NDOize EIGRP, ICMP, L2TP, STP and UDP decoders

[tcpdump] / print-smb.c

/*
 * Copyright (C) Andrew Tridgell 1995-1999
 *
 * This software may be distributed either under the terms of the
 * BSD-style license that accompanies tcpdump or the GNU GPL version 2
 * or later
 */

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

#include <tcpdump-stdinc.h>

#include <stdio.h>
#include <string.h>

#include "interface.h"
#include "extract.h"
#include "smb.h"

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

static int request = 0;
static int unicodestr = 0;

const u_char *startbuf = NULL;

struct smbdescript {
    const char *req_f1;
    const char *req_f2;
    const char *rep_f1;
    const char *rep_f2;
    void (*fn)(const u_char *, const u_char *, const u_char *, const u_char *);
};

struct smbdescriptint {
    const char *req_f1;
    const char *req_f2;
    const char *rep_f1;
    const char *rep_f2;
    void (*fn)(const u_char *, const u_char *, int, int);
};

struct smbfns
{
    int id;
    const char *name;
    int flags;
    struct smbdescript descript;
};

struct smbfnsint
{
    int id;
    const char *name;
    int flags;
    struct smbdescriptint descript;
};

#define DEFDESCRIPT     { NULL, NULL, NULL, NULL, NULL }

#define FLG_CHAIN       (1 << 0)

static const struct smbfns *
smbfind(int id, const struct smbfns *list)
{
    int sindex;

    for (sindex = 0; list[sindex].name; sindex++)
        if (list[sindex].id == id)
            return(&list[sindex]);

    return(&list[0]);
}

static const struct smbfnsint *
smbfindint(int id, const struct smbfnsint *list)
{
    int sindex;

    for (sindex = 0; list[sindex].name; sindex++)
        if (list[sindex].id == id)
            return(&list[sindex]);

    return(&list[0]);
}

static void
trans2_findfirst(const u_char *param, const u_char *data, int pcnt, int dcnt)
{
    const char *fmt;

    if (request)
        fmt = "Attribute=[A]\nSearchCount=[d]\nFlags=[w]\nLevel=[dP4]\nFile=[S]\n";
    else
        fmt = "Handle=[w]\nCount=[d]\nEOS=[w]\nEoffset=[d]\nLastNameOfs=[w]\n";

    smb_fdata(param, fmt, param + pcnt, unicodestr);
    if (dcnt) {
        printf("data:\n");
        print_data(data, dcnt);
    }
}

static void
trans2_qfsinfo(const u_char *param, const u_char *data, int pcnt, int dcnt)
{
    static int level = 0;
    const char *fmt="";

    if (request) {
        TCHECK2(*param, 2);
        level = EXTRACT_LE_16BITS(param);
        fmt = "InfoLevel=[d]\n";
        smb_fdata(param, fmt, param + pcnt, unicodestr);
    } else {
        switch (level) {
        case 1:
            fmt = "idFileSystem=[W]\nSectorUnit=[D]\nUnit=[D]\nAvail=[D]\nSectorSize=[d]\n";
            break;
        case 2:
            fmt = "CreationTime=[T2]VolNameLength=[lb]\nVolumeLabel=[c]\n";
            break;
        case 0x105:
            fmt = "Capabilities=[W]\nMaxFileLen=[D]\nVolNameLen=[lD]\nVolume=[C]\n";
            break;
        default:
            fmt = "UnknownLevel\n";
            break;
        }
        smb_fdata(data, fmt, data + dcnt, unicodestr);
    }
    if (dcnt) {
        printf("data:\n");
        print_data(data, dcnt);
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}

static const struct smbfnsint trans2_fns[] = {
    { 0, "TRANSACT2_OPEN", 0,
        { "Flags2=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]\nOFun=[w]\nSize=[D]\nRes=([w, w, w, w, w])\nPath=[S]",
          NULL,
          "Handle=[d]\nAttrib=[A]\nTime=[T2]\nSize=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nInode=[W]\nOffErr=[d]\n|EALength=[d]\n",
          NULL, NULL }},
    { 1, "TRANSACT2_FINDFIRST", 0,
        { NULL, NULL, NULL, NULL, trans2_findfirst }},
    { 2, "TRANSACT2_FINDNEXT", 0, DEFDESCRIPT },
    { 3, "TRANSACT2_QFSINFO", 0,
        { NULL, NULL, NULL, NULL, trans2_qfsinfo }},
    { 4, "TRANSACT2_SETFSINFO", 0, DEFDESCRIPT },
    { 5, "TRANSACT2_QPATHINFO", 0, DEFDESCRIPT },
    { 6, "TRANSACT2_SETPATHINFO", 0, DEFDESCRIPT },
    { 7, "TRANSACT2_QFILEINFO", 0, DEFDESCRIPT },
    { 8, "TRANSACT2_SETFILEINFO", 0, DEFDESCRIPT },
    { 9, "TRANSACT2_FSCTL", 0, DEFDESCRIPT },
    { 10, "TRANSACT2_IOCTL", 0, DEFDESCRIPT },
    { 11, "TRANSACT2_FINDNOTIFYFIRST", 0, DEFDESCRIPT },
    { 12, "TRANSACT2_FINDNOTIFYNEXT", 0, DEFDESCRIPT },
    { 13, "TRANSACT2_MKDIR", 0, DEFDESCRIPT },
    { -1, NULL, 0, DEFDESCRIPT }
};


static void
print_trans2(const u_char *words, const u_char *dat, const u_char *buf, const u_char *maxbuf)
{
    u_int bcc;
    static const struct smbfnsint *fn = &trans2_fns[0];
    const u_char *data, *param;
    const u_char *w = words + 1;
    const char *f1 = NULL, *f2 = NULL;
    int pcnt, dcnt;

