print-smb.c revision 313537 
1/*
2 * Copyright (C) Andrew Tridgell 1995-1999
3 *
4 * This software may be distributed either under the terms of the
5 * BSD-style license that accompanies tcpdump or the GNU GPL version 2
6 * or later
7 */
8
9/* \summary: SMB/CIFS printer */
10
11#ifdef HAVE_CONFIG_H
12#include "config.h"
13#endif
14
15#include <netdissect-stdinc.h>
16
17#include <string.h>
18
19#include "netdissect.h"
20#include "extract.h"
21#include "smb.h"
22
23static const char tstr[] = "[|SMB]";
24
25static int request = 0;
26static int unicodestr = 0;
27
28const u_char *startbuf = NULL;
29
30struct smbdescript {
31    const char *req_f1;
32    const char *req_f2;
33    const char *rep_f1;
34    const char *rep_f2;
35    void (*fn)(netdissect_options *, const u_char *, const u_char *, const u_char *, const u_char *);
36};
37
38struct smbdescriptint {
39    const char *req_f1;
40    const char *req_f2;
41    const char *rep_f1;
42    const char *rep_f2;
43    void (*fn)(netdissect_options *, const u_char *, const u_char *, int, int);
44};
45
46struct smbfns
47{
48    int id;
49    const char *name;
50    int flags;
51    struct smbdescript descript;
52};
53
54struct smbfnsint
55{
56    int id;
57    const char *name;
58    int flags;
59    struct smbdescriptint descript;
60};
61
62#define DEFDESCRIPT	{ NULL, NULL, NULL, NULL, NULL }
63
64#define FLG_CHAIN	(1 << 0)
65
66static const struct smbfns *
67smbfind(int id, const struct smbfns *list)
68{
69    int sindex;
70
71    for (sindex = 0; list[sindex].name; sindex++)
72	if (list[sindex].id == id)
73	    return(&list[sindex]);
74
75    return(&list[0]);
76}
77
78static const struct smbfnsint *
79smbfindint(int id, const struct smbfnsint *list)
80{
81    int sindex;
82
83    for (sindex = 0; list[sindex].name; sindex++)
84	if (list[sindex].id == id)
85	    return(&list[sindex]);
86
87    return(&list[0]);
88}
89
90static void
91trans2_findfirst(netdissect_options *ndo,
92                 const u_char *param, const u_char *data, int pcnt, int dcnt)
93{
94    const char *fmt;
95
96    if (request)
97	fmt = "Attribute=[A]\nSearchCount=[d]\nFlags=[w]\nLevel=[dP4]\nFile=[S]\n";
98    else
99	fmt = "Handle=[w]\nCount=[d]\nEOS=[w]\nEoffset=[d]\nLastNameOfs=[w]\n";
100
101    smb_fdata(ndo, param, fmt, param + pcnt, unicodestr);
102    if (dcnt) {
103	ND_PRINT((ndo, "data:\n"));
104	smb_print_data(ndo, data, dcnt);
105    }
106}
107
108static void
109trans2_qfsinfo(netdissect_options *ndo,
110               const u_char *param, const u_char *data, int pcnt, int dcnt)
111{
112    static int level = 0;
113    const char *fmt="";
114
115    if (request) {
116	ND_TCHECK2(*param, 2);
117	level = EXTRACT_LE_16BITS(param);
118	fmt = "InfoLevel=[d]\n";
119	smb_fdata(ndo, param, fmt, param + pcnt, unicodestr);
120    } else {
121	switch (level) {
122	case 1:
123	    fmt = "idFileSystem=[W]\nSectorUnit=[D]\nUnit=[D]\nAvail=[D]\nSectorSize=[d]\n";
124	    break;
125	case 2:
126	    fmt = "CreationTime=[T2]VolNameLength=[lb]\nVolumeLabel=[c]\n";
127	    break;
128	case 0x105:
129	    fmt = "Capabilities=[W]\nMaxFileLen=[D]\nVolNameLen=[lD]\nVolume=[C]\n";
130	    break;
131	default:
132	    fmt = "UnknownLevel\n";
133	    break;
134	}
135	smb_fdata(ndo, data, fmt, data + dcnt, unicodestr);
136    }
137    if (dcnt) {
138	ND_PRINT((ndo, "data:\n"));
139	smb_print_data(ndo, data, dcnt);
140    }
141    return;
142trunc:
143    ND_PRINT((ndo, "%s", tstr));
144}
145
146static const struct smbfnsint trans2_fns[] = {
147    { 0, "TRANSACT2_OPEN", 0,
148	{ "Flags2=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]\nOFun=[w]\nSize=[D]\nRes=([w, w, w, w, w])\nPath=[S]",
149	  NULL,
150	  "Handle=[d]\nAttrib=[A]\nTime=[T2]\nSize=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nInode=[W]\nOffErr=[d]\n|EALength=[d]\n",
151	  NULL, NULL }},
152    { 1, "TRANSACT2_FINDFIRST", 0,
153	{ NULL, NULL, NULL, NULL, trans2_findfirst }},
154    { 2, "TRANSACT2_FINDNEXT", 0, DEFDESCRIPT },
155    { 3, "TRANSACT2_QFSINFO", 0,
156	{ NULL, NULL, NULL, NULL, trans2_qfsinfo }},
157    { 4, "TRANSACT2_SETFSINFO", 0, DEFDESCRIPT },
158    { 5, "TRANSACT2_QPATHINFO", 0, DEFDESCRIPT },
159    { 6, "TRANSACT2_SETPATHINFO", 0, DEFDESCRIPT },
160    { 7, "TRANSACT2_QFILEINFO", 0, DEFDESCRIPT },
161    { 8, "TRANSACT2_SETFILEINFO", 0, DEFDESCRIPT },
162    { 9, "TRANSACT2_FSCTL", 0, DEFDESCRIPT },
163    { 10, "TRANSACT2_IOCTL", 0, DEFDESCRIPT },
164    { 11, "TRANSACT2_FINDNOTIFYFIRST", 0, DEFDESCRIPT },
165    { 12, "TRANSACT2_FINDNOTIFYNEXT", 0, DEFDESCRIPT },
166    { 13, "TRANSACT2_MKDIR", 0, DEFDESCRIPT },
167    { -1, NULL, 0, DEFDESCRIPT }
168};
169
170
171static void
172print_trans2(netdissect_options *ndo,
173             const u_char *words, const u_char *dat, const u_char *buf, const u_char *maxbuf)
174{
175    u_int bcc;
176    static const struct smbfnsint *fn = &trans2_fns[0];
177    const u_char *data, *param;
178    const u_char *w = words + 1;
179    const char *f1 = NULL, *f2 = NULL;
180    int pcnt, dcnt;
181
182    ND_TCHECK(words[0]);
183    if (request) {
184	ND_TCHECK2(w[14 * 2], 2);
185	pcnt = EXTRACT_LE_16BITS(w + 9 * 2);
186	param = buf + EXTRACT_LE_16BITS(w + 10 * 2);
187	dcnt = EXTRACT_LE_16BITS(w + 11 * 2);
188	data = buf + EXTRACT_LE_16BITS(w + 12 * 2);
189	fn = smbfindint(EXTRACT_LE_16BITS(w + 14 * 2), trans2_fns);
190    } else {
191	if (words[0] == 0) {
192	    ND_PRINT((ndo, "%s\n", fn->name));
193	    ND_PRINT((ndo, "Trans2Interim\n"));
194	    return;
195	}
196	ND_TCHECK2(w[7 * 2], 2);
197	pcnt = EXTRACT_LE_16BITS(w + 3 * 2);
198	param = buf + EXTRACT_LE_16BITS(w + 4 * 2);
199	dcnt = EXTRACT_LE_16BITS(w + 6 * 2);
200	data = buf + EXTRACT_LE_16BITS(w + 7 * 2);
201    }
202
203    ND_PRINT((ndo, "%s param_length=%d data_length=%d\n", fn->name, pcnt, dcnt));
