1482 lines
42 KiB
C
1482 lines
42 KiB
C
/*
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* Copyright (C) Andrew Tridgell 1995-1999
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*
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* This software may be distributed either under the terms of the
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* BSD-style license that accompanies tcpdump or the GNU GPL version 2
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* or later
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: print-smb.c,v 1.9 2023/08/17 20:19:40 christos Exp $");
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#endif
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/* \summary: SMB/CIFS printer */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "netdissect-stdinc.h"
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#include <string.h>
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#include "netdissect.h"
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#include "extract.h"
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#include "smb.h"
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static int request = 0;
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static int unicodestr = 0;
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extern const u_char *startbuf;
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const u_char *startbuf = NULL;
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struct smbdescript {
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const char *req_f1;
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const char *req_f2;
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const char *rep_f1;
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const char *rep_f2;
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void (*fn)(netdissect_options *, const u_char *, const u_char *, const u_char *, const u_char *);
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};
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struct smbdescriptint {
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const char *req_f1;
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const char *req_f2;
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const char *rep_f1;
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const char *rep_f2;
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void (*fn)(netdissect_options *, const u_char *, const u_char *, u_int, u_int);
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};
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struct smbfns
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{
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int id;
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const char *name;
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int flags;
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struct smbdescript descript;
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};
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struct smbfnsint
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{
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int id;
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const char *name;
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int flags;
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struct smbdescriptint descript;
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};
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#define DEFDESCRIPT { NULL, NULL, NULL, NULL, NULL }
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#define FLG_CHAIN (1 << 0)
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static const struct smbfns *
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smbfind(int id, const struct smbfns *list)
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{
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int sindex;
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for (sindex = 0; list[sindex].name; sindex++)
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if (list[sindex].id == id)
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return(&list[sindex]);
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return(&list[0]);
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}
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static const struct smbfnsint *
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smbfindint(int id, const struct smbfnsint *list)
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{
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int sindex;
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for (sindex = 0; list[sindex].name; sindex++)
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if (list[sindex].id == id)
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return(&list[sindex]);
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return(&list[0]);
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}
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static void
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trans2_findfirst(netdissect_options *ndo,
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const u_char *param, const u_char *data, u_int pcnt, u_int dcnt)
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{
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const char *fmt;
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if (request)
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fmt = "Attribute=[A]\nSearchCount=[u]\nFlags=[w]\nLevel=[uP4]\nFile=[S]\n";
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else
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fmt = "Handle=[w]\nCount=[u]\nEOS=[w]\nEoffset=[u]\nLastNameOfs=[w]\n";
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smb_fdata(ndo, param, fmt, param + pcnt, unicodestr);
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if (dcnt) {
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ND_PRINT("data:\n");
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smb_data_print(ndo, data, dcnt);
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}
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}
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static void
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trans2_qfsinfo(netdissect_options *ndo,
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const u_char *param, const u_char *data, u_int pcnt, u_int dcnt)
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{
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static u_int level = 0;
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const char *fmt="";
