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Current Path: /usr/src/contrib/tcpdump

📁 ..
📄 CHANGES(57.87 KB)
📄 CONTRIBUTING(5.93 KB)
📄 CREDITS(14.57 KB)
📄 INSTALL.txt(5.25 KB)
📄 LICENSE(873 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(9.96 KB)
📄 PLATFORMS(567 B)
📄 README(9.04 KB)
📄 README.md(9.04 KB)
📄 VERSION(6 B)
📄 addrtoname.c(33.19 KB)
📄 addrtoname.h(2.78 KB)
📄 addrtostr.c(5.64 KB)
📄 addrtostr.h(2.03 KB)
📄 af.c(1.96 KB)
📄 af.h(1.81 KB)
📄 ah.h(2.34 KB)
📄 appletalk.h(4.06 KB)
📄 ascii_strcasecmp.c(3.5 KB)
📄 ascii_strcasecmp.h(1.49 KB)
📄 atime.awk(529 B)
📄 atm.h(1.14 KB)
📄 bpf_dump.c(1.9 KB)
📄 chdlc.h(1.31 KB)
📄 checksum.c(5.25 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(11.19 KB)
📄 config.sub(34.93 KB)
📄 configure(255.88 KB)
📄 configure.ac(25.05 KB)
📄 configure.in(25.66 KB)
📄 cpack.c(3.92 KB)
📄 cpack.h(2.37 KB)
📄 ether.h(2.34 KB)
📄 ethertype.h(5.58 KB)
📄 extract.h(11.48 KB)
📄 funcattrs.h(4.42 KB)
📄 getopt_long.h(2.52 KB)
📄 gmpls.c(5.82 KB)
📄 gmpls.h(1.38 KB)
📄 gmt2local.c(2.01 KB)
📄 gmt2local.h(1.21 KB)
📄 in_cksum.c(6.44 KB)
📄 install-sh(5.45 KB)
📄 interface.h(2.29 KB)
📄 ip.h(5.75 KB)
📄 ip6.h(7.6 KB)
📄 ipproto.c(16.49 KB)
📄 ipproto.h(4.72 KB)
📄 l2vpn.c(3.36 KB)
📄 l2vpn.h(781 B)
📁 lbl
📄 llc.h(3.72 KB)
📄 machdep.c(2.58 KB)
📄 machdep.h(1.24 KB)
📄 makemib(6.41 KB)
📄 mib.h(26.33 KB)
📁 missing
📄 mkdep(2.43 KB)
📄 mpls.h(1.93 KB)
📄 nameser.h(10.8 KB)
📄 netdissect-stdinc.h(9.93 KB)
📄 netdissect.c(3.38 KB)
📄 netdissect.h(30.13 KB)
📄 nfs.h(13.37 KB)
📄 nfsfh.h(2.57 KB)
📄 nlpid.c(1.27 KB)
📄 nlpid.h(1.3 KB)
📄 openflow.h(2.14 KB)
📄 ospf.h(10.21 KB)
📄 oui.c(3.83 KB)
📄 oui.h(4.06 KB)
📄 packetdat.awk(1.39 KB)
📄 parsenfsfh.c(12.87 KB)
📄 pcap-missing.h(1.8 KB)
📄 pcap_dump_ftell.c(1.29 KB)
📄 ppp.h(3.07 KB)
📄 print-802_11.c(91.47 KB)
📄 print-802_15_4.c(5.5 KB)
📄 print-ah.c(2.02 KB)
📄 print-ahcp.c(10.73 KB)
📄 print-aodv.c(15.98 KB)
📄 print-aoe.c(11.13 KB)
📄 print-ap1394.c(4 KB)
📄 print-arcnet.c(8.83 KB)