    TCHECK(words[0]);
    if (request) {
        TCHECK2(w[14 * 2], 2);
        pcnt = EXTRACT_LE_16BITS(w + 9 * 2);
        param = buf + EXTRACT_LE_16BITS(w + 10 * 2);
        dcnt = EXTRACT_LE_16BITS(w + 11 * 2);
        data = buf + EXTRACT_LE_16BITS(w + 12 * 2);
        fn = smbfindint(EXTRACT_LE_16BITS(w + 14 * 2), trans2_fns);
    } else {
        if (words[0] == 0) {
            printf("%s\n", fn->name);
            printf("Trans2Interim\n");
            return;
        }
        TCHECK2(w[7 * 2], 2);
        pcnt = EXTRACT_LE_16BITS(w + 3 * 2);
        param = buf + EXTRACT_LE_16BITS(w + 4 * 2);
        dcnt = EXTRACT_LE_16BITS(w + 6 * 2);
        data = buf + EXTRACT_LE_16BITS(w + 7 * 2);
    }

    printf("%s param_length=%d data_length=%d\n", fn->name, pcnt, dcnt);

    if (request) {
        if (words[0] == 8) {
            smb_fdata(words + 1,
                "Trans2Secondary\nTotParam=[d]\nTotData=[d]\nParamCnt=[d]\nParamOff=[d]\nParamDisp=[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nHandle=[d]\n",
                maxbuf, unicodestr);
            return;
        } else {
            smb_fdata(words + 1,
                "TotParam=[d]\nTotData=[d]\nMaxParam=[d]\nMaxData=[d]\nMaxSetup=[b][P1]\nFlags=[w]\nTimeOut=[D]\nRes1=[w]\nParamCnt=[d]\nParamOff=[d]\nDataCnt=[d]\nDataOff=[d]\nSetupCnt=[b][P1]\n",
                words + 1 + 14 * 2, unicodestr);
        }
        f1 = fn->descript.req_f1;
        f2 = fn->descript.req_f2;
    } else {
        smb_fdata(words + 1,
            "TotParam=[d]\nTotData=[d]\nRes1=[w]\nParamCnt=[d]\nParamOff=[d]\nParamDisp[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nSetupCnt=[b][P1]\n",
            words + 1 + 10 * 2, unicodestr);
        f1 = fn->descript.rep_f1;
        f2 = fn->descript.rep_f2;
    }

    TCHECK2(*dat, 2);
    bcc = EXTRACT_LE_16BITS(dat);
    printf("smb_bcc=%u\n", bcc);
    if (fn->descript.fn)
        (*fn->descript.fn)(param, data, pcnt, dcnt);
    else {
        smb_fdata(param, f1 ? f1 : "Parameters=\n", param + pcnt, unicodestr);
        smb_fdata(data, f2 ? f2 : "Data=\n", data + dcnt, unicodestr);
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}


static void
print_browse(const u_char *param, int paramlen, const u_char *data, int datalen)
{
    const u_char *maxbuf = data + datalen;
    int command;

    TCHECK(data[0]);
    command = data[0];

    smb_fdata(param, "BROWSE PACKET\n|Param ", param+paramlen, unicodestr);

    switch (command) {
    case 0xF:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (LocalMasterAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
            maxbuf, unicodestr);
        break;

    case 0x1:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (HostAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
            maxbuf, unicodestr);
        break;

    case 0x2:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (AnnouncementRequest)\nFlags=[B]\nReplySystemName=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0xc:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (WorkgroupAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nCommentPointer=[W]\nServerName=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0x8:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (ElectionFrame)\nElectionVersion=[B]\nOSSummary=[W]\nUptime=[(W, W)]\nServerName=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0xb:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (BecomeBackupBrowser)\nName=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0x9:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (GetBackupList)\nListCount?=[B]\nToken=[W]\n",
            maxbuf, unicodestr);
        break;

    case 0xa:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (BackupListResponse)\nServerCount?=[B]\nToken=[W]\n*Name=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0xd:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (MasterAnnouncement)\nMasterName=[S]\n",
            maxbuf, unicodestr);
        break;

    case 0xe:
        data = smb_fdata(data,
            "BROWSE PACKET:\nType=[B] (ResetBrowser)\nOptions=[B]\n", maxbuf, unicodestr);
        break;

    default:
        data = smb_fdata(data, "Unknown Browser Frame ", maxbuf, unicodestr);
        break;
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}


static void
print_ipc(const u_char *param, int paramlen, const u_char *data, int datalen)
{
    if (paramlen)
        smb_fdata(param, "Command=[w]\nStr1=[S]\nStr2=[S]\n", param + paramlen,
            unicodestr);
    if (datalen)
        smb_fdata(data, "IPC ", data + datalen, unicodestr);
}


static void
print_trans(const u_char *words, const u_char *data1, const u_char *buf, const u_char *maxbuf)
{
    u_int bcc;
    const char *f1, *f2, *f3, *f4;
    const u_char *data, *param;
    const u_char *w = words + 1;
    int datalen, paramlen;

    if (request) {
        TCHECK2(w[12 * 2], 2);
        paramlen = EXTRACT_LE_16BITS(w + 9 * 2);
        param = buf + EXTRACT_LE_16BITS(w + 10 * 2);
        datalen = EXTRACT_LE_16BITS(w + 11 * 2);
        data = buf + EXTRACT_LE_16BITS(w + 12 * 2);
        f1 = "TotParamCnt=[d] \nTotDataCnt=[d] \nMaxParmCnt=[d] \nMaxDataCnt=[d]\nMaxSCnt=[d] \nTransFlags=[w] \nRes1=[w] \nRes2=[w] \nRes3=[w]\nParamCnt=[d] \nParamOff=[d] \nDataCnt=[d] \nDataOff=[d] \nSUCnt=[d]\n";
        f2 = "|Name=[S]\n";
        f3 = "|Param ";
        f4 = "|Data ";
    } else {
        TCHECK2(w[7 * 2], 2);
        paramlen = EXTRACT_LE_16BITS(w + 3 * 2);
        param = buf + EXTRACT_LE_16BITS(w + 4 * 2);
        datalen = EXTRACT_LE_16BITS(w + 6 * 2);
        data = buf + EXTRACT_LE_16BITS(w + 7 * 2);
        f1 = "TotParamCnt=[d] \nTotDataCnt=[d] \nRes1=[d]\nParamCnt=[d] \nParamOff=[d] \nRes2=[d] \nDataCnt=[d] \nDataOff=[d] \nRes3=[d]\nLsetup=[d]\n";
        f2 = "|Unknown ";
        f3 = "|Param ";
        f4 = "|Data ";
    }

    smb_fdata(words + 1, f1, min(words + 1 + 2 * words[0], maxbuf),
        unicodestr);