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if (request) {
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level = GET_LE_U_2(param);
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fmt = "InfoLevel=[u]\n";
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smb_fdata(ndo, param, fmt, param + pcnt, unicodestr);
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} else {
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switch (level) {
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case 1:
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fmt = "idFileSystem=[W]\nSectorUnit=[U]\nUnit=[U]\nAvail=[U]\nSectorSize=[u]\n";
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break;
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case 2:
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fmt = "CreationTime=[T2]VolNameLength=[lb]\nVolumeLabel=[c]\n";
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break;
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case 0x105:
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fmt = "Capabilities=[W]\nMaxFileLen=[U]\nVolNameLen=[lU]\nVolume=[C]\n";
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break;
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default:
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fmt = "UnknownLevel\n";
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break;
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}
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smb_fdata(ndo, data, fmt, data + dcnt, unicodestr);
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}
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if (dcnt) {
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ND_PRINT("data:\n");
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smb_data_print(ndo, data, dcnt);
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}
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}
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static const struct smbfnsint trans2_fns[] = {
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{ 0, "TRANSACT2_OPEN", 0,
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{ "Flags2=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]\nOFun=[w]\nSize=[U]\nRes=([w, w, w, w, w])\nPath=[S]",
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NULL,
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"Handle=[u]\nAttrib=[A]\nTime=[T2]\nSize=[U]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nInode=[W]\nOffErr=[u]\n|EALength=[u]\n",
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NULL, NULL }},
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{ 1, "TRANSACT2_FINDFIRST", 0,
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{ NULL, NULL, NULL, NULL, trans2_findfirst }},
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{ 2, "TRANSACT2_FINDNEXT", 0, DEFDESCRIPT },
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{ 3, "TRANSACT2_QFSINFO", 0,
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{ NULL, NULL, NULL, NULL, trans2_qfsinfo }},
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{ 4, "TRANSACT2_SETFSINFO", 0, DEFDESCRIPT },
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{ 5, "TRANSACT2_QPATHINFO", 0, DEFDESCRIPT },
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{ 6, "TRANSACT2_SETPATHINFO", 0, DEFDESCRIPT },
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{ 7, "TRANSACT2_QFILEINFO", 0, DEFDESCRIPT },
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{ 8, "TRANSACT2_SETFILEINFO", 0, DEFDESCRIPT },
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{ 9, "TRANSACT2_FSCTL", 0, DEFDESCRIPT },
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{ 10, "TRANSACT2_IOCTL", 0, DEFDESCRIPT },
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{ 11, "TRANSACT2_FINDNOTIFYFIRST", 0, DEFDESCRIPT },
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{ 12, "TRANSACT2_FINDNOTIFYNEXT", 0, DEFDESCRIPT },
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{ 13, "TRANSACT2_MKDIR", 0, DEFDESCRIPT },
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{ -1, NULL, 0, DEFDESCRIPT }
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};
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static void
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print_trans2(netdissect_options *ndo,
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const u_char *words, const u_char *dat, const u_char *buf, const u_char *maxbuf)
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{
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u_int bcc;
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static const struct smbfnsint *fn = &trans2_fns[0];
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const u_char *data, *param;
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const u_char *w = words + 1;
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const char *f1 = NULL, *f2 = NULL;
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u_int pcnt, dcnt;
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ND_TCHECK_1(words);
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if (request) {
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ND_TCHECK_2(w + (14 * 2));
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pcnt = GET_LE_U_2(w + 9 * 2);
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param = buf + GET_LE_U_2(w + 10 * 2);
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dcnt = GET_LE_U_2(w + 11 * 2);
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data = buf + GET_LE_U_2(w + 12 * 2);
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fn = smbfindint(GET_LE_U_2(w + 14 * 2), trans2_fns);
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} else {
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if (GET_U_1(words) == 0) {
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ND_PRINT("%s\n", fn->name);
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ND_PRINT("Trans2Interim\n");
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return;
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}
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ND_TCHECK_2(w + (7 * 2));
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pcnt = GET_LE_U_2(w + 3 * 2);
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param = buf + GET_LE_U_2(w + 4 * 2);
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dcnt = GET_LE_U_2(w + 6 * 2);
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data = buf + GET_LE_U_2(w + 7 * 2);
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}
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ND_PRINT("%s param_length=%u data_length=%u\n", fn->name, pcnt, dcnt);
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if (request) {