📄 print-arp.c(14.57 KB)
📄 print-ascii.c(6.23 KB)
📄 print-atalk.c(16.76 KB)
📄 print-atm.c(16.81 KB)
📄 print-babel.c(23.79 KB)
📄 print-beep.c(1.71 KB)
📄 print-bfd.c(16.5 KB)
📄 print-bgp.c(99.77 KB)
📄 print-bootp.c(30.07 KB)
📄 print-bt.c(2.21 KB)
📄 print-calm-fast.c(1.81 KB)
📄 print-carp.c(2.43 KB)
📄 print-cdp.c(11.16 KB)
📄 print-cfm.c(24.19 KB)
📄 print-chdlc.c(5.88 KB)
📄 print-cip.c(2.5 KB)
📄 print-cnfp.c(13.69 KB)
📄 print-dccp.c(17.75 KB)
📄 print-decnet.c(37.63 KB)
📄 print-dhcp6.c(23.22 KB)
📄 print-domain.c(18.44 KB)
📄 print-dtp.c(3.03 KB)
📄 print-dvmrp.c(8.98 KB)
📄 print-eap.c(9.26 KB)
📄 print-egp.c(8.69 KB)
📄 print-eigrp.c(19.49 KB)
📄 print-enc.c(4.2 KB)
📄 print-esp.c(21.46 KB)
📄 print-ether.c(12.91 KB)
📄 print-fddi.c(10.51 KB)
📄 print-forces.c(45.01 KB)
📄 print-fr.c(31.99 KB)
📄 print-frag6.c(2.36 KB)
📄 print-ftp.c(973 B)
📄 print-geneve.c(6.13 KB)
📄 print-geonet.c(6.72 KB)
📄 print-gre.c(9.72 KB)
📄 print-hncp.c(26.39 KB)
📄 print-hsrp.c(4.57 KB)
📄 print-http.c(1.51 KB)
📄 print-icmp.c(22.7 KB)
📄 print-icmp6.c(59.81 KB)
📄 print-igmp.c(10.05 KB)
📄 print-igrp.c(4.64 KB)
📄 print-ip.c(17.04 KB)
📄 print-ip6.c(10.57 KB)
📄 print-ip6opts.c(5.53 KB)
📄 print-ipcomp.c(2.32 KB)
📄 print-ipfc.c(4.41 KB)
📄 print-ipnet.c(2.78 KB)
📄 print-ipx.c(6.42 KB)
📄 print-isakmp.c(81.72 KB)
📄 print-isoclns.c(107.61 KB)
📄 print-juniper.c(48.42 KB)
📄 print-krb.c(6.26 KB)
📄 print-l2tp.c(23.94 KB)
📄 print-lane.c(3.04 KB)
📄 print-ldp.c(24.35 KB)
📄 print-lisp.c(15.23 KB)
📄 print-llc.c(16.68 KB)
📄 print-lldp.c(57.26 KB)
📄 print-lmp.c(38.11 KB)
📄 print-loopback.c(3.63 KB)
📄 print-lspping.c(51.64 KB)
📄 print-lwapp.c(13.01 KB)
📄 print-lwres.c(14.08 KB)
📄 print-m3ua.c(10.92 KB)
📄 print-medsa.c(5.57 KB)
📄 print-mobile.c(3.28 KB)
📄 print-mobility.c(9.74 KB)
📄 print-mpcp.c(7.87 KB)
📄 print-mpls.c(5.31 KB)
📄 print-mptcp.c(13.68 KB)
📄 print-msdp.c(2.69 KB)
📄 print-msnlb.c(2.39 KB)
📄 print-nflog.c(4.4 KB)
📄 print-nfs.c(42.84 KB)
📄 print-nsh.c(5.39 KB)
📄 print-ntp.c(13.34 KB)