    TCHECK2(*data1, 2);
    bcc = EXTRACT_LE_16BITS(data1);
    printf("smb_bcc=%u\n", bcc);
    if (bcc > 0) {
        smb_fdata(data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr);

        if (strcmp((const char *)(data1 + 2), "\\MAILSLOT\\BROWSE") == 0) {
            print_browse(param, paramlen, data, datalen);
            return;
        }

        if (strcmp((const char *)(data1 + 2), "\\PIPE\\LANMAN") == 0) {
            print_ipc(param, paramlen, data, datalen);
            return;
        }

        if (paramlen)
            smb_fdata(param, f3, min(param + paramlen, maxbuf), unicodestr);
        if (datalen)
            smb_fdata(data, f4, min(data + datalen, maxbuf), unicodestr);
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}


static void
print_negprot(const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
{
    u_int wct, bcc;
    const char *f1 = NULL, *f2 = NULL;

    TCHECK(words[0]);
    wct = words[0];
    if (request)
        f2 = "*|Dialect=[Y]\n";
    else {
        if (wct == 1)
            f1 = "Core Protocol\nDialectIndex=[d]";
        else if (wct == 17)
            f1 = "NT1 Protocol\nDialectIndex=[d]\nSecMode=[B]\nMaxMux=[d]\nNumVcs=[d]\nMaxBuffer=[D]\nRawSize=[D]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[d]\nCryptKey=";
        else if (wct == 13)
            f1 = "Coreplus/Lanman1/Lanman2 Protocol\nDialectIndex=[d]\nSecMode=[w]\nMaxXMit=[d]\nMaxMux=[d]\nMaxVcs=[d]\nBlkMode=[w]\nSessionKey=[W]\nServerTime=[T1]TimeZone=[d]\nRes=[W]\nCryptKey=";
    }

    if (f1)
        smb_fdata(words + 1, f1, min(words + 1 + wct * 2, maxbuf),
            unicodestr);
    else
        print_data(words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1)));

    TCHECK2(*data, 2);
    bcc = EXTRACT_LE_16BITS(data);
    printf("smb_bcc=%u\n", bcc);
    if (bcc > 0) {
        if (f2)
            smb_fdata(data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
                maxbuf), unicodestr);
        else
            print_data(data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}

static void
print_sesssetup(const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
{
    u_int wct, bcc;
    const char *f1 = NULL, *f2 = NULL;

    TCHECK(words[0]);
    wct = words[0];
    if (request) {
        if (wct == 10)
            f1 = "Com2=[w]\nOff2=[d]\nBufSize=[d]\nMpxMax=[d]\nVcNum=[d]\nSessionKey=[W]\nPassLen=[d]\nCryptLen=[d]\nCryptOff=[d]\nPass&Name=\n";
        else
            f1 = "Com2=[B]\nRes1=[B]\nOff2=[d]\nMaxBuffer=[d]\nMaxMpx=[d]\nVcNumber=[d]\nSessionKey=[W]\nCaseInsensitivePasswordLength=[d]\nCaseSensitivePasswordLength=[d]\nRes=[W]\nCapabilities=[W]\nPass1&Pass2&Account&Domain&OS&LanMan=\n";
    } else {
        if (wct == 3) {
            f1 = "Com2=[w]\nOff2=[d]\nAction=[w]\n";
        } else if (wct == 13) {
            f1 = "Com2=[B]\nRes=[B]\nOff2=[d]\nAction=[w]\n";
            f2 = "NativeOS=[S]\nNativeLanMan=[S]\nPrimaryDomain=[S]\n";
        }
    }

    if (f1)
        smb_fdata(words + 1, f1, min(words + 1 + wct * 2, maxbuf),
            unicodestr);
    else
        print_data(words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1)));

    TCHECK2(*data, 2);
    bcc = EXTRACT_LE_16BITS(data);
    printf("smb_bcc=%u\n", bcc);
    if (bcc > 0) {
        if (f2)
            smb_fdata(data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
                maxbuf), unicodestr);
        else
            print_data(data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}

static void
print_lockingandx(const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
{
    u_int wct, bcc;
    const u_char *maxwords;
    const char *f1 = NULL, *f2 = NULL;

    TCHECK(words[0]);
    wct = words[0];
    if (request) {
        f1 = "Com2=[w]\nOff2=[d]\nHandle=[d]\nLockType=[w]\nTimeOut=[D]\nUnlockCount=[d]\nLockCount=[d]\n";
        TCHECK(words[7]);
        if (words[7] & 0x10)
            f2 = "*Process=[d]\n[P2]Offset=[M]\nLength=[M]\n";
        else
            f2 = "*Process=[d]\nOffset=[D]\nLength=[D]\n";
    } else {
        f1 = "Com2=[w]\nOff2=[d]\n";
    }

    maxwords = min(words + 1 + wct * 2, maxbuf);
    if (wct)
        smb_fdata(words + 1, f1, maxwords, unicodestr);

    TCHECK2(*data, 2);
    bcc = EXTRACT_LE_16BITS(data);
    printf("smb_bcc=%u\n", bcc);
    if (bcc > 0) {
        if (f2)
            smb_fdata(data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
                maxbuf), unicodestr);
        else
            print_data(data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}


static const struct smbfns smb_fns[] = {
    { -1, "SMBunknown", 0, DEFDESCRIPT },

    { SMBtcon, "SMBtcon", 0,
        { NULL, "Path=[Z]\nPassword=[Z]\nDevice=[Z]\n",
          "MaxXmit=[d]\nTreeId=[d]\n", NULL,
          NULL } },

    { SMBtdis, "SMBtdis", 0, DEFDESCRIPT },
    { SMBexit,  "SMBexit", 0, DEFDESCRIPT },
    { SMBioctl, "SMBioctl", 0, DEFDESCRIPT },

    { SMBecho, "SMBecho", 0,
        { "ReverbCount=[d]\n", NULL,
          "SequenceNum=[d]\n", NULL,
          NULL } },

    { SMBulogoffX, "SMBulogoffX", FLG_CHAIN, DEFDESCRIPT },

    { SMBgetatr, "SMBgetatr", 0,
        { NULL, "Path=[Z]\n",
          "Attribute=[A]\nTime=[T2]Size=[D]\nRes=([w,w,w,w,w])\n", NULL,
          NULL } },

    { SMBsetatr, "SMBsetatr", 0,
        { "Attribute=[A]\nTime=[T2]Res=([w,w,w,w,w])\n", "Path=[Z]\n",
          NULL, NULL, NULL } },