204
205    if (request) {
206	if (words[0] == 8) {
207	    smb_fdata(ndo, words + 1,
208		"Trans2Secondary\nTotParam=[d]\nTotData=[d]\nParamCnt=[d]\nParamOff=[d]\nParamDisp=[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nHandle=[d]\n",
209		maxbuf, unicodestr);
210	    return;
211	} else {
212	    smb_fdata(ndo, words + 1,
213		"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",
214		words + 1 + 14 * 2, unicodestr);
215	}
216	f1 = fn->descript.req_f1;
217	f2 = fn->descript.req_f2;
218    } else {
219	smb_fdata(ndo, words + 1,
220	    "TotParam=[d]\nTotData=[d]\nRes1=[w]\nParamCnt=[d]\nParamOff=[d]\nParamDisp[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nSetupCnt=[b][P1]\n",
221	    words + 1 + 10 * 2, unicodestr);
222	f1 = fn->descript.rep_f1;
223	f2 = fn->descript.rep_f2;
224    }
225
226    ND_TCHECK2(*dat, 2);
227    bcc = EXTRACT_LE_16BITS(dat);
228    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
229    if (fn->descript.fn)
230	(*fn->descript.fn)(ndo, param, data, pcnt, dcnt);
231    else {
232	smb_fdata(ndo, param, f1 ? f1 : "Parameters=\n", param + pcnt, unicodestr);
233	smb_fdata(ndo, data, f2 ? f2 : "Data=\n", data + dcnt, unicodestr);
234    }
235    return;
236trunc:
237    ND_PRINT((ndo, "%s", tstr));
238}
239
240static void
241print_browse(netdissect_options *ndo,
242             const u_char *param, int paramlen, const u_char *data, int datalen)
243{
244    const u_char *maxbuf = data + datalen;
245    int command;
246
247    ND_TCHECK(data[0]);
248    command = data[0];
249
250    smb_fdata(ndo, param, "BROWSE PACKET\n|Param ", param+paramlen, unicodestr);
251
252    switch (command) {
253    case 0xF:
254	data = smb_fdata(ndo, data,
255	    "BROWSE PACKET:\nType=[B] (LocalMasterAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
256	    maxbuf, unicodestr);
257	break;
258
259    case 0x1:
260	data = smb_fdata(ndo, data,
261	    "BROWSE PACKET:\nType=[B] (HostAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
262	    maxbuf, unicodestr);
263	break;
264
265    case 0x2:
266	data = smb_fdata(ndo, data,
267	    "BROWSE PACKET:\nType=[B] (AnnouncementRequest)\nFlags=[B]\nReplySystemName=[S]\n",
268	    maxbuf, unicodestr);
269	break;
270
271    case 0xc:
272	data = smb_fdata(ndo, data,
273	    "BROWSE PACKET:\nType=[B] (WorkgroupAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nCommentPointer=[W]\nServerName=[S]\n",
274	    maxbuf, unicodestr);
275	break;
276
277    case 0x8:
278	data = smb_fdata(ndo, data,
279	    "BROWSE PACKET:\nType=[B] (ElectionFrame)\nElectionVersion=[B]\nOSSummary=[W]\nUptime=[(W, W)]\nServerName=[S]\n",
280	    maxbuf, unicodestr);
281	break;
282
283    case 0xb:
284	data = smb_fdata(ndo, data,
285	    "BROWSE PACKET:\nType=[B] (BecomeBackupBrowser)\nName=[S]\n",
286	    maxbuf, unicodestr);
287	break;
288
289    case 0x9:
290	data = smb_fdata(ndo, data,
291	    "BROWSE PACKET:\nType=[B] (GetBackupList)\nListCount?=[B]\nToken=[W]\n",
292	    maxbuf, unicodestr);
293	break;
294
295    case 0xa:
296	data = smb_fdata(ndo, data,
297	    "BROWSE PACKET:\nType=[B] (BackupListResponse)\nServerCount?=[B]\nToken=[W]\n*Name=[S]\n",
298	    maxbuf, unicodestr);
299	break;
300
301    case 0xd:
302	data = smb_fdata(ndo, data,
303	    "BROWSE PACKET:\nType=[B] (MasterAnnouncement)\nMasterName=[S]\n",
304	    maxbuf, unicodestr);
305	break;
306
307    case 0xe:
308	data = smb_fdata(ndo, data,
309	    "BROWSE PACKET:\nType=[B] (ResetBrowser)\nOptions=[B]\n", maxbuf, unicodestr);
310	break;
311
312    default:
313	data = smb_fdata(ndo, data, "Unknown Browser Frame ", maxbuf, unicodestr);
314	break;
315    }
316    return;
317trunc:
318    ND_PRINT((ndo, "%s", tstr));
319}
320
321
322static void
323print_ipc(netdissect_options *ndo,
324          const u_char *param, int paramlen, const u_char *data, int datalen)
325{
326    if (paramlen)
327	smb_fdata(ndo, param, "Command=[w]\nStr1=[S]\nStr2=[S]\n", param + paramlen,
328	    unicodestr);
329    if (datalen)
330	smb_fdata(ndo, data, "IPC ", data + datalen, unicodestr);
331}
332
333
334static void
335print_trans(netdissect_options *ndo,
336            const u_char *words, const u_char *data1, const u_char *buf, const u_char *maxbuf)
337{
338    u_int bcc;
339    const char *f1, *f2, *f3, *f4;
340    const u_char *data, *param;
341    const u_char *w = words + 1;
342    int datalen, paramlen;
343
344    if (request) {
345	ND_TCHECK2(w[12 * 2], 2);
346	paramlen = EXTRACT_LE_16BITS(w + 9 * 2);
347	param = buf + EXTRACT_LE_16BITS(w + 10 * 2);
348	datalen = EXTRACT_LE_16BITS(w + 11 * 2);
349	data = buf + EXTRACT_LE_16BITS(w + 12 * 2);
350	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";
351	f2 = "|Name=[S]\n";
352	f3 = "|Param ";
353	f4 = "|Data ";
354    } else {
355	ND_TCHECK2(w[7 * 2], 2);
356	paramlen = EXTRACT_LE_16BITS(w + 3 * 2);
357	param = buf + EXTRACT_LE_16BITS(w + 4 * 2);
358	datalen = EXTRACT_LE_16BITS(w + 6 * 2);
359	data = buf + EXTRACT_LE_16BITS(w + 7 * 2);
360	f1 = "TotParamCnt=[d] \nTotDataCnt=[d] \nRes1=[d]\nParamCnt=[d] \nParamOff=[d] \nRes2=[d] \nDataCnt=[d] \nDataOff=[d] \nRes3=[d]\nLsetup=[d]\n";
361	f2 = "|Unknown ";
362	f3 = "|Param ";
363	f4 = "|Data ";
364    }
365
366    smb_fdata(ndo, words + 1, f1, min(words + 1 + 2 * words[0], maxbuf),
367        unicodestr);
368
369    ND_TCHECK2(*data1, 2);
370    bcc = EXTRACT_LE_16BITS(data1);
371    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
372    if (bcc > 0) {
373	smb_fdata(ndo, data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr);
374
375	if (strcmp((const char *)(data1 + 2), "\\MAILSLOT\\BROWSE") == 0) {
376	    print_browse(ndo, param, paramlen, data, datalen);
377	    return;
378	}
379
380	if (strcmp((const char *)(data1 + 2), "\\PIPE\\LANMAN") == 0) {