📄 print-null.c(4.01 KB)
📄 print-olsr.c(23.42 KB)
📄 print-openflow-1.0.c(76.63 KB)
📄 print-openflow.c(4.77 KB)
📄 print-ospf.c(39.49 KB)
📄 print-ospf6.c(29.86 KB)
📄 print-otv.c(2.1 KB)
📄 print-pflog.c(4.86 KB)
📄 print-pfsync.c(12.53 KB)
📄 print-pgm.c(22.17 KB)
📄 print-pim.c(32.59 KB)
📄 print-pktap.c(5.18 KB)
📄 print-ppi.c(2.68 KB)
📄 print-ppp.c(46.16 KB)
📄 print-pppoe.c(5.65 KB)
📄 print-pptp.c(25.9 KB)
📄 print-radius.c(35.1 KB)
📄 print-raw.c(1.52 KB)
📄 print-resp.c(16.5 KB)
📄 print-rip.c(9.19 KB)
📄 print-ripng.c(6 KB)
📄 print-rpki-rtr.c(10.83 KB)
📄 print-rrcp.c(4.56 KB)
📄 print-rsvp.c(78.61 KB)
📄 print-rt6.c(2.66 KB)
📄 print-rtsp.c(1.16 KB)
📄 print-rx.c(66.92 KB)
📄 print-sctp.c(23.13 KB)
📄 print-sflow.c(31.91 KB)
📄 print-sip.c(1.29 KB)
📄 print-sl.c(6.95 KB)
📄 print-sll.c(9.2 KB)
📄 print-slow.c(25.17 KB)
📄 print-smb.c(43.19 KB)
📄 print-smtp.c(983 B)
📄 print-snmp.c(43.17 KB)
📄 print-stp.c(17.18 KB)
📄 print-sunatm.c(3.27 KB)
📄 print-sunrpc.c(7.85 KB)
📄 print-symantec.c(3.78 KB)
📄 print-syslog.c(3.96 KB)
📄 print-tcp.c(35.84 KB)
📄 print-telnet.c(15.02 KB)
📄 print-tftp.c(5.2 KB)
📄 print-timed.c(4.74 KB)
📄 print-tipc.c(11.53 KB)
📄 print-token.c(7.96 KB)
📄 print-udld.c(5.47 KB)
📄 print-udp.c(21.28 KB)
📄 print-usb.c(4.18 KB)
📄 print-vjc.c(4.45 KB)
📄 print-vqp.c(6.8 KB)
📄 print-vrrp.c(6.37 KB)
📄 print-vtp.c(13.56 KB)
📄 print-vxlan-gpe.c(3.46 KB)
📄 print-vxlan.c(2.21 KB)
📄 print-wb.c(10.93 KB)
📄 print-zephyr.c(8.03 KB)
📄 print-zeromq.c(7.5 KB)
📄 print.c(11.54 KB)
📄 print.h(1.78 KB)
📄 rpc_auth.h(2.77 KB)
📄 rpc_msg.h(3.19 KB)
📄 rpl.h(4.88 KB)
📄 send-ack.awk(1.56 KB)
📄 setsignal.c(3.27 KB)
📄 setsignal.h(1.24 KB)
📄 signature.c(5.58 KB)
📄 signature.h(1.12 KB)
📄 slcompress.h(3.55 KB)
📄 smb.h(5.38 KB)
📄 smbutil.c(63.88 KB)
📄 stime.awk(567 B)
📄 strtoaddr.c(5.34 KB)
📄 strtoaddr.h(992 B)
📄 tcp.h(5.02 KB)
📄 tcpdump.1.in(60.82 KB)
📄 tcpdump.c(69.76 KB)
📄 timeval-operations.h(3.19 KB)
📄 udp.h(8.25 KB)
📄 util-print.c(23.75 KB)
📄 vfprintf.c(1.62 KB)