    { SMBchkpth, "SMBchkpth", 0,
       { NULL, "Path=[Z]\n", NULL, NULL, NULL } },

    { SMBsearch, "SMBsearch", 0,
        { "Count=[d]\nAttrib=[A]\n",
          "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\n",
          "Count=[d]\n",
          "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n",
          NULL } },

    { SMBopen, "SMBopen", 0,
        { "Mode=[w]\nAttribute=[A]\n", "Path=[Z]\n",
          "Handle=[d]\nOAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\n",
          NULL, NULL } },

    { SMBcreate, "SMBcreate", 0,
        { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } },

    { SMBmknew, "SMBmknew", 0,
        { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } },

    { SMBunlink, "SMBunlink", 0,
        { "Attrib=[A]\n", "Path=[Z]\n", NULL, NULL, NULL } },

    { SMBread, "SMBread", 0,
        { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
          "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } },

    { SMBwrite, "SMBwrite", 0,
        { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
          "Count=[d]\n", NULL, NULL } },

    { SMBclose, "SMBclose", 0,
        { "Handle=[d]\nTime=[T2]", NULL, NULL, NULL, NULL } },

    { SMBmkdir, "SMBmkdir", 0,
        { NULL, "Path=[Z]\n", NULL, NULL, NULL } },

    { SMBrmdir, "SMBrmdir", 0,
        { NULL, "Path=[Z]\n", NULL, NULL, NULL } },

    { SMBdskattr, "SMBdskattr", 0,
        { NULL, NULL,
          "TotalUnits=[d]\nBlocksPerUnit=[d]\nBlockSize=[d]\nFreeUnits=[d]\nMedia=[w]\n",
          NULL, NULL } },

    { SMBmv, "SMBmv", 0,
        { "Attrib=[A]\n", "OldPath=[Z]\nNewPath=[Z]\n", NULL, NULL, NULL } },

    /*
     * this is a Pathworks specific call, allowing the
     * changing of the root path
     */
    { pSETDIR, "SMBsetdir", 0, { NULL, "Path=[Z]\n", NULL, NULL, NULL } },

    { SMBlseek, "SMBlseek", 0,
        { "Handle=[d]\nMode=[w]\nOffset=[D]\n", "Offset=[D]\n", NULL, NULL, NULL } },

    { SMBflush, "SMBflush", 0, { "Handle=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBsplopen, "SMBsplopen", 0,
        { "SetupLen=[d]\nMode=[w]\n", "Ident=[Z]\n", "Handle=[d]\n",
          NULL, NULL } },

    { SMBsplclose, "SMBsplclose", 0,
        { "Handle=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBsplretq, "SMBsplretq", 0,
        { "MaxCount=[d]\nStartIndex=[d]\n", NULL,
          "Count=[d]\nIndex=[d]\n",
          "*Time=[T2]Status=[B]\nJobID=[d]\nSize=[D]\nRes=[B]Name=[s16]\n",
          NULL } },

    { SMBsplwr, "SMBsplwr", 0,
        { "Handle=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBlock, "SMBlock", 0,
        { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },

    { SMBunlock, "SMBunlock", 0,
        { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },

    /* CORE+ PROTOCOL FOLLOWS */

    { SMBreadbraw, "SMBreadbraw", 0,
        { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[d]\n",
          NULL, NULL, NULL, NULL } },

    { SMBwritebraw, "SMBwritebraw", 0,
        { "Handle=[d]\nTotalCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\n|DataSize=[d]\nDataOff=[d]\n",
          NULL, "WriteRawAck", NULL, NULL } },

    { SMBwritec, "SMBwritec", 0,
        { NULL, NULL, "Count=[d]\n", NULL, NULL } },

    { SMBwriteclose, "SMBwriteclose", 0,
        { "Handle=[d]\nCount=[d]\nOffset=[D]\nTime=[T2]Res=([w,w,w,w,w,w])",
          NULL, "Count=[d]\n", NULL, NULL } },

    { SMBlockread, "SMBlockread", 0,
        { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
          "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } },

    { SMBwriteunlock, "SMBwriteunlock", 0,
        { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
          "Count=[d]\n", NULL, NULL } },

    { SMBreadBmpx, "SMBreadBmpx", 0,
        { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[w]\n",
          NULL,
          "Offset=[D]\nTotCount=[d]\nRemaining=[d]\nRes=([w,w])\nDataSize=[d]\nDataOff=[d]\n",
          NULL, NULL } },

    { SMBwriteBmpx, "SMBwriteBmpx", 0,
        { "Handle=[d]\nTotCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\nDataSize=[d]\nDataOff=[d]\n", NULL,
          "Remaining=[d]\n", NULL, NULL } },

    { SMBwriteBs, "SMBwriteBs", 0,
        { "Handle=[d]\nTotCount=[d]\nOffset=[D]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\n",
          NULL, "Count=[d]\n", NULL, NULL } },

    { SMBsetattrE, "SMBsetattrE", 0,
        { "Handle=[d]\nCreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]", NULL,
          NULL, NULL, NULL } },

    { SMBgetattrE, "SMBgetattrE", 0,
        { "Handle=[d]\n", NULL,
          "CreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]Size=[D]\nAllocSize=[D]\nAttribute=[A]\n",
          NULL, NULL } },

    { SMBtranss, "SMBtranss", 0, DEFDESCRIPT },
    { SMBioctls, "SMBioctls", 0, DEFDESCRIPT },

    { SMBcopy, "SMBcopy", 0,
        { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
          "CopyCount=[d]\n",  "|ErrStr=[S]\n",  NULL } },

    { SMBmove, "SMBmove", 0,
        { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
          "MoveCount=[d]\n",  "|ErrStr=[S]\n",  NULL } },

    { SMBopenX, "SMBopenX", FLG_CHAIN,
        { "Com2=[w]\nOff2=[d]\nFlags=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]OFun=[w]\nSize=[D]\nTimeOut=[D]\nRes=[W]\n",
          "Path=[S]\n",
          "Com2=[w]\nOff2=[d]\nHandle=[d]\nAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nFileID=[W]\nRes=[w]\n",
          NULL, NULL } },

    { SMBreadX, "SMBreadX", FLG_CHAIN,
        { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nCountLeft=[d]\n",
          NULL,
          "Com2=[w]\nOff2=[d]\nRemaining=[d]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\nRes=([w,w,w,w])\n",
          NULL, NULL } },