381	    print_ipc(ndo, param, paramlen, data, datalen);
382	    return;
383	}
384
385	if (paramlen)
386	    smb_fdata(ndo, param, f3, min(param + paramlen, maxbuf), unicodestr);
387	if (datalen)
388	    smb_fdata(ndo, data, f4, min(data + datalen, maxbuf), unicodestr);
389    }
390    return;
391trunc:
392    ND_PRINT((ndo, "%s", tstr));
393}
394
395
396static void
397print_negprot(netdissect_options *ndo,
398              const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
399{
400    u_int wct, bcc;
401    const char *f1 = NULL, *f2 = NULL;
402
403    ND_TCHECK(words[0]);
404    wct = words[0];
405    if (request)
406	f2 = "*|Dialect=[Y]\n";
407    else {
408	if (wct == 1)
409	    f1 = "Core Protocol\nDialectIndex=[d]";
410	else if (wct == 17)
411	    f1 = "NT1 Protocol\nDialectIndex=[d]\nSecMode=[B]\nMaxMux=[d]\nNumVcs=[d]\nMaxBuffer=[D]\nRawSize=[D]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[d]\nCryptKey=";
412	else if (wct == 13)
413	    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=";
414    }
415
416    if (f1)
417	smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf),
418	    unicodestr);
419    else
420	smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1)));
421
422    ND_TCHECK2(*data, 2);
423    bcc = EXTRACT_LE_16BITS(data);
424    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
425    if (bcc > 0) {
426	if (f2)
427	    smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
428		maxbuf), unicodestr);
429	else
430	    smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
431    }
432    return;
433trunc:
434    ND_PRINT((ndo, "%s", tstr));
435}
436
437static void
438print_sesssetup(netdissect_options *ndo,
439                const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
440{
441    u_int wct, bcc;
442    const char *f1 = NULL, *f2 = NULL;
443
444    ND_TCHECK(words[0]);
445    wct = words[0];
446    if (request) {
447	if (wct == 10)
448	    f1 = "Com2=[w]\nOff2=[d]\nBufSize=[d]\nMpxMax=[d]\nVcNum=[d]\nSessionKey=[W]\nPassLen=[d]\nCryptLen=[d]\nCryptOff=[d]\nPass&Name=\n";
449	else
450	    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";
451    } else {
452	if (wct == 3) {
453	    f1 = "Com2=[w]\nOff2=[d]\nAction=[w]\n";
454	} else if (wct == 13) {
455	    f1 = "Com2=[B]\nRes=[B]\nOff2=[d]\nAction=[w]\n";
456	    f2 = "NativeOS=[S]\nNativeLanMan=[S]\nPrimaryDomain=[S]\n";
457	}
458    }
459
460    if (f1)
461	smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf),
462	    unicodestr);
463    else
464	smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1)));
465
466    ND_TCHECK2(*data, 2);
467    bcc = EXTRACT_LE_16BITS(data);
468    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
469    if (bcc > 0) {
470	if (f2)
471	    smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
472		maxbuf), unicodestr);
473	else
474	    smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
475    }
476    return;
477trunc:
478    ND_PRINT((ndo, "%s", tstr));
479}
480
481static void
482print_lockingandx(netdissect_options *ndo,
483                  const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
484{
485    u_int wct, bcc;
486    const u_char *maxwords;
487    const char *f1 = NULL, *f2 = NULL;
488
489    ND_TCHECK(words[0]);
490    wct = words[0];
491    if (request) {
492	f1 = "Com2=[w]\nOff2=[d]\nHandle=[d]\nLockType=[w]\nTimeOut=[D]\nUnlockCount=[d]\nLockCount=[d]\n";
493	ND_TCHECK(words[7]);
494	if (words[7] & 0x10)
495	    f2 = "*Process=[d]\n[P2]Offset=[M]\nLength=[M]\n";
496	else
497	    f2 = "*Process=[d]\nOffset=[D]\nLength=[D]\n";
498    } else {
499	f1 = "Com2=[w]\nOff2=[d]\n";
500    }
501
502    maxwords = min(words + 1 + wct * 2, maxbuf);
503    if (wct)
504	smb_fdata(ndo, words + 1, f1, maxwords, unicodestr);
505
506    ND_TCHECK2(*data, 2);
507    bcc = EXTRACT_LE_16BITS(data);
508    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
509    if (bcc > 0) {
510	if (f2)
511	    smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data),
512		maxbuf), unicodestr);
513	else
514	    smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2)));
515    }
516    return;
517trunc:
518    ND_PRINT((ndo, "%s", tstr));
519}
520
521
522static const struct smbfns smb_fns[] = {
523    { -1, "SMBunknown", 0, DEFDESCRIPT },
524
525    { SMBtcon, "SMBtcon", 0,
526	{ NULL, "Path=[Z]\nPassword=[Z]\nDevice=[Z]\n",
527	  "MaxXmit=[d]\nTreeId=[d]\n", NULL,
528	  NULL } },
529
530    { SMBtdis, "SMBtdis", 0, DEFDESCRIPT },
531    { SMBexit,  "SMBexit", 0, DEFDESCRIPT },
532    { SMBioctl, "SMBioctl", 0, DEFDESCRIPT },
533
534    { SMBecho, "SMBecho", 0,
535	{ "ReverbCount=[d]\n", NULL,
536	  "SequenceNum=[d]\n", NULL,
537	  NULL } },
538
539    { SMBulogoffX, "SMBulogoffX", FLG_CHAIN, DEFDESCRIPT },
540
541    { SMBgetatr, "SMBgetatr", 0,
542	{ NULL, "Path=[Z]\n",
543	  "Attribute=[A]\nTime=[T2]Size=[D]\nRes=([w,w,w,w,w])\n", NULL,
544	  NULL } },
545
546    { SMBsetatr, "SMBsetatr", 0,
547	{ "Attribute=[A]\nTime=[T2]Res=([w,w,w,w,w])\n", "Path=[Z]\n",
548	  NULL, NULL, NULL } },
549
550    { SMBchkpth, "SMBchkpth", 0,
551       { NULL, "Path=[Z]\n", NULL, NULL, NULL } },
552
553    { SMBsearch, "SMBsearch", 0,
554	{ "Count=[d]\nAttrib=[A]\n",
555	  "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\n",
556	  "Count=[d]\n",
557	  "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",
558	  NULL } },
559
560    { SMBopen, "SMBopen", 0,
561	{ "Mode=[w]\nAttribute=[A]\n", "Path=[Z]\n",
562	  "Handle=[d]\nOAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\n",
563	  NULL, NULL } },
564
565    { SMBcreate, "SMBcreate", 0,
566	{ "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } },
567
568    { SMBmknew, "SMBmknew", 0,
569	{ "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } },
570
571    { SMBunlink, "SMBunlink", 0,
572	{ "Attrib=[A]\n", "Path=[Z]\n", NULL, NULL, NULL } },
573
574    { SMBread, "SMBread", 0,
575	{ "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
576	  "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } },
577
578    { SMBwrite, "SMBwrite", 0,
579	{ "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
580	  "Count=[d]\n", NULL, NULL } },
581
582    { SMBclose, "SMBclose", 0,
583	{ "Handle=[d]\nTime=[T2]", NULL, NULL, NULL, NULL } },
584
585    { SMBmkdir, "SMBmkdir", 0,
586	{ NULL, "Path=[Z]\n", NULL, NULL, NULL } },
587
588    { SMBrmdir, "SMBrmdir", 0,
589	{ NULL, "Path=[Z]\n", NULL, NULL, NULL } },
590
591    { SMBdskattr, "SMBdskattr", 0,
592	{ NULL, NULL,
593	  "TotalUnits=[d]\nBlocksPerUnit=[d]\nBlockSize=[d]\nFreeUnits=[d]\nMedia=[w]\n",
594	  NULL, NULL } },
595
596    { SMBmv, "SMBmv", 0,
597	{ "Attrib=[A]\n", "OldPath=[Z]\nNewPath=[Z]\n", NULL, NULL, NULL } },
598
599    /*
600     * this is a Pathworks specific call, allowing the
601     * changing of the root path
602     */
603    { pSETDIR, "SMBsetdir", 0, { NULL, "Path=[Z]\n", NULL, NULL, NULL } },
604
605    { SMBlseek, "SMBlseek", 0,
606	{ "Handle=[d]\nMode=[w]\nOffset=[D]\n", "Offset=[D]\n", NULL, NULL, NULL } },
607
608    { SMBflush, "SMBflush", 0, { "Handle=[d]\n", NULL, NULL, NULL, NULL } },
609
610    { SMBsplopen, "SMBsplopen", 0,
611	{ "SetupLen=[d]\nMode=[w]\n", "Ident=[Z]\n", "Handle=[d]\n",
612	  NULL, NULL } },
613
614    { SMBsplclose, "SMBsplclose", 0,
615	{ "Handle=[d]\n", NULL, NULL, NULL, NULL } },
616
617    { SMBsplretq, "SMBsplretq", 0,
618	{ "MaxCount=[d]\nStartIndex=[d]\n", NULL,
619	  "Count=[d]\nIndex=[d]\n",
620	  "*Time=[T2]Status=[B]\nJobID=[d]\nSize=[D]\nRes=[B]Name=[s16]\n",
621	  NULL } },
622
623    { SMBsplwr, "SMBsplwr", 0,
624	{ "Handle=[d]\n", NULL, NULL, NULL, NULL } },
625
626    { SMBlock, "SMBlock", 0,
627	{ "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },
628
629    { SMBunlock, "SMBunlock", 0,
630	{ "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },
631
632    /* CORE+ PROTOCOL FOLLOWS */
633
634    { SMBreadbraw, "SMBreadbraw", 0,
635	{ "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[d]\n",
636	  NULL, NULL, NULL, NULL } },
637
638    { SMBwritebraw, "SMBwritebraw", 0,
639	{ "Handle=[d]\nTotalCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\n|DataSize=[d]\nDataOff=[d]\n",
640	  NULL, "WriteRawAck", NULL, NULL } },
641
642    { SMBwritec, "SMBwritec", 0,
643	{ NULL, NULL, "Count=[d]\n", NULL, NULL } },
644
645    { SMBwriteclose, "SMBwriteclose", 0,
646	{ "Handle=[d]\nCount=[d]\nOffset=[D]\nTime=[T2]Res=([w,w,w,w,w,w])",
647	  NULL, "Count=[d]\n", NULL, NULL } },
648
649    { SMBlockread, "SMBlockread", 0,
650	{ "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
651	  "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } },
652
653    { SMBwriteunlock, "SMBwriteunlock", 0,
654	{ "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL,
655	  "Count=[d]\n", NULL, NULL } },
656
657    { SMBreadBmpx, "SMBreadBmpx", 0,
658	{ "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[w]\n",
659	  NULL,
660	  "Offset=[D]\nTotCount=[d]\nRemaining=[d]\nRes=([w,w])\nDataSize=[d]\nDataOff=[d]\n",
661	  NULL, NULL } },
662
663    { SMBwriteBmpx, "SMBwriteBmpx", 0,
664	{ "Handle=[d]\nTotCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\nDataSize=[d]\nDataOff=[d]\n", NULL,
665	  "Remaining=[d]\n", NULL, NULL } },
666
667    { SMBwriteBs, "SMBwriteBs", 0,
668	{ "Handle=[d]\nTotCount=[d]\nOffset=[D]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\n",
669	  NULL, "Count=[d]\n", NULL, NULL } },
670
671    { SMBsetattrE, "SMBsetattrE", 0,
672	{ "Handle=[d]\nCreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]", NULL,
673	  NULL, NULL, NULL } },
674
675    { SMBgetattrE, "SMBgetattrE", 0,
676	{ "Handle=[d]\n", NULL,
677	  "CreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]Size=[D]\nAllocSize=[D]\nAttribute=[A]\n",
678	  NULL, NULL } },
679
680    { SMBtranss, "SMBtranss", 0, DEFDESCRIPT },
681    { SMBioctls, "SMBioctls", 0, DEFDESCRIPT },
682
683    { SMBcopy, "SMBcopy", 0,
684	{ "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
685	  "CopyCount=[d]\n",  "|ErrStr=[S]\n",  NULL } },
686
687    { SMBmove, "SMBmove", 0,
688	{ "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
689	  "MoveCount=[d]\n",  "|ErrStr=[S]\n",  NULL } },
690
691    { SMBopenX, "SMBopenX", FLG_CHAIN,
692	{ "Com2=[w]\nOff2=[d]\nFlags=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]OFun=[w]\nSize=[D]\nTimeOut=[D]\nRes=[W]\n",
693	  "Path=[S]\n",
694	  "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",
695	  NULL, NULL } },
696
697    { SMBreadX, "SMBreadX", FLG_CHAIN,
698	{ "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nCountLeft=[d]\n",
699	  NULL,
700	  "Com2=[w]\nOff2=[d]\nRemaining=[d]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\nRes=([w,w,w,w])\n",
701	  NULL, NULL } },
702
703    { SMBwriteX, "SMBwriteX", FLG_CHAIN,
704	{ "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nCountLeft=[d]\nRes=[w]\nDataSize=[d]\nDataOff=[d]\n",
705	  NULL,
706	  "Com2=[w]\nOff2=[d]\nCount=[d]\nRemaining=[d]\nRes=[W]\n",
707	  NULL, NULL } },
708
709    { SMBffirst, "SMBffirst", 0,
710	{ "Count=[d]\nAttrib=[A]\n",
711	  "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
712	  "Count=[d]\n",
713	  "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",
714	  NULL } },
715
716    { SMBfunique, "SMBfunique", 0,
717	{ "Count=[d]\nAttrib=[A]\n",
718	  "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
719	  "Count=[d]\n",
720	  "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",
721	  NULL } },
722
723    { SMBfclose, "SMBfclose", 0,