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if (GET_U_1(words) == 8) {
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smb_fdata(ndo, words + 1,
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"Trans2Secondary\nTotParam=[u]\nTotData=[u]\nParamCnt=[u]\nParamOff=[u]\nParamDisp=[u]\nDataCnt=[u]\nDataOff=[u]\nDataDisp=[u]\nHandle=[u]\n",
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maxbuf, unicodestr);
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return;
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} else {
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smb_fdata(ndo, words + 1,
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"TotParam=[u]\nTotData=[u]\nMaxParam=[u]\nMaxData=[u]\nMaxSetup=[b][P1]\nFlags=[w]\nTimeOut=[D]\nRes1=[w]\nParamCnt=[u]\nParamOff=[u]\nDataCnt=[u]\nDataOff=[u]\nSetupCnt=[b][P1]\n",
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words + 1 + 14 * 2, unicodestr);
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}
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f1 = fn->descript.req_f1;
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f2 = fn->descript.req_f2;
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} else {
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smb_fdata(ndo, words + 1,
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"TotParam=[u]\nTotData=[u]\nRes1=[w]\nParamCnt=[u]\nParamOff=[u]\nParamDisp[u]\nDataCnt=[u]\nDataOff=[u]\nDataDisp=[u]\nSetupCnt=[b][P1]\n",
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words + 1 + 10 * 2, unicodestr);
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f1 = fn->descript.rep_f1;
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f2 = fn->descript.rep_f2;
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}
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bcc = GET_LE_U_2(dat);
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ND_PRINT("smb_bcc=%u\n", bcc);
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if (fn->descript.fn)
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(*fn->descript.fn)(ndo, param, data, pcnt, dcnt);
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else {
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smb_fdata(ndo, param, f1 ? f1 : "Parameters=\n", param + pcnt, unicodestr);
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smb_fdata(ndo, data, f2 ? f2 : "Data=\n", data + dcnt, unicodestr);
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}
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return;
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trunc:
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nd_print_trunc(ndo);
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}
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static void
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print_browse(netdissect_options *ndo,
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const u_char *param, u_int paramlen, const u_char *data, u_int datalen)
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{
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const u_char *maxbuf = data + datalen;
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u_int command;
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command = GET_U_1(data);
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smb_fdata(ndo, param, "BROWSE PACKET\n|Param ", param+paramlen, unicodestr);
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switch (command) {
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case 0xF:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (LocalMasterAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
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maxbuf, unicodestr);
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break;
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case 0x1:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (HostAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n",
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maxbuf, unicodestr);
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break;
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case 0x2:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (AnnouncementRequest)\nFlags=[B]\nReplySystemName=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0xc:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (WorkgroupAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nCommentPointer=[W]\nServerName=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0x8:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (ElectionFrame)\nElectionVersion=[B]\nOSSummary=[W]\nUptime=[(W, W)]\nServerName=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0xb:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (BecomeBackupBrowser)\nName=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0x9:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (GetBackupList)\nListCount?=[B]\nToken=[W]\n",
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maxbuf, unicodestr);
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break;
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case 0xa:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (BackupListResponse)\nServerCount?=[B]\nToken=[W]\n*Name=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0xd:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (MasterAnnouncement)\nMasterName=[S]\n",
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maxbuf, unicodestr);
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break;
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case 0xe:
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data = smb_fdata(ndo, data,
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"BROWSE PACKET:\nType=[B] (ResetBrowser)\nOptions=[B]\n", maxbuf, unicodestr);
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break;
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default:
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data = smb_fdata(ndo, data, "Unknown Browser Frame ", maxbuf, unicodestr);
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break;
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}
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}
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static void
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print_ipc(netdissect_options *ndo,
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const u_char *param, u_int paramlen, const u_char *data, u_int datalen)
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{
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if (paramlen)
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smb_fdata(ndo, param, "Command=[w]\nStr1=[S]\nStr2=[S]\n", param + paramlen,