Editing: print-aoe.c

/*
 * Copyright (c) 2014 The TCPDUMP project
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
 * COPYRIGHT HOLDER 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: ATA over Ethernet (AoE) protocol printer */

/* specification: http://brantleycoilecompany.com/AoEr11.pdf */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <netdissect-stdinc.h>

#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "ether.h"

static const char tstr[] = " [|aoe]";

#define AOE_V1 1
#define ATA_SECTOR_SIZE 512

#define AOEV1_CMD_ISSUE_ATA_COMMAND        0
#define AOEV1_CMD_QUERY_CONFIG_INFORMATION 1
#define AOEV1_CMD_MAC_MASK_LIST            2
#define AOEV1_CMD_RESERVE_RELEASE          3

static const struct tok cmdcode_str[] = {
	{ AOEV1_CMD_ISSUE_ATA_COMMAND,        "Issue ATA Command"        },
	{ AOEV1_CMD_QUERY_CONFIG_INFORMATION, "Query Config Information" },
	{ AOEV1_CMD_MAC_MASK_LIST,            "MAC Mask List"            },
	{ AOEV1_CMD_RESERVE_RELEASE,          "Reserve/Release"          },
	{ 0, NULL }
};

#define AOEV1_COMMON_HDR_LEN    10U /* up to but w/o Arg                */
#define AOEV1_ISSUE_ARG_LEN     12U /* up to but w/o Data               */
#define AOEV1_QUERY_ARG_LEN      8U /* up to but w/o Config String      */
#define AOEV1_MAC_ARG_LEN        4U /* up to but w/o Directive 0        */
#define AOEV1_RESERVE_ARG_LEN    2U /* up to but w/o Ethernet address 0 */
#define AOEV1_MAX_CONFSTR_LEN 1024U

#define AOEV1_FLAG_R 0x08
#define AOEV1_FLAG_E 0x04

static const struct tok aoev1_flag_str[] = {
	{ AOEV1_FLAG_R, "Response" },
	{ AOEV1_FLAG_E, "Error"    },
	{ 0x02,         "MBZ-0x02" },
	{ 0x01,         "MBZ-0x01" },
	{ 0, NULL }
};

static const struct tok aoev1_errcode_str[] = {
	{ 1, "Unrecognized command code" },
	{ 2, "Bad argument parameter"    },
	{ 3, "Device unavailable"        },
	{ 4, "Config string present"     },
	{ 5, "Unsupported version"       },
	{ 6, "Target is reserved"        },
	{ 0, NULL }
};

#define AOEV1_AFLAG_E 0x40
#define AOEV1_AFLAG_D 0x10
#define AOEV1_AFLAG_A 0x02
#define AOEV1_AFLAG_W 0x01

static const struct tok aoev1_aflag_str[] = {
	{ 0x08,          "MBZ-0x08" },
	{ AOEV1_AFLAG_E, "Ext48"    },
	{ 0x06,          "MBZ-0x06" },
	{ AOEV1_AFLAG_D, "Device"   },
	{ 0x04,          "MBZ-0x04" },
	{ 0x03,          "MBZ-0x03" },
	{ AOEV1_AFLAG_A, "Async"    },
	{ AOEV1_AFLAG_W, "Write"    },
	{ 0, NULL }
};

static const struct tok aoev1_ccmd_str[] = {
	{ 0, "read config string"        },
	{ 1, "test config string"        },
	{ 2, "test config string prefix" },
	{ 3, "set config string"         },
	{ 4, "force set config string"   },
	{ 0, NULL }
};

static const struct tok aoev1_mcmd_str[] = {
	{ 0, "Read Mac Mask List" },
	{ 1, "Edit Mac Mask List" },
	{ 0, NULL }
};

static const struct tok aoev1_merror_str[] = {
	{ 1, "Unspecified Error"  },
	{ 2, "Bad DCmd directive" },
	{ 3, "Mask list full"     },
	{ 0, NULL }
};

static const struct tok aoev1_dcmd_str[] = {
	{ 0, "No Directive"                      },
	{ 1, "Add mac address to mask list"      },
	{ 2, "Delete mac address from mask list" },
	{ 0, NULL }
};

static const struct tok aoev1_rcmd_str[] = {
	{ 0, "Read reserve list"      },
	{ 1, "Set reserve list"       },
	{ 2, "Force set reserve list" },
	{ 0, NULL }
};

static void
aoev1_issue_print(netdissect_options *ndo,
                  const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;