724	{ "Count=[d]\nAttrib=[A]\n",
725	  "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n",
726	  "Count=[d]\n",
727	  "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",
728	  NULL } },
729
730    { SMBfindnclose, "SMBfindnclose", 0,
731	{ "Handle=[d]\n", NULL, NULL, NULL, NULL } },
732
733    { SMBfindclose, "SMBfindclose", 0,
734	{ "Handle=[d]\n", NULL, NULL, NULL, NULL } },
735
736    { SMBsends, "SMBsends", 0,
737	{ NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } },
738
739    { SMBsendstrt, "SMBsendstrt", 0,
740	{ NULL, "Source=[Z]\nDest=[Z]\n", "GroupID=[d]\n", NULL, NULL } },
741
742    { SMBsendend, "SMBsendend", 0,
743	{ "GroupID=[d]\n", NULL, NULL, NULL, NULL } },
744
745    { SMBsendtxt, "SMBsendtxt", 0,
746	{ "GroupID=[d]\n", NULL, NULL, NULL, NULL } },
747
748    { SMBsendb, "SMBsendb", 0,
749	{ NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } },
750
751    { SMBfwdname, "SMBfwdname", 0, DEFDESCRIPT },
752    { SMBcancelf, "SMBcancelf", 0, DEFDESCRIPT },
753    { SMBgetmac, "SMBgetmac", 0, DEFDESCRIPT },
754
755    { SMBnegprot, "SMBnegprot", 0,
756	{ NULL, NULL, NULL, NULL, print_negprot } },
757
758    { SMBsesssetupX, "SMBsesssetupX", FLG_CHAIN,
759	{ NULL, NULL, NULL, NULL, print_sesssetup } },
760
761    { SMBtconX, "SMBtconX", FLG_CHAIN,
762	{ "Com2=[w]\nOff2=[d]\nFlags=[w]\nPassLen=[d]\nPasswd&Path&Device=\n",
763	  NULL, "Com2=[w]\nOff2=[d]\n", "ServiceType=[R]\n", NULL } },
764
765    { SMBlockingX, "SMBlockingX", FLG_CHAIN,
766	{ NULL, NULL, NULL, NULL, print_lockingandx } },
767
768    { SMBtrans2, "SMBtrans2", 0, { NULL, NULL, NULL, NULL, print_trans2 } },
769
770    { SMBtranss2, "SMBtranss2", 0, DEFDESCRIPT },
771    { SMBctemp, "SMBctemp", 0, DEFDESCRIPT },
772    { SMBreadBs, "SMBreadBs", 0, DEFDESCRIPT },
773    { SMBtrans, "SMBtrans", 0, { NULL, NULL, NULL, NULL, print_trans } },
774
775    { SMBnttrans, "SMBnttrans", 0, DEFDESCRIPT },
776    { SMBnttranss, "SMBnttranss", 0, DEFDESCRIPT },
777
778    { SMBntcreateX, "SMBntcreateX", FLG_CHAIN,
779	{ "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",
780	  "Path=[C]\n",
781	  "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",
782	  NULL, NULL } },
783
784    { SMBntcancel, "SMBntcancel", 0, DEFDESCRIPT },
785
786    { -1, NULL, 0, DEFDESCRIPT }
787};
788
789
790/*
791 * print a SMB message
792 */
793static void
794print_smb(netdissect_options *ndo,
795          const u_char *buf, const u_char *maxbuf)
796{
797    uint16_t flags2;
798    int nterrcodes;
799    int command;
800    uint32_t nterror;
801    const u_char *words, *maxwords, *data;
802    const struct smbfns *fn;
803    const char *fmt_smbheader =
804        "[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";
805    int smboffset;
806
807    ND_TCHECK(buf[9]);
808    request = (buf[9] & 0x80) ? 0 : 1;
809    startbuf = buf;
810
811    command = buf[4];
812
813    fn = smbfind(command, smb_fns);
814
815    if (ndo->ndo_vflag > 1)
816	ND_PRINT((ndo, "\n"));
817
818    ND_PRINT((ndo, "SMB PACKET: %s (%s)\n", fn->name, request ? "REQUEST" : "REPLY"));
819
820    if (ndo->ndo_vflag < 2)
821	return;
822
823    ND_TCHECK_16BITS(&buf[10]);
824    flags2 = EXTRACT_LE_16BITS(&buf[10]);
825    unicodestr = flags2 & 0x8000;
826    nterrcodes = flags2 & 0x4000;
827
828    /* print out the header */
829    smb_fdata(ndo, buf, fmt_smbheader, buf + 33, unicodestr);
830
831    if (nterrcodes) {
832    	nterror = EXTRACT_LE_32BITS(&buf[5]);
833	if (nterror)
834	    ND_PRINT((ndo, "NTError = %s\n", nt_errstr(nterror)));
835    } else {
836	if (buf[5])
837	    ND_PRINT((ndo, "SMBError = %s\n", smb_errstr(buf[5], EXTRACT_LE_16BITS(&buf[7]))));
838    }
839
840    smboffset = 32;
841
842    for (;;) {
843	const char *f1, *f2;
844	int wct;
845	u_int bcc;
846	int newsmboffset;
847
848	words = buf + smboffset;
849	ND_TCHECK(words[0]);
850	wct = words[0];
851	data = words + 1 + wct * 2;
852	maxwords = min(data, maxbuf);
853
854	if (request) {
855	    f1 = fn->descript.req_f1;
856	    f2 = fn->descript.req_f2;
857	} else {
858	    f1 = fn->descript.rep_f1;
859	    f2 = fn->descript.rep_f2;
860	}
861
862	if (fn->descript.fn)
863	    (*fn->descript.fn)(ndo, words, data, buf, maxbuf);
864	else {
865	    if (wct) {
866		if (f1)
867		    smb_fdata(ndo, words + 1, f1, words + 1 + wct * 2, unicodestr);
868		else {
869		    int i;
870		    int v;
871
872		    for (i = 0; &words[1 + 2 * i] < maxwords; i++) {
873			ND_TCHECK2(words[1 + 2 * i], 2);
874			v = EXTRACT_LE_16BITS(words + 1 + 2 * i);
875			ND_PRINT((ndo, "smb_vwv[%d]=%d (0x%X)\n", i, v, v));
876		    }
877		}
878	    }
879
880	    ND_TCHECK2(*data, 2);
881	    bcc = EXTRACT_LE_16BITS(data);
882	    ND_PRINT((ndo, "smb_bcc=%u\n", bcc));
883	    if (f2) {
884		if (bcc > 0)
885		    smb_fdata(ndo, data + 2, f2, data + 2 + bcc, unicodestr);
886	    } else {
887		if (bcc > 0) {
888		    ND_PRINT((ndo, "smb_buf[]=\n"));
889		    smb_print_data(ndo, data + 2, min(bcc, PTR_DIFF(maxbuf, data + 2)));
890		}
891	    }
892	}
893
894	if ((fn->flags & FLG_CHAIN) == 0)
895	    break;
896	if (wct == 0)
897	    break;
898	ND_TCHECK(words[1]);
899	command = words[1];
900	if (command == 0xFF)
901	    break;
902	ND_TCHECK2(words[3], 2);
903	newsmboffset = EXTRACT_LE_16BITS(words + 3);
904
905	fn = smbfind(command, smb_fns);
906
907	ND_PRINT((ndo, "\nSMB PACKET: %s (%s) (CHAINED)\n",
908	    fn->name, request ? "REQUEST" : "REPLY"));
909	if (newsmboffset <= smboffset) {
910	    ND_PRINT((ndo, "Bad andX offset: %u <= %u\n", newsmboffset, smboffset));
911	    break;
912	}
913	smboffset = newsmboffset;
914    }
915
916    ND_PRINT((ndo, "\n"));
917    return;
918trunc:
919    ND_PRINT((ndo, "%s", tstr));
920}
921
922
923/*
924 * print a NBT packet received across tcp on port 139
925 */