    { SMBwriteX, "SMBwriteX", FLG_CHAIN,
        { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nCountLeft=[d]\nRes=[w]\nDataSize=[d]\nDataOff=[d]\n",
          NULL,
          "Com2=[w]\nOff2=[d]\nCount=[d]\nRemaining=[d]\nRes=[W]\n",
          NULL, NULL } },

    { SMBffirst, "SMBffirst", 0,
        { "Count=[d]\nAttrib=[A]\n",
          "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
          "Count=[d]\n",
          "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n",
          NULL } },

    { SMBfunique, "SMBfunique", 0,
        { "Count=[d]\nAttrib=[A]\n",
          "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
          "Count=[d]\n",
          "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n",
          NULL } },

    { SMBfclose, "SMBfclose", 0,
        { "Count=[d]\nAttrib=[A]\n",
          "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
          "Count=[d]\n",
          "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n",
          NULL } },

    { SMBfindnclose, "SMBfindnclose", 0,
        { "Handle=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBfindclose, "SMBfindclose", 0,
        { "Handle=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBsends, "SMBsends", 0,
        { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } },

    { SMBsendstrt, "SMBsendstrt", 0,
        { NULL, "Source=[Z]\nDest=[Z]\n", "GroupID=[d]\n", NULL, NULL } },

    { SMBsendend, "SMBsendend", 0,
        { "GroupID=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBsendtxt, "SMBsendtxt", 0,
        { "GroupID=[d]\n", NULL, NULL, NULL, NULL } },

    { SMBsendb, "SMBsendb", 0,
        { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } },

    { SMBfwdname, "SMBfwdname", 0, DEFDESCRIPT },
    { SMBcancelf, "SMBcancelf", 0, DEFDESCRIPT },
    { SMBgetmac, "SMBgetmac", 0, DEFDESCRIPT },

    { SMBnegprot, "SMBnegprot", 0,
        { NULL, NULL, NULL, NULL, print_negprot } },

    { SMBsesssetupX, "SMBsesssetupX", FLG_CHAIN,
        { NULL, NULL, NULL, NULL, print_sesssetup } },

    { SMBtconX, "SMBtconX", FLG_CHAIN,
        { "Com2=[w]\nOff2=[d]\nFlags=[w]\nPassLen=[d]\nPasswd&Path&Device=\n",
          NULL, "Com2=[w]\nOff2=[d]\n", "ServiceType=[R]\n", NULL } },

    { SMBlockingX, "SMBlockingX", FLG_CHAIN,
        { NULL, NULL, NULL, NULL, print_lockingandx } },

    { SMBtrans2, "SMBtrans2", 0, { NULL, NULL, NULL, NULL, print_trans2 } },

    { SMBtranss2, "SMBtranss2", 0, DEFDESCRIPT },
    { SMBctemp, "SMBctemp", 0, DEFDESCRIPT },
    { SMBreadBs, "SMBreadBs", 0, DEFDESCRIPT },
    { SMBtrans, "SMBtrans", 0, { NULL, NULL, NULL, NULL, print_trans } },

    { SMBnttrans, "SMBnttrans", 0, DEFDESCRIPT },
    { SMBnttranss, "SMBnttranss", 0, DEFDESCRIPT },

    { SMBntcreateX, "SMBntcreateX", FLG_CHAIN,
        { "Com2=[w]\nOff2=[d]\nRes=[b]\nNameLen=[ld]\nFlags=[W]\nRootDirectoryFid=[D]\nAccessMask=[W]\nAllocationSize=[L]\nExtFileAttributes=[W]\nShareAccess=[W]\nCreateDisposition=[W]\nCreateOptions=[W]\nImpersonationLevel=[W]\nSecurityFlags=[b]\n",
          "Path=[C]\n",
          "Com2=[w]\nOff2=[d]\nOplockLevel=[b]\nFid=[d]\nCreateAction=[W]\nCreateTime=[T3]LastAccessTime=[T3]LastWriteTime=[T3]ChangeTime=[T3]ExtFileAttributes=[W]\nAllocationSize=[L]\nEndOfFile=[L]\nFileType=[w]\nDeviceState=[w]\nDirectory=[b]\n",
          NULL, NULL } },

    { SMBntcancel, "SMBntcancel", 0, DEFDESCRIPT },

    { -1, NULL, 0, DEFDESCRIPT }
};


/*
 * print a SMB message
 */
static void
print_smb(const u_char *buf, const u_char *maxbuf)
{
    u_int16_t flags2;
    int nterrcodes;
    int command;
    u_int32_t nterror;
    const u_char *words, *maxwords, *data;
    const struct smbfns *fn;
    const char *fmt_smbheader =
        "[P4]SMB Command   =  [B]\nError class   =  [BP1]\nError code    =  [d]\nFlags1        =  [B]\nFlags2        =  [B][P13]\nTree ID       =  [d]\nProc ID       =  [d]\nUID           =  [d]\nMID           =  [d]\nWord Count    =  [b]\n";
    int smboffset;

    TCHECK(buf[9]);
    request = (buf[9] & 0x80) ? 0 : 1;
    flags2 = EXTRACT_LE_16BITS(&buf[10]);
    unicodestr = flags2 & 0x8000;
    nterrcodes = flags2 & 0x4000;
    startbuf = buf;

    command = buf[4];

    fn = smbfind(command, smb_fns);

    if (vflag > 1)
        printf("\n");

    printf("SMB PACKET: %s (%s)\n", fn->name, request ? "REQUEST" : "REPLY");

    if (vflag < 2)
        return;

    /* print out the header */
    smb_fdata(buf, fmt_smbheader, buf + 33, unicodestr);

    if (nterrcodes) {
        nterror = EXTRACT_LE_32BITS(&buf[5]);
        if (nterror)
            printf("NTError = %s\n", nt_errstr(nterror));
    } else {
        if (buf[5])
            printf("SMBError = %s\n", smb_errstr(buf[5], EXTRACT_LE_16BITS(&buf[7])));
    }

    smboffset = 32;

    for (;;) {
        const char *f1, *f2;
        int wct;
        u_int bcc;
        int newsmboffset;

        words = buf + smboffset;
        TCHECK(words[0]);
        wct = words[0];
        data = words + 1 + wct * 2;
        maxwords = min(data, maxbuf);

        if (request) {
            f1 = fn->descript.req_f1;
            f2 = fn->descript.req_f2;
        } else {
            f1 = fn->descript.rep_f1;
            f2 = fn->descript.rep_f2;
        }

        if (fn->descript.fn)
            (*fn->descript.fn)(words, data, buf, maxbuf);
        else {
            if (wct) {
                if (f1)
                    smb_fdata(words + 1, f1, words + 1 + wct * 2, unicodestr);
                else {
                    int i;
                    int v;

                    for (i = 0; &words[1 + 2 * i] < maxwords; i++) {
                        TCHECK2(words[1 + 2 * i], 2);
                        v = EXTRACT_LE_16BITS(words + 1 + 2 * i);
                        printf("smb_vwv[%d]=%d (0x%X)\n", i, v, v);
                    }
                }
            }