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unicodestr);
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if (datalen)
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smb_fdata(ndo, data, "IPC ", data + datalen, unicodestr);
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}
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static void
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print_trans(netdissect_options *ndo,
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const u_char *words, const u_char *data1, const u_char *buf, const u_char *maxbuf)
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{
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u_int bcc;
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const char *f1, *f2, *f3, *f4;
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const u_char *data, *param;
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const u_char *w = words + 1;
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u_int datalen, paramlen;
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if (request) {
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ND_TCHECK_2(w + (12 * 2));
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paramlen = GET_LE_U_2(w + 9 * 2);
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param = buf + GET_LE_U_2(w + 10 * 2);
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datalen = GET_LE_U_2(w + 11 * 2);
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data = buf + GET_LE_U_2(w + 12 * 2);
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f1 = "TotParamCnt=[u]\nTotDataCnt=[u]\nMaxParmCnt=[u]\nMaxDataCnt=[u]\nMaxSCnt=[u]\nTransFlags=[w]\nRes1=[w]\nRes2=[w]\nRes3=[w]\nParamCnt=[u]\nParamOff=[u]\nDataCnt=[u]\nDataOff=[u]\nSUCnt=[u]\n";
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f2 = "|Name=[S]\n";
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f3 = "|Param ";
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f4 = "|Data ";
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} else {
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ND_TCHECK_2(w + (7 * 2));
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paramlen = GET_LE_U_2(w + 3 * 2);
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param = buf + GET_LE_U_2(w + 4 * 2);
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datalen = GET_LE_U_2(w + 6 * 2);
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data = buf + GET_LE_U_2(w + 7 * 2);
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f1 = "TotParamCnt=[u]\nTotDataCnt=[u]\nRes1=[u]\nParamCnt=[u]\nParamOff=[u]\nRes2=[u]\nDataCnt=[u]\nDataOff=[u]\nRes3=[u]\nLsetup=[u]\n";
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f2 = "|Unknown ";
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f3 = "|Param ";
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f4 = "|Data ";
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}
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smb_fdata(ndo, words + 1, f1,
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ND_MIN(words + 1 + 2 * GET_U_1(words), maxbuf),
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unicodestr);
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bcc = GET_LE_U_2(data1);
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ND_PRINT("smb_bcc=%u\n", bcc);
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if (bcc > 0) {
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smb_fdata(ndo, data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr);
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#define MAILSLOT_BROWSE_STR "\\MAILSLOT\\BROWSE"
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ND_TCHECK_LEN(data1 + 2, strlen(MAILSLOT_BROWSE_STR) + 1);
|
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if (strcmp((const char *)(data1 + 2), MAILSLOT_BROWSE_STR) == 0) {
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print_browse(ndo, param, paramlen, data, datalen);
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return;
|
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}
|
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#undef MAILSLOT_BROWSE_STR
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|
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#define PIPE_LANMAN_STR "\\PIPE\\LANMAN"
|
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ND_TCHECK_LEN(data1 + 2, strlen(PIPE_LANMAN_STR) + 1);
|
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if (strcmp((const char *)(data1 + 2), PIPE_LANMAN_STR) == 0) {
|
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print_ipc(ndo, param, paramlen, data, datalen);
|
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return;
|
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}
|
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#undef PIPE_LANMAN_STR
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|
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if (paramlen)
|
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smb_fdata(ndo, param, f3, ND_MIN(param + paramlen, maxbuf), unicodestr);
|
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if (datalen)
|
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smb_fdata(ndo, data, f4, ND_MIN(data + datalen, maxbuf), unicodestr);
|
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}
|
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return;
|
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trunc:
|
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nd_print_trunc(ndo);
|
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}
|
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|
|
|
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static void
|
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print_negprot(netdissect_options *ndo,
|
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const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf)
|
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{
|
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u_int wct, bcc;
|
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const char *f1 = NULL, *f2 = NULL;
|
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|
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wct = GET_U_1(words);
|
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if (request)
|
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f2 = "*|Dialect=[Y]\n";
|
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else {
|
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if (wct == 1)
|
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f1 = "Core Protocol\nDialectIndex=[u]";
|
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else if (wct == 17)
