| /* |
| * Copyright (C) Andrew Tridgell 1995-1999 |
| * |
| * This software may be distributed either under the terms of the |
| * BSD-style license that accompanies tcpdump or the GNU GPL version 2 |
| * or later |
| */ |
| |
| /* \summary: SMB/CIFS printer */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "netdissect-stdinc.h" |
| |
| #include <string.h> |
| |
| #include "netdissect.h" |
| #include "extract.h" |
| #include "smb.h" |
| |
| |
| static int request = 0; |
| static int unicodestr = 0; |
| |
| extern const u_char *startbuf; |
| |
| const u_char *startbuf = NULL; |
| |
| struct smbdescript { |
| const char *req_f1; |
| const char *req_f2; |
| const char *rep_f1; |
| const char *rep_f2; |
| void (*fn)(netdissect_options *, const u_char *, const u_char *, const u_char *, const u_char *); |
| }; |
| |
| struct smbdescriptint { |
| const char *req_f1; |
| const char *req_f2; |
| const char *rep_f1; |
| const char *rep_f2; |
| void (*fn)(netdissect_options *, const u_char *, const u_char *, u_int, u_int); |
| }; |
| |
| struct smbfns |
| { |
| int id; |
| const char *name; |
| int flags; |
| struct smbdescript descript; |
| }; |
| |
| struct smbfnsint |
| { |
| int id; |
| const char *name; |
| int flags; |
| struct smbdescriptint descript; |
| }; |
| |
| #define DEFDESCRIPT { NULL, NULL, NULL, NULL, NULL } |
| |
| #define FLG_CHAIN (1 << 0) |
| |
| static const struct smbfns * |
| smbfind(int id, const struct smbfns *list) |
| { |
| int sindex; |
| |
| for (sindex = 0; list[sindex].name; sindex++) |
| if (list[sindex].id == id) |
| return(&list[sindex]); |
| |
| return(&list[0]); |
| } |
| |
| static const struct smbfnsint * |
| smbfindint(int id, const struct smbfnsint *list) |
| { |
| int sindex; |
| |
| for (sindex = 0; list[sindex].name; sindex++) |
| if (list[sindex].id == id) |
| return(&list[sindex]); |
| |
| return(&list[0]); |
| } |
| |
| static void |
| trans2_findfirst(netdissect_options *ndo, |
| const u_char *param, const u_char *data, u_int pcnt, u_int dcnt) |
| { |
| const char *fmt; |
| |
| if (request) |
| fmt = "Attribute=[A]\nSearchCount=[u]\nFlags=[w]\nLevel=[uP4]\nFile=[S]\n"; |
| else |
| fmt = "Handle=[w]\nCount=[u]\nEOS=[w]\nEoffset=[u]\nLastNameOfs=[w]\n"; |
| |
| smb_fdata(ndo, param, fmt, param + pcnt, unicodestr); |
| if (dcnt) { |
| ND_PRINT("data:\n"); |
| smb_data_print(ndo, data, dcnt); |
| } |
| } |
| |
| static void |
| trans2_qfsinfo(netdissect_options *ndo, |
| const u_char *param, const u_char *data, u_int pcnt, u_int dcnt) |
| { |
| static u_int level = 0; |
| const char *fmt=""; |
| |
| if (request) { |
| level = GET_LE_U_2(param); |
| fmt = "InfoLevel=[u]\n"; |
| smb_fdata(ndo, param, fmt, param + pcnt, unicodestr); |
| } else { |
| switch (level) { |
| case 1: |
| fmt = "idFileSystem=[W]\nSectorUnit=[U]\nUnit=[U]\nAvail=[U]\nSectorSize=[u]\n"; |
| break; |
| case 2: |
| fmt = "CreationTime=[T2]VolNameLength=[lb]\nVolumeLabel=[c]\n"; |
| break; |
| case 0x105: |
| fmt = "Capabilities=[W]\nMaxFileLen=[U]\nVolNameLen=[lU]\nVolume=[C]\n"; |
| break; |
| default: |
| fmt = "UnknownLevel\n"; |
| break; |
| } |
| smb_fdata(ndo, data, fmt, data + dcnt, unicodestr); |
| } |
| if (dcnt) { |
| ND_PRINT("data:\n"); |
| smb_data_print(ndo, data, dcnt); |
| } |
| } |
| |
| static const struct smbfnsint trans2_fns[] = { |
| { 0, "TRANSACT2_OPEN", 0, |
| { "Flags2=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]\nOFun=[w]\nSize=[U]\nRes=([w, w, w, w, w])\nPath=[S]", |
| NULL, |
| "Handle=[u]\nAttrib=[A]\nTime=[T2]\nSize=[U]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nInode=[W]\nOffErr=[u]\n|EALength=[u]\n", |
| NULL, NULL }}, |
| { 1, "TRANSACT2_FINDFIRST", 0, |
| { NULL, NULL, NULL, NULL, trans2_findfirst }}, |
| { 2, "TRANSACT2_FINDNEXT", 0, DEFDESCRIPT }, |
| { 3, "TRANSACT2_QFSINFO", 0, |
| { NULL, NULL, NULL, NULL, trans2_qfsinfo }}, |
| { 4, "TRANSACT2_SETFSINFO", 0, DEFDESCRIPT }, |