926void
927nbt_tcp_print(netdissect_options *ndo,
928              const u_char *data, int length)
929{
930    int caplen;
931    int type;
932    u_int nbt_len;
933    const u_char *maxbuf;
934
935    if (length < 4)
936	goto trunc;
937    if (ndo->ndo_snapend < data)
938	goto trunc;
939    caplen = ndo->ndo_snapend - data;
940    if (caplen < 4)
941	goto trunc;
942    maxbuf = data + caplen;
943    type = data[0];
944    nbt_len = EXTRACT_16BITS(data + 2);
945    length -= 4;
946    caplen -= 4;
947
948    startbuf = data;
949
950    if (ndo->ndo_vflag < 2) {
951	ND_PRINT((ndo, " NBT Session Packet: "));
952	switch (type) {
953	case 0x00:
954	    ND_PRINT((ndo, "Session Message"));
955	    break;
956
957	case 0x81:
958	    ND_PRINT((ndo, "Session Request"));
959	    break;
960
961	case 0x82:
962	    ND_PRINT((ndo, "Session Granted"));
963	    break;
964
965	case 0x83:
966	  {
967	    int ecode;
968
969	    if (nbt_len < 4)
970		goto trunc;
971	    if (length < 4)
972		goto trunc;
973	    if (caplen < 4)
974		goto trunc;
975	    ecode = data[4];
976
977	    ND_PRINT((ndo, "Session Reject, "));
978	    switch (ecode) {
979	    case 0x80:
980		ND_PRINT((ndo, "Not listening on called name"));
981		break;
982	    case 0x81:
983		ND_PRINT((ndo, "Not listening for calling name"));
984		break;
985	    case 0x82:
986		ND_PRINT((ndo, "Called name not present"));
987		break;
988	    case 0x83:
989		ND_PRINT((ndo, "Called name present, but insufficient resources"));
990		break;
991	    default:
992		ND_PRINT((ndo, "Unspecified error 0x%X", ecode));
993		break;
994	    }
995	  }
996	    break;
997
998	case 0x85:
999	    ND_PRINT((ndo, "Session Keepalive"));
1000	    break;
1001
1002	default:
1003	    data = smb_fdata(ndo, data, "Unknown packet type [rB]", maxbuf, 0);
1004	    break;
1005	}
1006    } else {
1007	ND_PRINT((ndo, "\n>>> NBT Session Packet\n"));
1008	switch (type) {
1009	case 0x00:
1010	    data = smb_fdata(ndo, data, "[P1]NBT Session Message\nFlags=[B]\nLength=[rd]\n",
1011		data + 4, 0);
1012	    if (data == NULL)
1013		break;
1014	    if (nbt_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
1015		if ((int)nbt_len > caplen) {
1016		    if ((int)nbt_len > length)
1017			ND_PRINT((ndo, "WARNING: Packet is continued in later TCP segments\n"));
1018		    else
1019			ND_PRINT((ndo, "WARNING: Short packet. Try increasing the snap length by %d\n",
1020			    nbt_len - caplen));
1021		}
1022		print_smb(ndo, data, maxbuf > data + nbt_len ? data + nbt_len : maxbuf);
1023	    } else
1024		ND_PRINT((ndo, "Session packet:(raw data or continuation?)\n"));
1025	    break;
1026
1027	case 0x81:
1028	    data = smb_fdata(ndo, data,
1029		"[P1]NBT Session Request\nFlags=[B]\nLength=[rd]\nDestination=[n1]\nSource=[n1]\n",
1030		maxbuf, 0);
1031	    break;
1032
1033	case 0x82:
1034	    data = smb_fdata(ndo, data, "[P1]NBT Session Granted\nFlags=[B]\nLength=[rd]\n", maxbuf, 0);
1035	    break;
1036
1037	case 0x83:
1038	  {
1039	    const u_char *origdata;
1040	    int ecode;
1041
1042	    origdata = data;
1043	    data = smb_fdata(ndo, data, "[P1]NBT SessionReject\nFlags=[B]\nLength=[rd]\nReason=[B]\n",
1044		maxbuf, 0);
1045	    if (data == NULL)
1046		break;
1047	    if (nbt_len >= 1 && caplen >= 1) {
1048		ecode = origdata[4];
1049		switch (ecode) {
1050		case 0x80:
1051		    ND_PRINT((ndo, "Not listening on called name\n"));
1052		    break;
1053		case 0x81:
1054		    ND_PRINT((ndo, "Not listening for calling name\n"));
1055		    break;
1056		case 0x82:
1057		    ND_PRINT((ndo, "Called name not present\n"));
1058		    break;
1059		case 0x83:
1060		    ND_PRINT((ndo, "Called name present, but insufficient resources\n"));
1061		    break;
1062		default:
1063		    ND_PRINT((ndo, "Unspecified error 0x%X\n", ecode));
1064		    break;
1065		}
1066	    }
1067	  }
1068	    break;
1069
1070	case 0x85:
1071	    data = smb_fdata(ndo, data, "[P1]NBT Session Keepalive\nFlags=[B]\nLength=[rd]\n", maxbuf, 0);
1072	    break;
1073
1074	default:
1075	    data = smb_fdata(ndo, data, "NBT - Unknown packet type\nType=[B]\n", maxbuf, 0);
1076	    break;
1077	}
1078	ND_PRINT((ndo, "\n"));
1079    }
1080    return;
1081trunc:
1082    ND_PRINT((ndo, "%s", tstr));
1083}
1084
1085static const struct tok opcode_str[] = {
1086	{ 0,  "QUERY"                   },
1087	{ 5,  "REGISTRATION"            },
1088	{ 6,  "RELEASE"                 },
1089	{ 7,  "WACK"                    },
1090	{ 8,  "REFRESH(8)"              },
1091	{ 9,  "REFRESH"                 },
1092	{ 15, "MULTIHOMED REGISTRATION" },
1093	{ 0, NULL }
1094};
1095
1096/*
1097 * print a NBT packet received across udp on port 137
1098 */
1099void
1100nbt_udp137_print(netdissect_options *ndo,
1101                 const u_char *data, int length)
1102{
1103    const u_char *maxbuf = data + length;
1104    int name_trn_id, response, opcode, nm_flags, rcode;
1105    int qdcount, ancount, nscount, arcount;
1106    const u_char *p;
1107    int total, i;
1108
1109    ND_TCHECK2(data[10], 2);
1110    name_trn_id = EXTRACT_16BITS(data);
1111    response = (data[2] >> 7);
1112    opcode = (data[2] >> 3) & 0xF;
1113    nm_flags = ((data[2] & 0x7) << 4) + (data[3] >> 4);
1114    rcode = data[3] & 0xF;
1115    qdcount = EXTRACT_16BITS(data + 4);
1116    ancount = EXTRACT_16BITS(data + 6);
1117    nscount = EXTRACT_16BITS(data + 8);
1118    arcount = EXTRACT_16BITS(data + 10);
1119    startbuf = data;
1120
1121    if (maxbuf <= data)
1122	return;
1123
1124    if (ndo->ndo_vflag > 1)
1125	ND_PRINT((ndo, "\n>>> "));
1126
1127    ND_PRINT((ndo, "NBT UDP PACKET(137): %s", tok2str(opcode_str, "OPUNKNOWN", opcode)));
1128    if (response) {
1129        ND_PRINT((ndo, "; %s", rcode ? "NEGATIVE" : "POSITIVE"));
1130    }
1131    ND_PRINT((ndo, "; %s; %s", response ? "RESPONSE" : "REQUEST",