|
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f1 = "NT1 Protocol\nDialectIndex=[u]\nSecMode=[B]\nMaxMux=[u]\nNumVcs=[u]\nMaxBuffer=[U]\nRawSize=[U]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[u]\nCryptKey=";
|
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else if (wct == 13)
|
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f1 = "Coreplus/Lanman1/Lanman2 Protocol\nDialectIndex=[u]\nSecMode=[w]\nMaxXMit=[u]\nMaxMux=[u]\nMaxVcs=[u]\nBlkMode=[w]\nSessionKey=[W]\nServerTime=[T1]TimeZone=[u]\nRes=[W]\nCryptKey=";
|
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}
|
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|
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if (f1)
|
|
smb_fdata(ndo, words + 1, f1, ND_MIN(words + 1 + wct * 2, maxbuf),
|
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unicodestr);
|
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else
|
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smb_data_print(ndo, words + 1, ND_MIN(wct * 2, ND_BYTES_BETWEEN(maxbuf, words + 1)));
|
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|
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bcc = GET_LE_U_2(data);
|
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ND_PRINT("smb_bcc=%u\n", bcc);
|
|
if (bcc > 0) {
|
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if (f2)
|
|
smb_fdata(ndo, data + 2, f2, ND_MIN(data + 2 + GET_LE_U_2(data),
|
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maxbuf), unicodestr);
|
|
else
|
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smb_data_print(ndo, data + 2,
|
|
ND_MIN(GET_LE_U_2(data), ND_BYTES_BETWEEN(maxbuf, data + 2)));
|
|
}
|
|
}
|
|
|
|
static void
|
|
print_sesssetup(netdissect_options *ndo,
|
|
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;
|
|
|
|
wct = GET_U_1(words);
|
|
if (request) {
|
|
if (wct == 10)
|
|
f1 = "Com2=[w]\nOff2=[u]\nBufSize=[u]\nMpxMax=[u]\nVcNum=[u]\nSessionKey=[W]\nPassLen=[u]\nCryptLen=[u]\nCryptOff=[u]\nPass&Name=\n";
|
|
else
|
|
f1 = "Com2=[B]\nRes1=[B]\nOff2=[u]\nMaxBuffer=[u]\nMaxMpx=[u]\nVcNumber=[u]\nSessionKey=[W]\nCaseInsensitivePasswordLength=[u]\nCaseSensitivePasswordLength=[u]\nRes=[W]\nCapabilities=[W]\nPass1&Pass2&Account&Domain&OS&LanMan=\n";
|
|
} else {
|
|
if (wct == 3) {
|
|
f1 = "Com2=[w]\nOff2=[u]\nAction=[w]\n";
|
|
} else if (wct == 13) {
|
|
f1 = "Com2=[B]\nRes=[B]\nOff2=[u]\nAction=[w]\n";
|
|
f2 = "NativeOS=[S]\nNativeLanMan=[S]\nPrimaryDomain=[S]\n";
|
|
}
|
|
}
|
|
|
|
if (f1)
|
|
smb_fdata(ndo, words + 1, f1, ND_MIN(words + 1 + wct * 2, maxbuf),
|
|
unicodestr);
|
|
else
|
|
smb_data_print(ndo, words + 1, ND_MIN(wct * 2, ND_BYTES_BETWEEN(maxbuf, words + 1)));
|
|
|
|
bcc = GET_LE_U_2(data);
|
|
ND_PRINT("smb_bcc=%u\n", bcc);
|
|
if (bcc > 0) {
|
|
if (f2)
|
|
smb_fdata(ndo, data + 2, f2, ND_MIN(data + 2 + GET_LE_U_2(data),
|
|
maxbuf), unicodestr);
|
|
else
|
|
smb_data_print(ndo, data + 2,
|
|
ND_MIN(GET_LE_U_2(data), ND_BYTES_BETWEEN(maxbuf, data + 2)));
|
|
}
|
|
}
|
|
|
|
static void
|
|
print_lockingandx(netdissect_options *ndo,
|
|
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;
|
|
|
|
wct = GET_U_1(words);
|
|
if (request) {
|
|
f1 = "Com2=[w]\nOff2=[u]\nHandle=[u]\nLockType=[w]\nTimeOut=[D]\nUnlockCount=[u]\nLockCount=[u]\n";
|
|
if (GET_U_1(words + 7) & 0x10)
|
|
f2 = "*Process=[u]\n[P2]Offset=[M]\nLength=[M]\n";
|
|
else
|
|
f2 = "*Process=[u]\nOffset=[D]\nLength=[U]\n";
|
|
} else {
|
|
f1 = "Com2=[w]\nOff2=[u]\n";
|
|
}
|
|
|
|
maxwords = ND_MIN(words + 1 + wct * 2, maxbuf);
|
|
if (wct)
|
|
smb_fdata(ndo, words + 1, f1, maxwords, unicodestr);
|
|
|
|
bcc = GET_LE_U_2(data);
|
|
ND_PRINT("smb_bcc=%u\n", bcc);
|
|
if (bcc > 0) {
|
|
if (f2)
|
|
smb_fdata(ndo, data + 2, f2, ND_MIN(data + 2 + GET_LE_U_2(data),
|
|
maxbuf), unicodestr);
|
|
else
|
|
smb_data_print(ndo, data + 2,
|
|
ND_MIN(GET_LE_U_2(data), ND_BYTES_BETWEEN(maxbuf, data + 2)));
|
|
}
|
|
}
|
|
|
|
|
|
static const struct smbfns smb_fns[] = {
|
|
{ -1, "SMBunknown", 0, DEFDESCRIPT },
|
|
|
|
{ SMBtcon, "SMBtcon", 0,
|
|
{ NULL, "Path=[Z]\nPassword=[Z]\nDevice=[Z]\n",
|
|
"MaxXmit=[u]\nTreeId=[u]\n", NULL,
|
|
NULL } },
|
|
|
|
{ SMBtdis, "SMBtdis", 0, DEFDESCRIPT },
|
|
{ SMBexit, "SMBexit", 0, DEFDESCRIPT },
|
|
{ SMBioctl, "SMBioctl", 0, DEFDESCRIPT },
|
|
|
|
{ SMBecho, "SMBecho", 0,
|
|
{ "ReverbCount=[u]\n", NULL,
|
|
"SequenceNum=[u]\n", NULL,
|
|
NULL } },
|
|
|
|
{ SMBulogoffX, "SMBulogoffX", FLG_CHAIN, DEFDESCRIPT },
|
|
|
|
{ SMBgetatr, "SMBgetatr", 0,
|
|
{ NULL, "Path=[Z]\n",
|
|
"Attribute=[A]\nTime=[T2]Size=[U]\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=[u]\nAttrib=[A]\n",
|
|
"Path=[Z]\nBlkType=[B]\nBlkLen=[u]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\nRes2=[W]\n",
|
|
"Count=[u]\n",
|
|
"BlkType=[B]\nBlkLen=[u]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[U]\nName=[s13]\n",
|
|
NULL } },
|
|
|
|
{ SMBopen, "SMBopen", 0,
|
|
{ "Mode=[w]\nAttribute=[A]\n", "Path=[Z]\n",
|
|
"Handle=[u]\nOAttrib=[A]\nTime=[T2]Size=[U]\nAccess=[w]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBcreate, "SMBcreate", 0,
|
|
{ "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBmknew, "SMBmknew", 0,
|
|
{ "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBunlink, "SMBunlink", 0,
|
|
{ "Attrib=[A]\n", "Path=[Z]\n", NULL, NULL, NULL } },
|
|
|
|
{ SMBread, "SMBread", 0,
|
|
{ "Handle=[u]\nByteCount=[u]\nOffset=[D]\nCountLeft=[u]\n", NULL,
|
|
"Count=[u]\nRes=([w,w,w,w])\n", NULL, NULL } },
|
|
|
|
{ SMBwrite, "SMBwrite", 0,
|
|
{ "Handle=[u]\nByteCount=[u]\nOffset=[D]\nCountLeft=[u]\n", NULL,
|
|
"Count=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBclose, "SMBclose", 0,
|
|
{ "Handle=[u]\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=[u]\nBlocksPerUnit=[u]\nBlockSize=[u]\nFreeUnits=[u]\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=[u]\nMode=[w]\nOffset=[D]\n", "Offset=[D]\n", NULL, NULL, NULL } },
|
|
|
|
{ SMBflush, "SMBflush", 0, { "Handle=[u]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBsplopen, "SMBsplopen", 0,
|
|
{ "SetupLen=[u]\nMode=[w]\n", "Ident=[Z]\n", "Handle=[u]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBsplclose, "SMBsplclose", 0,
|
|
{ "Handle=[u]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBsplretq, "SMBsplretq", 0,
|
|
{ "MaxCount=[u]\nStartIndex=[u]\n", NULL,
|
|
"Count=[u]\nIndex=[u]\n",
|
|
"*Time=[T2]Status=[B]\nJobID=[u]\nSize=[U]\nRes=[B]Name=[s16]\n",
|
|
NULL } },
|
|
|
|
{ SMBsplwr, "SMBsplwr", 0,
|
|
{ "Handle=[u]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBlock, "SMBlock", 0,
|
|
{ "Handle=[u]\nCount=[U]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBunlock, "SMBunlock", 0,
|
|
{ "Handle=[u]\nCount=[U]\nOffset=[D]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
