_LE_U_4(&(hb->host_prio))));
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ND_PRINT((ndo, " cluster IP: %s,", ipaddr_string(ndo, &(hb->virtual_ip))));
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ND_PRINT((ndo, " host IP: %s", ipaddr_string(ndo, &(hb->host_ip))));
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return;
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trunc:
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ND_PRINT((ndo, "[|MS NLB]"));
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}
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