1132              (nm_flags & 1) ? "BROADCAST" : "UNICAST"));
1133
1134    if (ndo->ndo_vflag < 2)
1135	return;
1136
1137    ND_PRINT((ndo, "\nTrnID=0x%X\nOpCode=%d\nNmFlags=0x%X\nRcode=%d\nQueryCount=%d\nAnswerCount=%d\nAuthorityCount=%d\nAddressRecCount=%d\n",
1138	name_trn_id, opcode, nm_flags, rcode, qdcount, ancount, nscount,
1139	arcount));
1140
1141    p = data + 12;
1142
1143    total = ancount + nscount + arcount;
1144
1145    if (qdcount > 100 || total > 100) {
1146	ND_PRINT((ndo, "Corrupt packet??\n"));
1147	return;
1148    }
1149
1150    if (qdcount) {
1151	ND_PRINT((ndo, "QuestionRecords:\n"));
1152	for (i = 0; i < qdcount; i++) {
1153	    p = smb_fdata(ndo, p,
1154		"|Name=[n1]\nQuestionType=[rw]\nQuestionClass=[rw]\n#",
1155		maxbuf, 0);
1156	    if (p == NULL)
1157		goto out;
1158	}
1159    }
1160
1161    if (total) {
1162	ND_PRINT((ndo, "\nResourceRecords:\n"));
1163	for (i = 0; i < total; i++) {
1164	    int rdlen;
1165	    int restype;
1166
1167	    p = smb_fdata(ndo, p, "Name=[n1]\n#", maxbuf, 0);
1168	    if (p == NULL)
1169		goto out;
1170	    ND_TCHECK_16BITS(p);
1171	    restype = EXTRACT_16BITS(p);
1172	    p = smb_fdata(ndo, p, "ResType=[rw]\nResClass=[rw]\nTTL=[rD]\n", p + 8, 0);
1173	    if (p == NULL)
1174		goto out;
1175	    ND_TCHECK_16BITS(p);
1176	    rdlen = EXTRACT_16BITS(p);
1177	    ND_PRINT((ndo, "ResourceLength=%d\nResourceData=\n", rdlen));
1178	    p += 2;
1179	    if (rdlen == 6) {
1180		p = smb_fdata(ndo, p, "AddrType=[rw]\nAddress=[b.b.b.b]\n", p + rdlen, 0);
1181		if (p == NULL)
1182		    goto out;
1183	    } else {
1184		if (restype == 0x21) {
1185		    int numnames;
1186
1187		    ND_TCHECK(*p);
1188		    numnames = p[0];
1189		    p = smb_fdata(ndo, p, "NumNames=[B]\n", p + 1, 0);
1190		    if (p == NULL)
1191			goto out;
1192		    while (numnames--) {
1193			p = smb_fdata(ndo, p, "Name=[n2]\t#", maxbuf, 0);
1194			if (p == NULL)
1195			    goto out;
1196			ND_TCHECK(*p);
1197			if (p[0] & 0x80)
1198			    ND_PRINT((ndo, "<GROUP> "));
1199			switch (p[0] & 0x60) {
1200			case 0x00: ND_PRINT((ndo, "B ")); break;
1201			case 0x20: ND_PRINT((ndo, "P ")); break;
1202			case 0x40: ND_PRINT((ndo, "M ")); break;
1203			case 0x60: ND_PRINT((ndo, "_ ")); break;
1204			}
1205			if (p[0] & 0x10)
1206			    ND_PRINT((ndo, "<DEREGISTERING> "));
1207			if (p[0] & 0x08)
1208			    ND_PRINT((ndo, "<CONFLICT> "));
1209			if (p[0] & 0x04)
1210			    ND_PRINT((ndo, "<ACTIVE> "));
1211			if (p[0] & 0x02)
1212			    ND_PRINT((ndo, "<PERMANENT> "));
1213			ND_PRINT((ndo, "\n"));
1214			p += 2;
1215		    }
1216		} else {
1217		    smb_print_data(ndo, p, min(rdlen, length - (p - data)));
1218		    p += rdlen;
1219		}
1220	    }
1221	}
1222    }
1223
1224    if (p < maxbuf)
1225	smb_fdata(ndo, p, "AdditionalData:\n", maxbuf, 0);
1226
1227out:
1228    ND_PRINT((ndo, "\n"));
1229    return;
1230trunc:
1231    ND_PRINT((ndo, "%s", tstr));
1232}
1233
1234/*
1235 * Print an SMB-over-TCP packet received across tcp on port 445
1236 */
1237void
1238smb_tcp_print(netdissect_options *ndo,
1239              const u_char * data, int length)
1240{
1241    int caplen;
1242    u_int smb_len;
1243    const u_char *maxbuf;
1244
1245    if (length < 4)
1246	goto trunc;
1247    if (ndo->ndo_snapend < data)
1248	goto trunc;
1249    caplen = ndo->ndo_snapend - data;
1250    if (caplen < 4)
1251	goto trunc;
1252    maxbuf = data + caplen;
1253    smb_len = EXTRACT_24BITS(data + 1);
1254    length -= 4;
1255    caplen -= 4;
1256
1257    startbuf = data;
1258    data += 4;
1259
1260    if (smb_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
1261	if ((int)smb_len > caplen) {
1262	    if ((int)smb_len > length)
1263		ND_PRINT((ndo, " WARNING: Packet is continued in later TCP segments\n"));
1264	    else
1265		ND_PRINT((ndo, " WARNING: Short packet. Try increasing the snap length by %d\n",
1266		    smb_len - caplen));
1267	} else
1268	    ND_PRINT((ndo, " "));
1269	print_smb(ndo, data, maxbuf > data + smb_len ? data + smb_len : maxbuf);
1270    } else
1271	ND_PRINT((ndo, " SMB-over-TCP packet:(raw data or continuation?)\n"));
1272    return;
1273trunc:
1274    ND_PRINT((ndo, "%s", tstr));
1275}
1276
1277/*
1278 * print a NBT packet received across udp on port 138
1279 */
1280void
1281nbt_udp138_print(netdissect_options *ndo,
1282                 const u_char *data, int length)
1283{
1284    const u_char *maxbuf = data + length;
1285
1286    if (maxbuf > ndo->ndo_snapend)
1287	maxbuf = ndo->ndo_snapend;
1288    if (maxbuf <= data)
1289	return;
1290    startbuf = data;
1291
1292    if (ndo->ndo_vflag < 2) {
1293	ND_PRINT((ndo, "NBT UDP PACKET(138)"));
1294	return;
1295    }
1296
1297    data = smb_fdata(ndo, data,
1298	"\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#",
1299	maxbuf, 0);
1300
1301    if (data != NULL) {
1302	/* If there isn't enough data for "\377SMB", don't check for it. */
1303	if (&data[3] >= maxbuf)
1304	    goto out;
1305
1306	if (memcmp(data, "\377SMB",4) == 0)
1307	    print_smb(ndo, data, maxbuf);
1308    }
1309out:
1310    ND_PRINT((ndo, "\n"));
1311}
1312
1313
1314/*
1315   print netbeui frames
1316*/
1317static struct nbf_strings {
1318	const char	*name;
1319	const char	*nonverbose;
1320	const char	*verbose;
1321} nbf_strings[0x20] = {
1322	{ "Add Group Name Query", ", [P23]Name to add=[n2]#",
1323	  "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" },
1324	{ "Add Name Query", ", [P23]Name to add=[n2]#",
1325	  "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" },
1326	{ "Name In Conflict", NULL, NULL },
1327	{ "Status Query", NULL, NULL },
1328	{ NULL, NULL, NULL },	/* not used */
1329	{ NULL, NULL, NULL },	/* not used */
1330	{ NULL, NULL, NULL },	/* not used */
1331	{ "Terminate Trace", NULL, NULL },