/* CORE+ PROTOCOL FOLLOWS */
|
|
|
|
{ SMBreadbraw, "SMBreadbraw", 0,
|
|
{ "Handle=[u]\nOffset=[D]\nMaxCount=[u]\nMinCount=[u]\nTimeOut=[D]\nRes=[u]\n",
|
|
NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBwritebraw, "SMBwritebraw", 0,
|
|
{ "Handle=[u]\nTotalCount=[u]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\n|DataSize=[u]\nDataOff=[u]\n",
|
|
NULL, "WriteRawAck", NULL, NULL } },
|
|
|
|
{ SMBwritec, "SMBwritec", 0,
|
|
{ NULL, NULL, "Count=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBwriteclose, "SMBwriteclose", 0,
|
|
{ "Handle=[u]\nCount=[u]\nOffset=[D]\nTime=[T2]Res=([w,w,w,w,w,w])",
|
|
NULL, "Count=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBlockread, "SMBlockread", 0,
|
|
{ "Handle=[u]\nByteCount=[u]\nOffset=[D]\nCountLeft=[u]\n", NULL,
|
|
"Count=[u]\nRes=([w,w,w,w])\n", NULL, NULL } },
|
|
|
|
{ SMBwriteunlock, "SMBwriteunlock", 0,
|
|
{ "Handle=[u]\nByteCount=[u]\nOffset=[D]\nCountLeft=[u]\n", NULL,
|
|
"Count=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBreadBmpx, "SMBreadBmpx", 0,
|
|
{ "Handle=[u]\nOffset=[D]\nMaxCount=[u]\nMinCount=[u]\nTimeOut=[D]\nRes=[w]\n",
|
|
NULL,
|
|
"Offset=[D]\nTotCount=[u]\nRemaining=[u]\nRes=([w,w])\nDataSize=[u]\nDataOff=[u]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBwriteBmpx, "SMBwriteBmpx", 0,
|
|
{ "Handle=[u]\nTotCount=[u]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\nDataSize=[u]\nDataOff=[u]\n", NULL,
|
|
"Remaining=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBwriteBs, "SMBwriteBs", 0,
|
|
{ "Handle=[u]\nTotCount=[u]\nOffset=[D]\nRes=[W]\nDataSize=[u]\nDataOff=[u]\n",
|
|
NULL, "Count=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBsetattrE, "SMBsetattrE", 0,
|
|
{ "Handle=[u]\nCreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]", NULL,
|
|
NULL, NULL, NULL } },
|
|
|
|
{ SMBgetattrE, "SMBgetattrE", 0,
|
|
{ "Handle=[u]\n", NULL,
|
|
"CreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]Size=[U]\nAllocSize=[U]\nAttribute=[A]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBtranss, "SMBtranss", 0, DEFDESCRIPT },
|
|
{ SMBioctls, "SMBioctls", 0, DEFDESCRIPT },
|
|
|
|
{ SMBcopy, "SMBcopy", 0,
|
|
{ "TreeID2=[u]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
|
|
"CopyCount=[u]\n", "|ErrStr=[S]\n", NULL } },
|
|
|
|
{ SMBmove, "SMBmove", 0,
|
|
{ "TreeID2=[u]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n",
|
|
"MoveCount=[u]\n", "|ErrStr=[S]\n", NULL } },
|
|
|
|
{ SMBopenX, "SMBopenX", FLG_CHAIN,
|
|
{ "Com2=[w]\nOff2=[u]\nFlags=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]OFun=[w]\nSize=[U]\nTimeOut=[D]\nRes=[W]\n",
|
|
"Path=[S]\n",
|
|
"Com2=[w]\nOff2=[u]\nHandle=[u]\nAttrib=[A]\nTime=[T2]Size=[U]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nFileID=[W]\nRes=[w]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBreadX, "SMBreadX", FLG_CHAIN,
|
|
{ "Com2=[w]\nOff2=[u]\nHandle=[u]\nOffset=[D]\nMaxCount=[u]\nMinCount=[u]\nTimeOut=[D]\nCountLeft=[u]\n",
|
|
NULL,
|
|
"Com2=[w]\nOff2=[u]\nRemaining=[u]\nRes=[W]\nDataSize=[u]\nDataOff=[u]\nRes=([w,w,w,w])\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBwriteX, "SMBwriteX", FLG_CHAIN,
|
|
{ "Com2=[w]\nOff2=[u]\nHandle=[u]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nCountLeft=[u]\nRes=[w]\nDataSize=[u]\nDataOff=[u]\n",
|
|
NULL,
|
|
"Com2=[w]\nOff2=[u]\nCount=[u]\nRemaining=[u]\nRes=[W]\n",
|
|
NULL, NULL } },
|
|
|
|
{ SMBffirst, "SMBffirst", 0,
|
|
{ "Count=[u]\nAttrib=[A]\n",
|
|
"Path=[Z]\nBlkType=[B]\nBlkLen=[u]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\n",
|
|
"Count=[u]\n",
|
|
"BlkType=[B]\nBlkLen=[u]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[U]\nName=[s13]\n",
|
|
NULL } },
|
|
|
|
{ SMBfunique, "SMBfunique", 0,
|
|
{ "Count=[u]\nAttrib=[A]\n",
|
|
"Path=[Z]\nBlkType=[B]\nBlkLen=[u]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\n",
|
|
"Count=[u]\n",
|
|
"BlkType=[B]\nBlkLen=[u]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[U]\nName=[s13]\n",
|
|
NULL } },
|
|
|
|
{ SMBfclose, "SMBfclose", 0,
|
|
{ "Count=[u]\nAttrib=[A]\n",
|
|
"Path=[Z]\nBlkType=[B]\nBlkLen=[u]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\n",
|
|
"Count=[u]\n",
|
|
"BlkType=[B]\nBlkLen=[u]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[u]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[U]\nName=[s13]\n",
|
|
NULL } },
|
|
|
|
{ SMBfindnclose, "SMBfindnclose", 0,
|
|
{ "Handle=[u]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBfindclose, "SMBfindclose", 0,
|
|
{ "Handle=[u]\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=[u]\n", NULL, NULL } },
|
|
|
|
{ SMBsendend, "SMBsendend", 0,
|
|
{ "GroupID=[u]\n", NULL, NULL, NULL, NULL } },
|
|
|
|
{ SMBsendtxt, "SMBsendtxt", 0,
|
|
{ "GroupID=[u]\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=[u]\nFlags=[w]\nPassLen=[u]\nPasswd&Path&Device=\n",
|
|
NULL, "Com2=[w]\nOff2=[u]\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=[u]\nRes=[b]\nNameLen=[lu]\nFlags=[W]\nRootDirectoryFid=[U]\nAccessMask=[W]\nAllocationSize=[L]\nExtFileAttributes=[W]\nShareAccess=[W]\nCreateDisposition=[W]\nCreateOptions=[W]\nImpersonationLevel=[W]\nSecurityFlags=[b]\n",
|
|
"Path=[C]\n",
|
|
"Com2=[w]\nOff2=[u]\nOplockLevel=[b]\nFid=[u]\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(netdissect_options *ndo,
|
|
const u_char *buf, const u_char *maxbuf)
|
|
{
|
|
uint16_t flags2;
|
|
u_int nterrcodes;
|
|
u_int command;
|
|
uint32_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 = [u]\nFlags1 = [B]\nFlags2 = [B][P13]\nTree ID = [u]\nProc ID = [u]\nUID = [u]\nMID = [u]\nWord Count = [b]\n";
|
|
u_int smboffset;
|
|
|
|
ndo->ndo_protocol = "smb";
|
|
|
|
request = (GET_U_1(buf + 9) & 0x80) ? 0 : 1;
|
|
startbuf = buf;
|
|
|
|
command = GET_U_1(buf + 4);
|
|
|
|
fn = smbfind(command, smb_fns);
|
|
|
|
if (ndo->ndo_vflag > 1)
|
|
ND_PRINT("\n");
|
|
|
|
ND_PRINT("SMB PACKET: %s (%s)", fn->name, request ? "REQUEST" : "REPLY");
|
|
|
|
if (ndo->ndo_vflag < 2)
|
|
return;
|
|
|
|
ND_PRINT("\n");
|
|
flags2 = GET_LE_U_2(buf + 10);
|
|
unicodestr = flags2 & 0x8000;
|
|
nterrcodes = flags2 & 0x4000;
|
|
|
|
/* print out the header */
|
|
smb_fdata(ndo, buf, fmt_smbheader, buf + 33, unicodestr);
|
|
|
|
if (nterrcodes) {
|
|
nterror = GET_LE_U_4(buf + 5);
|
|
if (nterror)
|
|
ND_PRINT("NTError = %s\n", nt_errstr(nterror));
|
|
} else {
|
|
if (GET_U_1(buf + 5))
|
|
ND_PRINT("SMBError = %s\n", smb_errstr(GET_U_1(buf + 5),
|
|
GET_LE_U_2(buf + 7)));
|
|
}
|
|
|
|
smboffset = 32;
|
|
|
|
for (;;) {
|
|
const char *f1, *f2;
|
|
int wct;
|
|
u_int bcc;
|
|
u_int newsmboffset;
|
|
|
|
words = buf + smboffset;
|
|
wct = GET_U_1(words);
|
|
data = words + 1 + wct * 2;
|
|
maxwords = ND_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;