if (len < AOEV1_ISSUE_ARG_LEN)
		goto invalid;
	/* AFlags */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, "\n\tAFlags: [%s]", bittok2str(aoev1_aflag_str, "none", *cp)));
	cp += 1;
	/* Err/Feature */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Err/Feature: %u", *cp));
	cp += 1;
	/* Sector Count (not correlated with the length) */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Sector Count: %u", *cp));
	cp += 1;
	/* Cmd/Status */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Cmd/Status: %u", *cp));
	cp += 1;
	/* lba0 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, "\n\tlba0: %u", *cp));
	cp += 1;
	/* lba1 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", lba1: %u", *cp));
	cp += 1;
	/* lba2 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", lba2: %u", *cp));
	cp += 1;
	/* lba3 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", lba3: %u", *cp));
	cp += 1;
	/* lba4 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", lba4: %u", *cp));
	cp += 1;
	/* lba5 */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", lba5: %u", *cp));
	cp += 1;
	/* Reserved */
	ND_TCHECK2(*cp, 2);
	cp += 2;
	/* Data */
	if (len > AOEV1_ISSUE_ARG_LEN)
		ND_PRINT((ndo, "\n\tData: %u bytes", len - AOEV1_ISSUE_ARG_LEN));
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

static void
aoev1_query_print(netdissect_options *ndo,
                  const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint16_t cslen;

if (len < AOEV1_QUERY_ARG_LEN)
		goto invalid;
	/* Buffer Count */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, "\n\tBuffer Count: %u", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Firmware Version */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, ", Firmware Version: %u", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Sector Count */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Sector Count: %u", *cp));
	cp += 1;
	/* AoE/CCmd */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", AoE: %u, CCmd: %s", (*cp & 0xF0) >> 4,
	          tok2str(aoev1_ccmd_str, "Unknown (0x02x)", *cp & 0x0F)));
	cp += 1;
	/* Config String Length */
	ND_TCHECK2(*cp, 2);
	cslen = EXTRACT_16BITS(cp);
	cp += 2;
	if (cslen > AOEV1_MAX_CONFSTR_LEN || AOEV1_QUERY_ARG_LEN + cslen > len)
		goto invalid;
	/* Config String */
	ND_TCHECK2(*cp, cslen);
	if (cslen) {
		ND_PRINT((ndo, "\n\tConfig String (length %u): ", cslen));
		if (fn_printn(ndo, cp, cslen, ndo->ndo_snapend))
			goto trunc;
	}
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

static void
aoev1_mac_print(netdissect_options *ndo,
                const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint8_t dircount, i;

if (len < AOEV1_MAC_ARG_LEN)
		goto invalid;
	/* Reserved */
	ND_TCHECK2(*cp, 1);
	cp += 1;
	/* MCmd */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, "\n\tMCmd: %s", tok2str(aoev1_mcmd_str, "Unknown (0x%02x)", *cp)));
	cp += 1;
	/* MError */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", MError: %s", tok2str(aoev1_merror_str, "Unknown (0x%02x)", *cp)));
	cp += 1;
	/* Dir Count */
	ND_TCHECK2(*cp, 1);
	dircount = *cp;
	cp += 1;
	ND_PRINT((ndo, ", Dir Count: %u", dircount));
	if (AOEV1_MAC_ARG_LEN + dircount * 8 > len)
		goto invalid;
	/* directives */
	for (i = 0; i < dircount; i++) {
		/* Reserved */
		ND_TCHECK2(*cp, 1);
		cp += 1;
		/* DCmd */
		ND_TCHECK2(*cp, 1);
		ND_PRINT((ndo, "\n\t DCmd: %s", tok2str(aoev1_dcmd_str, "Unknown (0x%02x)", *cp)));
		cp += 1;
		/* Ethernet Address */
		ND_TCHECK2(*cp, ETHER_ADDR_LEN);
		ND_PRINT((ndo, ", Ethernet Address: %s", etheraddr_string(ndo, cp)));
		cp += ETHER_ADDR_LEN;
	}
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

static void
aoev1_reserve_print(netdissect_options *ndo,
                    const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint8_t nmacs, i;