            TCHECK2(*data, 2);
            bcc = EXTRACT_LE_16BITS(data);
            printf("smb_bcc=%u\n", bcc);
            if (f2) {
                if (bcc > 0)
                    smb_fdata(data + 2, f2, data + 2 + bcc, unicodestr);
            } else {
                if (bcc > 0) {
                    printf("smb_buf[]=\n");
                    print_data(data + 2, min(bcc, PTR_DIFF(maxbuf, data + 2)));
                }
            }
        }

        if ((fn->flags & FLG_CHAIN) == 0)
            break;
        if (wct == 0)
            break;
        TCHECK(words[1]);
        command = words[1];
        if (command == 0xFF)
            break;
        TCHECK2(words[3], 2);
        newsmboffset = EXTRACT_LE_16BITS(words + 3);

        fn = smbfind(command, smb_fns);

        printf("\nSMB PACKET: %s (%s) (CHAINED)\n",
            fn->name, request ? "REQUEST" : "REPLY");
        if (newsmboffset <= smboffset) {
            printf("Bad andX offset: %u <= %u\n", newsmboffset, smboffset);
            break;
        }
        smboffset = newsmboffset;
    }

    printf("\n");
    return;
trunc:
    printf("%s", tstr);
    return;
}


/*
 * print a NBT packet received across tcp on port 139
 */
void
nbt_tcp_print(const u_char *data, int length)
{
    int caplen;
    int type;
    u_int nbt_len;
    const u_char *maxbuf;

    if (length < 4)
        goto trunc;
    if (snapend < data)
        goto trunc;
    caplen = snapend - data;
    if (caplen < 4)
        goto trunc;
    maxbuf = data + caplen;
    type = data[0];
    nbt_len = EXTRACT_16BITS(data + 2);
    length -= 4;
    caplen -= 4;

    startbuf = data;

    if (vflag < 2) {
        printf(" NBT Session Packet: ");
        switch (type) {
        case 0x00:
            printf("Session Message");
            break;

        case 0x81:
            printf("Session Request");
            break;

        case 0x82:
            printf("Session Granted");
            break;

        case 0x83:
          {
            int ecode;

            if (nbt_len < 4)
                goto trunc;
            if (length < 4)
                goto trunc;
            if (caplen < 4)
                goto trunc;
            ecode = data[4];

            printf("Session Reject, ");
            switch (ecode) {
            case 0x80:
                printf("Not listening on called name");
                break;
            case 0x81:
                printf("Not listening for calling name");
                break;
            case 0x82:
                printf("Called name not present");
                break;
            case 0x83:
                printf("Called name present, but insufficient resources");
                break;
            default:
                printf("Unspecified error 0x%X", ecode);
                break;
            }
          }
            break;

        case 0x85:
            printf("Session Keepalive");
            break;

        default:
            data = smb_fdata(data, "Unknown packet type [rB]", maxbuf, 0);
            break;
        }
    } else {
        printf ("\n>>> NBT Session Packet\n");
        switch (type) {
        case 0x00:
            data = smb_fdata(data, "[P1]NBT Session Message\nFlags=[B]\nLength=[rd]\n",
                data + 4, 0);
            if (data == NULL)
                break;
            if (nbt_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
                if ((int)nbt_len > caplen) {
                    if ((int)nbt_len > length)
                        printf("WARNING: Packet is continued in later TCP segments\n");
                    else
                        printf("WARNING: Short packet. Try increasing the snap length by %d\n",
                            nbt_len - caplen);
                }
                print_smb(data, maxbuf > data + nbt_len ? data + nbt_len : maxbuf);
            } else
                printf("Session packet:(raw data or continuation?)\n");
            break;

        case 0x81:
            data = smb_fdata(data,
                "[P1]NBT Session Request\nFlags=[B]\nLength=[rd]\nDestination=[n1]\nSource=[n1]\n",
                maxbuf, 0);
            break;

        case 0x82:
            data = smb_fdata(data, "[P1]NBT Session Granted\nFlags=[B]\nLength=[rd]\n", maxbuf, 0);
            break;

        case 0x83:
          {
            const u_char *origdata;
            int ecode;

            origdata = data;
            data = smb_fdata(data, "[P1]NBT SessionReject\nFlags=[B]\nLength=[rd]\nReason=[B]\n",
                maxbuf, 0);
            if (data == NULL)
                break;
            if (nbt_len >= 1 && caplen >= 1) {
                ecode = origdata[4];
                switch (ecode) {
                case 0x80:
                    printf("Not listening on called name\n");
                    break;
                case 0x81:
                    printf("Not listening for calling name\n");
                    break;
                case 0x82:
                    printf("Called name not present\n");
                    break;
                case 0x83:
                    printf("Called name present, but insufficient resources\n");
                    break;
                default:
                    printf("Unspecified error 0x%X\n", ecode);
                    break;
                }
            }
          }
            break;

        case 0x85:
            data = smb_fdata(data, "[P1]NBT Session Keepalive\nFlags=[B]\nLength=[rd]\n", maxbuf, 0);
            break;

        default:
            data = smb_fdata(data, "NBT - Unknown packet type\nType=[B]\n", maxbuf, 0);
            break;
        }
        printf("\n");
        fflush(stdout);
    }
    return;
trunc:
    printf("%s", tstr);
    return;
}


/*
 * print a NBT packet received across udp on port 137
 */
void
nbt_udp137_print(const u_char *data, int length)
{
    const u_char *maxbuf = data + length;
    int name_trn_id, response, opcode, nm_flags, rcode;
    int qdcount, ancount, nscount, arcount;
    const char *opcodestr;
    const u_char *p;
    int total, i;