|
|
}
|
|
|
|
smb_reset();
|
|
if (fn->descript.fn)
|
|
(*fn->descript.fn)(ndo, words, data, buf, maxbuf);
|
|
else {
|
|
if (wct) {
|
|
if (f1)
|
|
smb_fdata(ndo, words + 1, f1, words + 1 + wct * 2, unicodestr);
|
|
else {
|
|
u_int i;
|
|
u_int v;
|
|
|
|
for (i = 0; words + 1 + 2 * i < maxwords; i++) {
|
|
v = GET_LE_U_2(words + 1 + 2 * i);
|
|
ND_PRINT("smb_vwv[%u]=%u (0x%X)\n", i, v, v);
|
|
}
|
|
}
|
|
}
|
|
|
|
bcc = GET_LE_U_2(data);
|
|
ND_PRINT("smb_bcc=%u\n", bcc);
|
|
if (f2) {
|
|
if (bcc > 0)
|
|
smb_fdata(ndo, data + 2, f2, data + 2 + bcc, unicodestr);
|
|
} else {
|
|
if (bcc > 0) {
|
|
ND_PRINT("smb_buf[]=\n");
|
|
smb_data_print(ndo, data + 2, ND_MIN(bcc, ND_BYTES_BETWEEN(maxbuf, data + 2)));
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((fn->flags & FLG_CHAIN) == 0)
|
|
break;
|
|
if (wct == 0)
|
|
break;
|
|
command = GET_U_1(words + 1);
|
|
if (command == 0xFF)
|
|
break;
|
|
newsmboffset = GET_LE_U_2(words + 3);
|
|
|
|
fn = smbfind(command, smb_fns);
|
|
|
|
ND_PRINT("\nSMB PACKET: %s (%s) (CHAINED)\n",
|
|
fn->name, request ? "REQUEST" : "REPLY");
|
|
if (newsmboffset <= smboffset) {
|
|
ND_PRINT("Bad andX offset: %u <= %u\n", newsmboffset, smboffset);
|
|
break;
|
|
}
|
|
smboffset = newsmboffset;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* print a NBT packet received across tcp on port 139
|
|
*/
|
|
void
|
|
nbt_tcp_print(netdissect_options *ndo,
|
|
const u_char *data, u_int length)
|
|
{
|
|
u_int caplen;
|
|
u_int type;
|
|
u_int nbt_len;
|
|
const u_char *maxbuf;
|
|
|
|
ndo->ndo_protocol = "nbt_tcp";
|
|
if (length < 4)
|
|
goto trunc;
|
|
if (ndo->ndo_snapend < data)
|
|
goto trunc;
|
|
caplen = ND_BYTES_AVAILABLE_AFTER(data);
|
|
if (caplen < 4)
|
|
goto trunc;
|
|
maxbuf = data + caplen;
|
|
type = GET_U_1(data);
|
|
nbt_len = GET_BE_U_2(data + 2);
|
|
length -= 4;
|
|
caplen -= 4;
|
|
|
|
startbuf = data;
|
|
|
|
if (ndo->ndo_vflag < 2) {
|
|
ND_PRINT(" NBT Session Packet: ");
|
|
switch (type) {
|
|
case 0x00:
|
|
ND_PRINT("Session Message");
|
|
break;
|
|
|
|
case 0x81:
|
|
ND_PRINT("Session Request");
|
|
break;
|
|
|
|
case 0x82:
|
|
ND_PRINT("Session Granted");
|
|
break;
|
|
|
|
case 0x83:
|
|
{
|
|
u_int ecode;
|
|
|
|
if (nbt_len < 4)
|
|
goto trunc;
|
|
if (length < 4)
|
|
goto trunc;
|
|
if (caplen < 4)
|
|
goto trunc;
|
|
ecode = GET_U_1(data + 4);
|
|
|
|
ND_PRINT("Session Reject, ");
|
|
switch (ecode) {
|
|
case 0x80:
|
|
ND_PRINT("Not listening on called name");
|
|
break;
|
|
case 0x81:
|
|
ND_PRINT("Not listening for calling name");
|
|
break;
|
|
case 0x82:
|
|
ND_PRINT("Called name not present");
|
|
break;
|
|
case 0x83:
|
|
ND_PRINT("Called name present, but insufficient resources");
|
|
break;
|
|
default:
|
|
ND_PRINT("Unspecified error 0x%X", ecode);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x85:
|
|
ND_PRINT("Session Keepalive");
|
|
break;
|
|
|
|
default:
|
|
data = smb_fdata(ndo, data, "Unknown packet type [rB]", maxbuf, 0);
|
|
break;
|
|
}
|
|
} else {
|
|
ND_PRINT("\n>>> NBT Session Packet\n");
|
|
switch (type) {
|
|
case 0x00:
|
|
data = smb_fdata(ndo, data, "[P1]NBT Session Message\nFlags=[B]\nLength=[ru]\n",
|
|
data + 4, 0);
|
|
if (data == NULL)
|
|
break;
|
|
if (nbt_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
|
|
if (nbt_len > caplen) {
|
|
if (nbt_len > length)
|
|
ND_PRINT("WARNING: Packet is continued in later TCP segments\n");
|
|
else
|
|
ND_PRINT("WARNING: Short packet. Try increasing the snap length by %u\n",
|
|
nbt_len - caplen);
|
|
}
|
|
print_smb(ndo, data, maxbuf > data + nbt_len ? data + nbt_len : maxbuf);
|
|
} else
|
|
ND_PRINT("Session packet:(raw data or continuation?)\n");
|
|
break;
|
|
|
|
case 0x81:
|
|
data = smb_fdata(ndo, data,
|
|
"[P1]NBT Session Request\nFlags=[B]\nLength=[ru]\nDestination=[n1]\nSource=[n1]\n",
|
|
maxbuf, 0);
|
|
break;
|
|
|
|
case 0x82:
|
|
data = smb_fdata(ndo, data, "[P1]NBT Session Granted\nFlags=[B]\nLength=[ru]\n", maxbuf, 0);
|
|
break;
|
|
|
|
case 0x83:
|
|
{
|
|
const u_char *origdata;
|
|
u_int ecode;
|
|
|
|
origdata = data;
|
|
data = smb_fdata(ndo, data, "[P1]NBT SessionReject\nFlags=[B]\nLength=[ru]\nReason=[B]\n",
|
|
maxbuf, 0);
|
|
if (data == NULL)
|
|
break;
|
|
if (nbt_len >= 1 && caplen >= 1) {
|
|
ecode = GET_U_1(origdata + 4);
|
|
switch (ecode) {
|
|
case 0x80:
|
|
ND_PRINT("Not listening on called name\n");
|
|
break;
|
|
case 0x81:
|
|
ND_PRINT("Not listening for calling name\n");
|
|
break;
|
|
case 0x82:
|
|
ND_PRINT("Called name not present\n");
|
|
break;
|
|
case 0x83:
|
|
ND_PRINT("Called name present, but insufficient resources\n");
|
|
break;
|
|
default:
|
|
ND_PRINT("Unspecified error 0x%X\n", ecode);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x85:
|
|
data = smb_fdata(ndo, data, "[P1]NBT Session Keepalive\nFlags=[B]\nLength=[ru]\n", maxbuf, 0);
|
|
break;
|
|
|
|
default:
|
|
data = smb_fdata(ndo, data, "NBT - Unknown packet type\nType=[B]\n", maxbuf, 0);
|
|
break;
|
|
}
|
|
}
|
|
return;
|
|
trunc:
|
|
nd_print_trunc(ndo);
|
|
}
|
|
|
|
static const struct tok opcode_str[] = {
|
|
{ 0, "QUERY" },
|
|
{ 5, "REGISTRATION" },
|
|
{ 6, "RELEASE" },
|
|
{ 7, "WACK" },
|
|
{ 8, "REFRESH(8)" },
|
|
{ 9, "REFRESH" },
|
|
{ 15, "MULTIHOMED REGISTRATION" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/*
|
|
* print a NBT packet received across udp on port 137
|
|
*/
|
|
void
|
|
nbt_udp137_print(netdissect_options *ndo,
|
|
const u_char *data, u_int length)
|
|
{
|
|
const u_char *maxbuf = data + length;
|
|
u_int name_trn_id, response, opcode, nm_flags, rcode;
|
|
u_int qdcount, ancount, nscount, arcount;
|
|
const u_char *p;
|
|
u_int total, i;
|
|
|
|
ndo->ndo_protocol = "nbt_udp137";
|
|
name_trn_id = GET_BE_U_2(data);
|
|
response = (GET_U_1(data + 2) >> 7);
|
|
opcode = (GET_U_1(data + 2) >> 3) & 0xF;
|
|
nm_flags = ((GET_U_1(data + 2) & 0x7) << 4) + (GET_U_1(data + 3) >> 4);
|
|
rcode = GET_U_1(data + 3) & 0xF;
|
|
qdcount = GET_BE_U_2(data + 4);
|
|
ancount = GET_BE_U_2(data + 6);
|
|
nscount = GET_BE_U_2(data + 8);
|
|
arcount = GET_BE_U_2(data + 10);
|
|
startbuf = data;
|
|
|
|
if (maxbuf <= data)
|
|
return;
|
|
|
|
if (ndo->ndo_vflag > 1)
|
|
ND_PRINT("\n>>> ");
|
|
|
|
ND_PRINT("NBT UDP PACKET(137): %s", tok2str(opcode_str, "OPUNKNOWN", opcode));
|
|
if (response) {
|
|
ND_PRINT("; %s", rcode ? "NEGATIVE" : "POSITIVE");
|
|
}
|
|
ND_PRINT("; %s; %s", response ? "RESPONSE" : "REQUEST",
|
|
(nm_flags & 1) ? "BROADCAST" : "UNICAST");
|
|
|
|
if (ndo->ndo_vflag < 2)
|
|
return;
|
|
|
|
ND_PRINT("\nTrnID=0x%X\nOpCode=%u\nNmFlags=0x%X\nRcode=%u\nQueryCount=%u\nAnswerCount=%u\nAuthorityCount=%u\nAddressRecCount=%u\n",
|
|
name_trn_id, opcode, nm_flags, rcode, qdcount, ancount, nscount,
|
|
arcount);
|
|
|
|
p = data + 12;
|
|
|
|