1332	{ "Datagram", NULL,
1333	  "[P7]Destination=[n2]\nSource=[n2]\n" },
1334	{ "Broadcast Datagram", NULL,
1335	  "[P7]Destination=[n2]\nSource=[n2]\n" },
1336	{ "Name Query", ", [P7]Name=[n2]#",
1337	  "[P1]SessionNumber=[B]\nNameType=[B][P2]\nResponseCorrelator=[w]\nName=[n2]\nName of sender=[n2]\n" },
1338	{ NULL, NULL, NULL },	/* not used */
1339	{ NULL, NULL, NULL },	/* not used */
1340	{ "Add Name Response", ", [P1]GroupName=[w] [P4]Destination=[n2] Source=[n2]#",
1341	  "AddNameInProcess=[B]\nGroupName=[w]\nTransmitCorrelator=[w][P2]\nDestination=[n2]\nSource=[n2]\n" },
1342	{ "Name Recognized", NULL,
1343	  "[P1]Data2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nDestination=[n2]\nSource=[n2]\n" },
1344	{ "Status Response", NULL, NULL },
1345	{ NULL, NULL, NULL },	/* not used */
1346	{ NULL, NULL, NULL },	/* not used */
1347	{ NULL, NULL, NULL },	/* not used */
1348	{ "Terminate Trace", NULL, NULL },
1349	{ "Data Ack", NULL,
1350	  "[P3]TransmitCorrelator=[w][P2]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1351	{ "Data First/Middle", NULL,
1352	  "Flags=[{RECEIVE_CONTINUE|NO_ACK||PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1353	{ "Data Only/Last", NULL,
1354	  "Flags=[{|NO_ACK|PIGGYBACK_ACK_ALLOWED|PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1355	{ "Session Confirm", NULL,
1356	  "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1357	{ "Session End", NULL,
1358	  "[P1]Data2=[w][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1359	{ "Session Initialize", NULL,
1360	  "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1361	{ "No Receive", NULL,
1362	  "Flags=[{|SEND_NO_ACK}]\nDataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1363	{ "Receive Outstanding", NULL,
1364	  "[P1]DataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1365	{ "Receive Continue", NULL,
1366	  "[P2]TransmitCorrelator=[w]\n[P2]RemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" },
1367	{ NULL, NULL, NULL },	/* not used */
1368	{ NULL, NULL, NULL },	/* not used */
1369	{ "Session Alive", NULL, NULL }
1370};
1371
1372void
1373netbeui_print(netdissect_options *ndo,
1374              u_short control, const u_char *data, int length)
1375{
1376    const u_char *maxbuf = data + length;
1377    int len;
1378    int command;
1379    const u_char *data2;
1380    int is_truncated = 0;
1381
1382    if (maxbuf > ndo->ndo_snapend)
1383	maxbuf = ndo->ndo_snapend;
1384    ND_TCHECK(data[4]);
1385    len = EXTRACT_LE_16BITS(data);
1386    command = data[4];
1387    data2 = data + len;
1388    if (data2 >= maxbuf) {
1389	data2 = maxbuf;
1390	is_truncated = 1;
1391    }
1392
1393    startbuf = data;
1394
1395    if (ndo->ndo_vflag < 2) {
1396	ND_PRINT((ndo, "NBF Packet: "));
1397	data = smb_fdata(ndo, data, "[P5]#", maxbuf, 0);
1398    } else {
1399	ND_PRINT((ndo, "\n>>> NBF Packet\nType=0x%X ", control));
1400	data = smb_fdata(ndo, data, "Length=[d] Signature=[w] Command=[B]\n#", maxbuf, 0);
1401    }
1402    if (data == NULL)
1403	goto out;
1404
1405    if (command > 0x1f || nbf_strings[command].name == NULL) {
1406	if (ndo->ndo_vflag < 2)
1407	    data = smb_fdata(ndo, data, "Unknown NBF Command#", data2, 0);
1408	else
1409	    data = smb_fdata(ndo, data, "Unknown NBF Command\n", data2, 0);
1410    } else {
1411	if (ndo->ndo_vflag < 2) {
1412	    ND_PRINT((ndo, "%s", nbf_strings[command].name));
1413	    if (nbf_strings[command].nonverbose != NULL)
1414		data = smb_fdata(ndo, data, nbf_strings[command].nonverbose, data2, 0);
1415	} else {
1416	    ND_PRINT((ndo, "%s:\n", nbf_strings[command].name));
1417	    if (nbf_strings[command].verbose != NULL)
1418		data = smb_fdata(ndo, data, nbf_strings[command].verbose, data2, 0);
1419	    else
1420		ND_PRINT((ndo, "\n"));
1421	}
1422    }
1423
1424    if (ndo->ndo_vflag < 2)
1425	return;
1426
1427    if (data == NULL)
1428	goto out;
1429
1430    if (is_truncated) {
1431	/* data2 was past the end of the buffer */
1432	goto out;
1433    }
1434
1435    /* If this isn't a command that would contain an SMB message, quit. */
1436    if (command != 0x08 && command != 0x09 && command != 0x15 &&
1437        command != 0x16)
1438	goto out;
1439
1440    /* If there isn't enough data for "\377SMB", don't look for it. */
1441    if (&data2[3] >= maxbuf)
1442	goto out;
1443
1444    if (memcmp(data2, "\377SMB",4) == 0)
1445	print_smb(ndo, data2, maxbuf);
1446    else {
1447	int i;
1448	for (i = 0; i < 128; i++) {
1449	    if (&data2[i + 3] >= maxbuf)
1450		break;
1451	    if (memcmp(&data2[i], "\377SMB", 4) == 0) {
1452		ND_PRINT((ndo, "found SMB packet at %d\n", i));
1453		print_smb(ndo, &data2[i], maxbuf);
1454		break;
1455	    }
1456	}
1457    }
1458
1459out:
1460    ND_PRINT((ndo, "\n"));
1461    return;
1462trunc:
1463    ND_PRINT((ndo, "%s", tstr));
1464}
1465
1466
1467/*
1468 * print IPX-Netbios frames
1469 */
1470void
1471ipx_netbios_print(netdissect_options *ndo,
1472                  const u_char *data, u_int length)
1473{
1474    /*
1475     * this is a hack till I work out how to parse the rest of the
1476     * NetBIOS-over-IPX stuff
1477     */
1478    int i;
1479    const u_char *maxbuf;
1480
1481    maxbuf = data + length;
1482    /* Don't go past the end of the captured data in the packet. */
1483    if (maxbuf > ndo->ndo_snapend)
1484	maxbuf = ndo->ndo_snapend;
1485    startbuf = data;
1486    for (i = 0; i < 128; i++) {
1487	if (&data[i + 4] > maxbuf)
1488	    break;
1489	if (memcmp(&data[i], "\377SMB", 4) == 0) {
1490	    smb_fdata(ndo, data, "\n>>> IPX transport ", &data[i], 0);
1491	    print_smb(ndo, &data[i], maxbuf);
1492	    ND_PRINT((ndo, "\n"));
1493	    break;
1494	}
1495    }
1496    if (i == 128)
1497	smb_fdata(ndo, data, "\n>>> Unknown IPX ", maxbuf, 0);
1498}
1499