    TCHECK2(data[10], 2);
    name_trn_id = EXTRACT_16BITS(data);
    response = (data[2] >> 7);
    opcode = (data[2] >> 3) & 0xF;
    nm_flags = ((data[2] & 0x7) << 4) + (data[3] >> 4);
    rcode = data[3] & 0xF;
    qdcount = EXTRACT_16BITS(data + 4);
    ancount = EXTRACT_16BITS(data + 6);
    nscount = EXTRACT_16BITS(data + 8);
    arcount = EXTRACT_16BITS(data + 10);
    startbuf = data;

    if (maxbuf <= data)
        return;

    if (vflag > 1)
        printf("\n>>> ");

    printf("NBT UDP PACKET(137): ");

    switch (opcode) {
    case 0: opcodestr = "QUERY"; break;
    case 5: opcodestr = "REGISTRATION"; break;
    case 6: opcodestr = "RELEASE"; break;
    case 7: opcodestr = "WACK"; break;
    case 8: opcodestr = "REFRESH(8)"; break;
    case 9: opcodestr = "REFRESH"; break;
    case 15: opcodestr = "MULTIHOMED REGISTRATION"; break;
    default: opcodestr = "OPUNKNOWN"; break;
    }
    printf("%s", opcodestr);
    if (response) {
        if (rcode)
            printf("; NEGATIVE");
        else
            printf("; POSITIVE");
    }

    if (response)
        printf("; RESPONSE");
    else
        printf("; REQUEST");

    if (nm_flags & 1)
        printf("; BROADCAST");
    else
        printf("; UNICAST");

    if (vflag < 2)
        return;

    printf("\nTrnID=0x%X\nOpCode=%d\nNmFlags=0x%X\nRcode=%d\nQueryCount=%d\nAnswerCount=%d\nAuthorityCount=%d\nAddressRecCount=%d\n",
        name_trn_id, opcode, nm_flags, rcode, qdcount, ancount, nscount,
        arcount);

    p = data + 12;

    total = ancount + nscount + arcount;

    if (qdcount > 100 || total > 100) {
        printf("Corrupt packet??\n");
        return;
    }

    if (qdcount) {
        printf("QuestionRecords:\n");
        for (i = 0; i < qdcount; i++) {
            p = smb_fdata(p,
                "|Name=[n1]\nQuestionType=[rw]\nQuestionClass=[rw]\n#",
                maxbuf, 0);
            if (p == NULL)
                goto out;
        }
    }

    if (total) {
        printf("\nResourceRecords:\n");
        for (i = 0; i < total; i++) {
            int rdlen;
            int restype;

            p = smb_fdata(p, "Name=[n1]\n#", maxbuf, 0);
            if (p == NULL)
                goto out;
            restype = EXTRACT_16BITS(p);
            p = smb_fdata(p, "ResType=[rw]\nResClass=[rw]\nTTL=[rD]\n", p + 8, 0);
            if (p == NULL)
                goto out;
            rdlen = EXTRACT_16BITS(p);
            printf("ResourceLength=%d\nResourceData=\n", rdlen);
            p += 2;
            if (rdlen == 6) {
                p = smb_fdata(p, "AddrType=[rw]\nAddress=[b.b.b.b]\n", p + rdlen, 0);
                if (p == NULL)
                    goto out;
            } else {
                if (restype == 0x21) {
                    int numnames;

                    TCHECK(*p);
                    numnames = p[0];
                    p = smb_fdata(p, "NumNames=[B]\n", p + 1, 0);
                    if (p == NULL)
                        goto out;
                    while (numnames--) {
                        p = smb_fdata(p, "Name=[n2]\t#", maxbuf, 0);
                        if (p == NULL)
                            goto out;
                        TCHECK(*p);
                        if (p[0] & 0x80)
                            printf("<GROUP> ");
                        switch (p[0] & 0x60) {
                        case 0x00: printf("B "); break;
                        case 0x20: printf("P "); break;
                        case 0x40: printf("M "); break;
                        case 0x60: printf("_ "); break;
                        }
                        if (p[0] & 0x10)
                            printf("<DEREGISTERING> ");
                        if (p[0] & 0x08)
                            printf("<CONFLICT> ");
                        if (p[0] & 0x04)
                            printf("<ACTIVE> ");
                        if (p[0] & 0x02)
                            printf("<PERMANENT> ");
                        printf("\n");
                        p += 2;
                    }
                } else {
                    print_data(p, min(rdlen, length - (p - data)));
                    p += rdlen;
                }
            }
        }
    }

    if (p < maxbuf)
        smb_fdata(p, "AdditionalData:\n", maxbuf, 0);

out:
    printf("\n");
    fflush(stdout);
    return;
trunc:
    printf("%s", tstr);
    return;
}

/*
 * Print an SMB-over-TCP packet received across tcp on port 445
 */
void
smb_tcp_print (const u_char * data, int length)
{
    int caplen;
    u_int smb_len;
    const u_char *maxbuf;

    if (length < 4)
        goto trunc;
    if (snapend < data)
        goto trunc;
    caplen = snapend - data;
    if (caplen < 4)
        goto trunc;
    maxbuf = data + caplen;
    smb_len = EXTRACT_24BITS(data + 1);
    length -= 4;
    caplen -= 4;

    startbuf = data;
    data += 4;

    if (smb_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
        if ((int)smb_len > caplen) {
            if ((int)smb_len > length)
                printf("WARNING: Packet is continued in later TCP segments\n");
            else
                printf("WARNING: Short packet. Try increasing the snap length by %d\n",
                    smb_len - caplen);
        }
        print_smb(data, maxbuf > data + smb_len ? data + smb_len : maxbuf);
    } else
        printf("SMB-over-TCP packet:(raw data or continuation?)\n");
    return;
trunc:
    printf("%s", tstr);
    return;
}

/*
 * print a NBT packet received across udp on port 138
 */
void
nbt_udp138_print(const u_char *data, int length)
{
    const u_char *maxbuf = data + length;

    if (maxbuf > snapend)
        maxbuf = snapend;
    if (maxbuf <= data)
        return;
    startbuf = data;

    if (vflag < 2) {
        printf("NBT UDP PACKET(138)");
        return;
    }

    data = smb_fdata(data,
        "\n>>> NBT UDP PACKET(138) Res=[rw] ID=[rw] IP=[b.b.b.b] Port=[rd] Length=[rd] Res2=[rw]\nSourceName=[n1]\nDestName=[n1]\n#",
        maxbuf, 0);

    if (data != NULL) {
        /* If there isn't enough data for "\377SMB", don't check for it. */
        if (&data[3] >= maxbuf)
            goto out;

        if (memcmp(data, "\377SMB",4) == 0)
            print_smb(data, maxbuf);
    }
out:
    printf("\n");
    fflush(stdout);
}