total = ancount + nscount + arcount;
|
|
|
|
if (qdcount > 100 || total > 100) {
|
|
ND_PRINT("Corrupt packet??\n");
|
|
return;
|
|
}
|
|
|
|
if (qdcount) {
|
|
ND_PRINT("QuestionRecords:\n");
|
|
for (i = 0; i < qdcount; i++) {
|
|
p = smb_fdata(ndo, p,
|
|
"|Name=[n1]\nQuestionType=[rw]\nQuestionClass=[rw]\n#",
|
|
maxbuf, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (total) {
|
|
ND_PRINT("\nResourceRecords:\n");
|
|
for (i = 0; i < total; i++) {
|
|
u_int rdlen;
|
|
u_int restype;
|
|
|
|
p = smb_fdata(ndo, p, "Name=[n1]\n#", maxbuf, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
restype = GET_BE_U_2(p);
|
|
p = smb_fdata(ndo, p, "ResType=[rw]\nResClass=[rw]\nTTL=[rU]\n", p + 8, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
rdlen = GET_BE_U_2(p);
|
|
ND_PRINT("ResourceLength=%u\nResourceData=\n", rdlen);
|
|
p += 2;
|
|
if (rdlen == 6) {
|
|
p = smb_fdata(ndo, p, "AddrType=[rw]\nAddress=[b.b.b.b]\n", p + rdlen, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
} else {
|
|
if (restype == 0x21) {
|
|
u_int numnames;
|
|
|
|
numnames = GET_U_1(p);
|
|
p = smb_fdata(ndo, p, "NumNames=[B]\n", p + 1, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
while (numnames) {
|
|
p = smb_fdata(ndo, p, "Name=[n2]\t#", maxbuf, 0);
|
|
if (p == NULL)
|
|
goto out;
|
|
ND_TCHECK_1(p);
|
|
if (p >= maxbuf)
|
|
goto out;
|
|
if (GET_U_1(p) & 0x80)
|
|
ND_PRINT("<GROUP> ");
|
|
switch (GET_U_1(p) & 0x60) {
|
|
case 0x00: ND_PRINT("B "); break;
|
|
case 0x20: ND_PRINT("P "); break;
|
|
case 0x40: ND_PRINT("M "); break;
|
|
case 0x60: ND_PRINT("_ "); break;
|
|
}
|
|
if (GET_U_1(p) & 0x10)
|
|
ND_PRINT("<DEREGISTERING> ");
|
|
if (GET_U_1(p) & 0x08)
|
|
ND_PRINT("<CONFLICT> ");
|
|
if (GET_U_1(p) & 0x04)
|
|
ND_PRINT("<ACTIVE> ");
|
|
if (GET_U_1(p) & 0x02)
|
|
ND_PRINT("<PERMANENT> ");
|
|
ND_PRINT("\n");
|
|
p += 2;
|
|
numnames--;
|
|
}
|
|
} else {
|
|
if (p >= maxbuf)
|
|
goto out;
|
|
smb_data_print(ndo, p, ND_MIN(rdlen, length - ND_BYTES_BETWEEN(p, data)));
|
|
p += rdlen;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (p < maxbuf)
|
|
smb_fdata(ndo, p, "AdditionalData:\n", maxbuf, 0);
|
|
|
|
out:
|
|
return;
|
|
trunc:
|
|
nd_print_trunc(ndo);
|
|
}
|
|
|
|
/*
|
|
* Print an SMB-over-TCP packet received across tcp on port 445
|
|
*/
|
|
void
|
|
smb_tcp_print(netdissect_options *ndo,
|
|
const u_char * data, u_int length)
|
|
{
|
|
u_int caplen;
|
|
u_int smb_len;
|
|
const u_char *maxbuf;
|
|
|
|
ndo->ndo_protocol = "smb_tcp";
|
|
if (length < 4)
|
|
goto trunc;
|
|
if (ndo->ndo_snapend < data)
|
|
goto trunc;
|
|
caplen = ND_BYTES_AVAILABLE_AFTER(data);
|
|
if (caplen < 4)
|
|
goto trunc;
|
|
maxbuf = data + caplen;
|
|
smb_len = GET_BE_U_3(data + 1);
|
|
length -= 4;
|
|
caplen -= 4;
|
|
|
|
startbuf = data;
|
|
data += 4;
|
|
|
|
if (smb_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) {
|
|
if (smb_len > caplen) {
|
|
if (smb_len > length)
|
|
ND_PRINT(" WARNING: Packet is continued in later TCP segments\n");
|
|
else
|
|
ND_PRINT(" WARNING: Short packet. Try increasing the snap length by %u\n",
|
|
smb_len - caplen);
|
|
} else
|
|
ND_PRINT(" ");
|
|
print_smb(ndo, data, maxbuf > data + smb_len ? data + smb_len : maxbuf);
|
|
} else
|
|
ND_PRINT(" SMB-over-TCP packet:(raw data or continuation?)\n");
|
|
return;
|
|
trunc:
|
|
nd_print_trunc(ndo);
|
|
}
|
|
|
|
/*
|
|
* print a NBT packet received across udp on port 138
|
|
*/
|
|
void
|
|
nbt_udp138_print(netdissect_options *ndo,
|
|
const u_char *data, u_int length)
|
|
{
|
|
const u_char *maxbuf = data + length;
|
|
|
|
ndo->ndo_protocol = "nbt_udp138";
|
|
if (maxbuf > ndo->ndo_snapend)
|
|
maxbuf = ndo->ndo_snapend;
|
|
if (maxbuf <= data)
|
|
return;
|
|
startbuf = data;
|
|
|
|
if (ndo->ndo_vflag < 2) {
|
|
ND_PRINT("NBT UDP PACKET(138)");
|
|
return;
|
|
}
|
|
|
|
data = smb_fdata(ndo, data,
|
|
"\n>>> NBT UDP PACKET(138) Res=[rw] ID=[rw] IP=[b.b.b.b] Port=[ru] Length=[ru] 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(ndo, data, maxbuf);
|
|
}
|
|
out:
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
print netbeui frames
|
|
*/
|
|
static 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(netdissect_options *ndo,
|
|
u_short control, const u_char *data, u_int length)
|
|
{
|
|
const u_char *maxbuf = data + length;
|
|
u_int len;
|
|
u_int command;
|
|
const u_char *data2;
|
|
int is_truncated = 0;
|
|
|
|
ndo->ndo_protocol = "netbeui";
|
|
if (maxbuf > ndo->ndo_snapend)
|
|
maxbuf = ndo->ndo_snapend;
|
|
len = GET_LE_U_2(data);
|
|
command = GET_U_1(data + 4);
|
|
data2 = data + len;
|
|
if (data2 >= maxbuf) {
|
|
data2 = maxbuf;
|
|
is_truncated = 1;
|
|
}
|
|
|
|
startbuf = data;
|
|
|
|
if (ndo->ndo_vflag < 2) {
|
|
ND_PRINT("NBF Packet: ");
|
|
data = smb_fdata(ndo, data, "[P5]#", maxbuf, 0);
|
|
} else {
|
|
ND_PRINT("\n>>> NBF Packet\nType=0x%X ", control);
|
|
data = smb_fdata(ndo, data, "Length=[u] Signature=[w] Command=[B]\n#", maxbuf, 0);
|
|
}
|
|
if (data == NULL)
|
|
goto out;
|
|
|
|
if (command > 0x1f || nbf_strings[command].name == NULL) {
|
|
if (ndo->ndo_vflag < 2)
|
|
data = smb_fdata(ndo, data, "Unknown NBF Command#", data2, 0);
|
|
else
|
|
data = smb_fdata(ndo, data, "Unknown NBF Command\n", data2, 0);
|
|
} else {
|
|
if (ndo->ndo_vflag < 2) {
|
|
ND_PRINT("%s", nbf_strings[command].name);
|
|
if (nbf_strings[command].nonverbose != NULL)
|
|
data = smb_fdata(ndo, data, nbf_strings[command].nonverbose, data2, 0);
|
|
} else {
|
|
ND_PRINT("%s:\n", nbf_strings[command].name);
|
|
if (nbf_strings[command].verbose != NULL)
|
|
data = smb_fdata(ndo, data, nbf_strings[command].verbose, data2, 0);
|
|
else
|
|
ND_PRINT("\n");
|
|
}
|
|
}
|
|
|
|
if (ndo->ndo_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(ndo, data2, maxbuf);
|
|
else {
|
|
u_int i;
|
|
for (i = 0; i < 128; i++) {
|
|
if ((data2 + i + 3) >= maxbuf)
|
|
break;
|
|
if (memcmp(data2 + i, "\377SMB", 4) == 0) {
|
|
ND_PRINT("found SMB packet at %u\n", i);
|
|
print_smb(ndo, data2 + i, maxbuf);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* print IPX-Netbios frames
|
|
*/
|
|
void
|
|
ipx_netbios_print(netdissect_options *ndo,
|
|
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
|
|
*/
|
|
u_int i;
|
|
const u_char *maxbuf;
|
|
|
|
ndo->ndo_protocol = "ipx_netbios";
|
|
maxbuf = data + length;
|
|
/* Don't go past the end of the captured data in the packet. */
|
|
if (maxbuf > ndo->ndo_snapend)
|
|
maxbuf = ndo->ndo_snapend;
|
|
startbuf = data;
|
|
for (i = 0; i < 128; i++) {
|
|
if ((data + i + 4) > maxbuf)
|
|
break;
|
|
if (memcmp(data + i, "\377SMB", 4) == 0) {
|
|
smb_fdata(ndo, data, "\n>>> IPX transport ", data + i, 0);
|
|
print_smb(ndo, data + i, maxbuf);
|
|
break;
|
|
}
|
|
}
|
|
if (i == 128)
|
|
smb_fdata(ndo, data, "\n>>> Unknown IPX ", maxbuf, 0);
|
|
}
|