if (len < AOEV1_RESERVE_ARG_LEN || (len - AOEV1_RESERVE_ARG_LEN) % ETHER_ADDR_LEN)
		goto invalid;
	/* RCmd */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, "\n\tRCmd: %s", tok2str(aoev1_rcmd_str, "Unknown (0x%02x)", *cp)));
	cp += 1;
	/* NMacs (correlated with the length) */
	ND_TCHECK2(*cp, 1);
	nmacs = *cp;
	cp += 1;
	ND_PRINT((ndo, ", NMacs: %u", nmacs));
	if (AOEV1_RESERVE_ARG_LEN + nmacs * ETHER_ADDR_LEN != len)
		goto invalid;
	/* addresses */
	for (i = 0; i < nmacs; i++) {
		ND_TCHECK2(*cp, ETHER_ADDR_LEN);
		ND_PRINT((ndo, "\n\tEthernet Address %u: %s", i, etheraddr_string(ndo, cp)));
		cp += ETHER_ADDR_LEN;
	}
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

/* cp points to the Ver/Flags octet */
static void
aoev1_print(netdissect_options *ndo,
            const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint8_t flags, command;
	void (*cmd_decoder)(netdissect_options *, const u_char *, const u_int);

if (len < AOEV1_COMMON_HDR_LEN)
		goto invalid;
	/* Flags */
	ND_TCHECK2(*cp, 1);
	flags = *cp & 0x0F;
	ND_PRINT((ndo, ", Flags: [%s]", bittok2str(aoev1_flag_str, "none", flags)));
	cp += 1;
	if (! ndo->ndo_vflag)
		return;
	/* Error */
	ND_TCHECK2(*cp, 1);
	if (flags & AOEV1_FLAG_E)
		ND_PRINT((ndo, "\n\tError: %s", tok2str(aoev1_errcode_str, "Invalid (%u)", *cp)));
	cp += 1;
	/* Major */
	ND_TCHECK2(*cp, 2);
	ND_PRINT((ndo, "\n\tMajor: 0x%04x", EXTRACT_16BITS(cp)));
	cp += 2;
	/* Minor */
	ND_TCHECK2(*cp, 1);
	ND_PRINT((ndo, ", Minor: 0x%02x", *cp));
	cp += 1;
	/* Command */
	ND_TCHECK2(*cp, 1);
	command = *cp;
	cp += 1;
	ND_PRINT((ndo, ", Command: %s", tok2str(cmdcode_str, "Unknown (0x%02x)", command)));
	/* Tag */
	ND_TCHECK2(*cp, 4);
	ND_PRINT((ndo, ", Tag: 0x%08x", EXTRACT_32BITS(cp)));
	cp += 4;
	/* Arg */
	cmd_decoder =
		command == AOEV1_CMD_ISSUE_ATA_COMMAND        ? aoev1_issue_print :
		command == AOEV1_CMD_QUERY_CONFIG_INFORMATION ? aoev1_query_print :
		command == AOEV1_CMD_MAC_MASK_LIST            ? aoev1_mac_print :
		command == AOEV1_CMD_RESERVE_RELEASE          ? aoev1_reserve_print :
		NULL;
	if (cmd_decoder != NULL)
		cmd_decoder(ndo, cp, len - AOEV1_COMMON_HDR_LEN);
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

void
aoe_print(netdissect_options *ndo,
          const u_char *cp, const u_int len)
{
	const u_char *ep = cp + len;
	uint8_t ver;

ND_PRINT((ndo, "AoE length %u", len));

if (len < 1)
		goto invalid;
	/* Ver/Flags */
	ND_TCHECK2(*cp, 1);
	ver = (*cp & 0xF0) >> 4;
	/* Don't advance cp yet: low order 4 bits are version-specific. */
	ND_PRINT((ndo, ", Ver %u", ver));

switch (ver) {
		case AOE_V1:
			aoev1_print(ndo, cp, len);
			break;
	}
	return;

invalid:
	ND_PRINT((ndo, "%s", istr));
	ND_TCHECK2(*cp, ep - cp);
	return;
trunc:
	ND_PRINT((ndo, "%s", tstr));
}

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