/*
   print netbeui frames
*/
struct nbf_strings {
        const char      *name;
        const char      *nonverbose;
        const char      *verbose;
} nbf_strings[0x20] = {
        { "Add Group Name Query", ", [P23]Name to add=[n2]#",
          "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" },
        { "Add Name Query", ", [P23]Name to add=[n2]#",
          "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" },
        { "Name In Conflict", NULL, NULL },
        { "Status Query", NULL, NULL },
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { "Terminate Trace", NULL, NULL },
        { "Datagram", NULL,
          "[P7]Destination=[n2]\nSource=[n2]\n" },
        { "Broadcast Datagram", NULL,
          "[P7]Destination=[n2]\nSource=[n2]\n" },
        { "Name Query", ", [P7]Name=[n2]#",
          "[P1]SessionNumber=[B]\nNameType=[B][P2]\nResponseCorrelator=[w]\nName=[n2]\nName of sender=[n2]\n" },
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { "Add Name Response", ", [P1]GroupName=[w] [P4]Destination=[n2] Source=[n2]#",
          "AddNameInProcess=[B]\nGroupName=[w]\nTransmitCorrelator=[w][P2]\nDestination=[n2]\nSource=[n2]\n" },
        { "Name Recognized", NULL,
          "[P1]Data2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nDestination=[n2]\nSource=[n2]\n" },
        { "Status Response", NULL, NULL },
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { "Terminate Trace", NULL, NULL },
        { "Data Ack", NULL,
          "[P3]TransmitCorrelator=[w][P2]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Data First/Middle", NULL,
          "Flags=[{RECEIVE_CONTINUE|NO_ACK||PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Data Only/Last", NULL,
          "Flags=[{|NO_ACK|PIGGYBACK_ACK_ALLOWED|PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Session Confirm", NULL,
          "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Session End", NULL,
          "[P1]Data2=[w][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Session Initialize", NULL,
          "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "No Receive", NULL,
          "Flags=[{|SEND_NO_ACK}]\nDataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Receive Outstanding", NULL,
          "[P1]DataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { "Receive Continue", NULL,
          "[P2]TransmitCorrelator=[w]\n[P2]RemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
        { NULL, NULL, NULL },   /* not used */
        { NULL, NULL, NULL },   /* not used */
        { "Session Alive", NULL, NULL }
};

void
netbeui_print(u_short control, const u_char *data, int length)
{
    const u_char *maxbuf = data + length;
    int len;
    int command;
    const u_char *data2;
    int is_truncated = 0;

    if (maxbuf > snapend)
        maxbuf = snapend;
    TCHECK(data[4]);
    len = EXTRACT_LE_16BITS(data);
    command = data[4];
    data2 = data + len;
    if (data2 >= maxbuf) {
        data2 = maxbuf;
        is_truncated = 1;
    }

    startbuf = data;

    if (vflag < 2) {
        printf("NBF Packet: ");
        data = smb_fdata(data, "[P5]#", maxbuf, 0);
    } else {
        printf("\n>>> NBF Packet\nType=0x%X ", control);
        data = smb_fdata(data, "Length=[d] Signature=[w] Command=[B]\n#", maxbuf, 0);
    }
    if (data == NULL)
        goto out;

    if (command > 0x1f || nbf_strings[command].name == NULL) {
        if (vflag < 2)
            data = smb_fdata(data, "Unknown NBF Command#", data2, 0);
        else
            data = smb_fdata(data, "Unknown NBF Command\n", data2, 0);
    } else {
        if (vflag < 2) {
            printf("%s", nbf_strings[command].name);
            if (nbf_strings[command].nonverbose != NULL)
                data = smb_fdata(data, nbf_strings[command].nonverbose, data2, 0);
        } else {
            printf("%s:\n", nbf_strings[command].name);
            if (nbf_strings[command].verbose != NULL)
                data = smb_fdata(data, nbf_strings[command].verbose, data2, 0);
            else
                printf("\n");
        }
    }

    if (vflag < 2)
        return;

    if (data == NULL)
        goto out;

    if (is_truncated) {
        /* data2 was past the end of the buffer */
        goto out;
    }

    /* If this isn't a command that would contain an SMB message, quit. */
    if (command != 0x08 && command != 0x09 && command != 0x15 &&
        command != 0x16)
        goto out;

    /* If there isn't enough data for "\377SMB", don't look for it. */
    if (&data2[3] >= maxbuf)
        goto out;

    if (memcmp(data2, "\377SMB",4) == 0)
        print_smb(data2, maxbuf);
    else {
        int i;
        for (i = 0; i < 128; i++) {
            if (&data2[i + 3] >= maxbuf)
                break;
            if (memcmp(&data2[i], "\377SMB", 4) == 0) {
                printf("found SMB packet at %d\n", i);
                print_smb(&data2[i], maxbuf);
                break;
            }
        }
    }

out:
    printf("\n");
    return;
trunc:
    printf("%s", tstr);
    return;
}


/*
 * print IPX-Netbios frames
 */
void
ipx_netbios_print(const u_char *data, u_int length)
{
    /*
     * this is a hack till I work out how to parse the rest of the
     * NetBIOS-over-IPX stuff
     */
    int i;
    const u_char *maxbuf;

    maxbuf = data + length;
    /* Don't go past the end of the captured data in the packet. */
    if (maxbuf > snapend)
        maxbuf = snapend;
    startbuf = data;
    for (i = 0; i < 128; i++) {
        if (&data[i + 4] > maxbuf)
            break;
        if (memcmp(&data[i], "\377SMB", 4) == 0) {
            smb_fdata(data, "\n>>> IPX transport ", &data[i], 0);
            print_smb(&data[i], maxbuf);
            printf("\n");
            fflush(stdout);
            break;
        }
    }
    if (i == 128)
        smb_fdata(data, "\n>>> Unknown IPX ", maxbuf, 0);
}