| { 5, "TRANSACT2_QPATHINFO", 0, DEFDESCRIPT }, |
| { 6, "TRANSACT2_SETPATHINFO", 0, DEFDESCRIPT }, |
| { 7, "TRANSACT2_QFILEINFO", 0, DEFDESCRIPT }, |
| { 8, "TRANSACT2_SETFILEINFO", 0, DEFDESCRIPT }, |
| { 9, "TRANSACT2_FSCTL", 0, DEFDESCRIPT }, |
| { 10, "TRANSACT2_IOCTL", 0, DEFDESCRIPT }, |
| { 11, "TRANSACT2_FINDNOTIFYFIRST", 0, DEFDESCRIPT }, |
| { 12, "TRANSACT2_FINDNOTIFYNEXT", 0, DEFDESCRIPT }, |
| { 13, "TRANSACT2_MKDIR", 0, DEFDESCRIPT }, |
| { -1, NULL, 0, DEFDESCRIPT } |
| }; |
| |
| |
| static void |
| print_trans2(netdissect_options *ndo, |
| const u_char *words, const u_char *dat, const u_char *buf, const u_char *maxbuf) |
| { |
| u_int bcc; |
| static const struct smbfnsint *fn = &trans2_fns[0]; |
| const u_char *data, *param; |
| const u_char *w = words + 1; |
| const char *f1 = NULL, *f2 = NULL; |
| u_int pcnt, dcnt; |
| |
| ND_TCHECK_1(words); |
| if (request) { |
| ND_TCHECK_2(w + (14 * 2)); |
| pcnt = GET_LE_U_2(w + 9 * 2); |
| param = buf + GET_LE_U_2(w + 10 * 2); |
| dcnt = GET_LE_U_2(w + 11 * 2); |
| data = buf + GET_LE_U_2(w + 12 * 2); |
| fn = smbfindint(GET_LE_U_2(w + 14 * 2), trans2_fns); |
| } else { |
| if (GET_U_1(words) == 0) { |
| ND_PRINT("%s\n", fn->name); |
| ND_PRINT("Trans2Interim\n"); |
| return; |
| } |
| ND_TCHECK_2(w + (7 * 2)); |
| pcnt = GET_LE_U_2(w + 3 * 2); |
| param = buf + GET_LE_U_2(w + 4 * 2); |
| dcnt = GET_LE_U_2(w + 6 * 2); |
| data = buf + GET_LE_U_2(w + 7 * 2); |
| } |
| |
| ND_PRINT("%s param_length=%u data_length=%u\n", fn->name, pcnt, dcnt); |
| |
| if (request) { |
| if (GET_U_1(words) == 8) { |
| smb_fdata(ndo, words + 1, |
| "Trans2Secondary\nTotParam=[u]\nTotData=[u]\nParamCnt=[u]\nParamOff=[u]\nParamDisp=[u]\nDataCnt=[u]\nDataOff=[u]\nDataDisp=[u]\nHandle=[u]\n", |
| maxbuf, unicodestr); |
| return; |
| } else { |
| smb_fdata(ndo, words + 1, |
| "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", |
| words + 1 + 14 * 2, unicodestr); |
| } |
| f1 = fn->descript.req_f1; |
| f2 = fn->descript.req_f2; |
| } else { |
| smb_fdata(ndo, words + 1, |
| "TotParam=[u]\nTotData=[u]\nRes1=[w]\nParamCnt=[u]\nParamOff=[u]\nParamDisp[u]\nDataCnt=[u]\nDataOff=[u]\nDataDisp=[u]\nSetupCnt=[b][P1]\n", |
| words + 1 + 10 * 2, unicodestr); |
| f1 = fn->descript.rep_f1; |
| f2 = fn->descript.rep_f2; |
| } |
| |
| bcc = GET_LE_U_2(dat); |
| ND_PRINT("smb_bcc=%u\n", bcc); |
| if (fn->descript.fn) |
| (*fn->descript.fn)(ndo, param, data, pcnt, dcnt); |
| else { |
| smb_fdata(ndo, param, f1 ? f1 : "Parameters=\n", param + pcnt, unicodestr); |
| smb_fdata(ndo, data, f2 ? f2 : "Data=\n", data + dcnt, unicodestr); |
| } |
| return; |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| static void |
| print_browse(netdissect_options *ndo, |
| const u_char *param, u_int paramlen, const u_char *data, u_int datalen) |
| { |
| const u_char *maxbuf = data + datalen; |
| u_int command; |
| |
| command = GET_U_1(data); |
| |
| smb_fdata(ndo, param, "BROWSE PACKET\n|Param ", param+paramlen, unicodestr); |
| |
| switch (command) { |
| case 0xF: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (LocalMasterAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0x1: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (HostAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0x2: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (AnnouncementRequest)\nFlags=[B]\nReplySystemName=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0xc: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (WorkgroupAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[u]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nCommentPointer=[W]\nServerName=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0x8: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (ElectionFrame)\nElectionVersion=[B]\nOSSummary=[W]\nUptime=[(W, W)]\nServerName=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0xb: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (BecomeBackupBrowser)\nName=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0x9: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (GetBackupList)\nListCount?=[B]\nToken=[W]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0xa: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (BackupListResponse)\nServerCount?=[B]\nToken=[W]\n*Name=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0xd: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (MasterAnnouncement)\nMasterName=[S]\n", |
| maxbuf, unicodestr); |
| break; |
| |
| case 0xe: |
| data = smb_fdata(ndo, data, |
| "BROWSE PACKET:\nType=[B] (ResetBrowser)\nOptions=[B]\n", maxbuf, unicodestr); |
| break; |
| |
| default: |
| data = smb_fdata(ndo, data, "Unknown Browser Frame ", maxbuf, unicodestr); |
| break; |
| } |
| } |
| |
| |
| static void |
| print_ipc(netdissect_options *ndo, |
| const u_char *param, u_int paramlen, const u_char *data, u_int datalen) |
| { |
| if (paramlen) |
| smb_fdata(ndo, param, "Command=[w]\nStr1=[S]\nStr2=[S]\n", param + paramlen, |
| unicodestr); |
| if (datalen) |
| smb_fdata(ndo, data, "IPC ", data + datalen, unicodestr); |
| } |
| |
| |
| static void |
| print_trans(netdissect_options *ndo, |
| const u_char *words, const u_char *data1, const u_char *buf, const u_char *maxbuf) |
| { |
| u_int bcc; |
| const char *f1, *f2, *f3, *f4; |
| const u_char *data, *param; |
| const u_char *w = words + 1; |
| u_int datalen, paramlen; |
| |
| if (request) { |
| ND_TCHECK_2(w + (12 * 2)); |
| paramlen = GET_LE_U_2(w + 9 * 2); |
| param = buf + GET_LE_U_2(w + 10 * 2); |
| datalen = GET_LE_U_2(w + 11 * 2); |
| data = buf + GET_LE_U_2(w + 12 * 2); |
| 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"; |
| f2 = "|Name=[S]\n"; |
| f3 = "|Param "; |
| f4 = "|Data "; |
| } else { |
| ND_TCHECK_2(w + (7 * 2)); |
| paramlen = GET_LE_U_2(w + 3 * 2); |
| param = buf + GET_LE_U_2(w + 4 * 2); |
| datalen = GET_LE_U_2(w + 6 * 2); |
| data = buf + GET_LE_U_2(w + 7 * 2); |
| f1 = "TotParamCnt=[u]\nTotDataCnt=[u]\nRes1=[u]\nParamCnt=[u]\nParamOff=[u]\nRes2=[u]\nDataCnt=[u]\nDataOff=[u]\nRes3=[u]\nLsetup=[u]\n"; |
| f2 = "|Unknown "; |
| f3 = "|Param "; |
| f4 = "|Data "; |
| } |
| |
| smb_fdata(ndo, words + 1, f1, |
| ND_MIN(words + 1 + 2 * GET_U_1(words), maxbuf), |
| unicodestr); |
| |
| bcc = GET_LE_U_2(data1); |
| ND_PRINT("smb_bcc=%u\n", bcc); |
| if (bcc > 0) { |
| smb_fdata(ndo, data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr); |
| |
| #define MAILSLOT_BROWSE_STR "\\MAILSLOT\\BROWSE" |
| ND_TCHECK_LEN(data1 + 2, strlen(MAILSLOT_BROWSE_STR) + 1); |
| if (strcmp((const char *)(data1 + 2), MAILSLOT_BROWSE_STR) == 0) { |
| print_browse(ndo, param, paramlen, data, datalen); |
| return; |
| } |
| #undef MAILSLOT_BROWSE_STR |
| |
| #define PIPE_LANMAN_STR "\\PIPE\\LANMAN" |
| ND_TCHECK_LEN(data1 + 2, strlen(PIPE_LANMAN_STR) + 1); |
| if (strcmp((const char *)(data1 + 2), PIPE_LANMAN_STR) == 0) { |
| print_ipc(ndo, param, paramlen, data, datalen); |
| return; |
| } |
| #undef PIPE_LANMAN_STR |
| |
| if (paramlen) |
| smb_fdata(ndo, param, f3, ND_MIN(param + paramlen, maxbuf), unicodestr); |
| if (datalen) |
| smb_fdata(ndo, data, f4, ND_MIN(data + datalen, maxbuf), unicodestr); |
| } |
| return; |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| |
| static void |
| print_negprot(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) |
| f2 = "*|Dialect=[Y]\n"; |
| else { |
| if (wct == 1) |
| f1 = "Core Protocol\nDialectIndex=[u]"; |
| else if (wct == 17) |
| f1 = "NT1 Protocol\nDialectIndex=[u]\nSecMode=[B]\nMaxMux=[u]\nNumVcs=[u]\nMaxBuffer=[U]\nRawSize=[U]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[u]\nCryptKey="; |
| else if (wct == 13) |
| 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="; |
| } |
| |
| 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_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); |
| } |