1 /* 2 * Copyright (C) Andrew Tridgell 1995-1999 3 * 4 * This software may be distributed either under the terms of the 5 * BSD-style license that accompanies tcpdump or the GNU GPL version 2 6 * or later 7 */ 8 9 /* \summary: SMB/CIFS printer */ 10 11 #ifdef HAVE_CONFIG_H 12 #include "config.h" 13 #endif 14 15 #include <netdissect-stdinc.h> 16 17 #include <string.h> 18 19 #include "netdissect.h" 20 #include "extract.h" 21 #include "smb.h" 22 23 static const char tstr[] = "[|SMB]"; 24 25 static int request = 0; 26 static int unicodestr = 0; 27 28 const u_char *startbuf = NULL; 29 30 struct smbdescript { 31 const char *req_f1; 32 const char *req_f2; 33 const char *rep_f1; 34 const char *rep_f2; 35 void (*fn)(netdissect_options *, const u_char *, const u_char *, const u_char *, const u_char *); 36 }; 37 38 struct smbdescriptint { 39 const char *req_f1; 40 const char *req_f2; 41 const char *rep_f1; 42 const char *rep_f2; 43 void (*fn)(netdissect_options *, const u_char *, const u_char *, int, int); 44 }; 45 46 struct smbfns 47 { 48 int id; 49 const char *name; 50 int flags; 51 struct smbdescript descript; 52 }; 53 54 struct smbfnsint 55 { 56 int id; 57 const char *name; 58 int flags; 59 struct smbdescriptint descript; 60 }; 61 62 #define DEFDESCRIPT { NULL, NULL, NULL, NULL, NULL } 63 64 #define FLG_CHAIN (1 << 0) 65 66 static const struct smbfns * 67 smbfind(int id, const struct smbfns *list) 68 { 69 int sindex; 70 71 for (sindex = 0; list[sindex].name; sindex++) 72 if (list[sindex].id == id) 73 return(&list[sindex]); 74 75 return(&list[0]); 76 } 77 78 static const struct smbfnsint * 79 smbfindint(int id, const struct smbfnsint *list) 80 { 81 int sindex; 82 83 for (sindex = 0; list[sindex].name; sindex++) 84 if (list[sindex].id == id) 85 return(&list[sindex]); 86 87 return(&list[0]); 88 } 89 90 static void 91 trans2_findfirst(netdissect_options *ndo, 92 const u_char *param, const u_char *data, int pcnt, int dcnt) 93 { 94 const char *fmt; 95 96 if (request) 97 fmt = "Attribute=[A]\nSearchCount=[d]\nFlags=[w]\nLevel=[dP4]\nFile=[S]\n"; 98 else 99 fmt = "Handle=[w]\nCount=[d]\nEOS=[w]\nEoffset=[d]\nLastNameOfs=[w]\n"; 100 101 smb_fdata(ndo, param, fmt, param + pcnt, unicodestr); 102 if (dcnt) { 103 ND_PRINT((ndo, "data:\n")); 104 smb_print_data(ndo, data, dcnt); 105 } 106 } 107 108 static void 109 trans2_qfsinfo(netdissect_options *ndo, 110 const u_char *param, const u_char *data, int pcnt, int dcnt) 111 { 112 static int level = 0; 113 const char *fmt=""; 114 115 if (request) { 116 ND_TCHECK2(*param, 2); 117 level = EXTRACT_LE_16BITS(param); 118 fmt = "InfoLevel=[d]\n"; 119 smb_fdata(ndo, param, fmt, param + pcnt, unicodestr); 120 } else { 121 switch (level) { 122 case 1: 123 fmt = "idFileSystem=[W]\nSectorUnit=[D]\nUnit=[D]\nAvail=[D]\nSectorSize=[d]\n"; 124 break; 125 case 2: 126 fmt = "CreationTime=[T2]VolNameLength=[lb]\nVolumeLabel=[c]\n"; 127 break; 128 case 0x105: 129 fmt = "Capabilities=[W]\nMaxFileLen=[D]\nVolNameLen=[lD]\nVolume=[C]\n"; 130 break; 131 default: 132 fmt = "UnknownLevel\n"; 133 break; 134 } 135 smb_fdata(ndo, data, fmt, data + dcnt, unicodestr); 136 } 137 if (dcnt) { 138 ND_PRINT((ndo, "data:\n")); 139 smb_print_data(ndo, data, dcnt); 140 } 141 return; 142 trunc: 143 ND_PRINT((ndo, "%s", tstr)); 144 } 145 146 static const struct smbfnsint trans2_fns[] = { 147 { 0, "TRANSACT2_OPEN", 0, 148 { "Flags2=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]\nOFun=[w]\nSize=[D]\nRes=([w, w, w, w, w])\nPath=[S]", 149 NULL, 150 "Handle=[d]\nAttrib=[A]\nTime=[T2]\nSize=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nInode=[W]\nOffErr=[d]\n|EALength=[d]\n", 151 NULL, NULL }}, 152 { 1, "TRANSACT2_FINDFIRST", 0, 153 { NULL, NULL, NULL, NULL, trans2_findfirst }}, 154 { 2, "TRANSACT2_FINDNEXT", 0, DEFDESCRIPT }, 155 { 3, "TRANSACT2_QFSINFO", 0, 156 { NULL, NULL, NULL, NULL, trans2_qfsinfo }}, 157 { 4, "TRANSACT2_SETFSINFO", 0, DEFDESCRIPT }, 158 { 5, "TRANSACT2_QPATHINFO", 0, DEFDESCRIPT }, 159 { 6, "TRANSACT2_SETPATHINFO", 0, DEFDESCRIPT }, 160 { 7, "TRANSACT2_QFILEINFO", 0, DEFDESCRIPT }, 161 { 8, "TRANSACT2_SETFILEINFO", 0, DEFDESCRIPT }, 162 { 9, "TRANSACT2_FSCTL", 0, DEFDESCRIPT }, 163 { 10, "TRANSACT2_IOCTL", 0, DEFDESCRIPT }, 164 { 11, "TRANSACT2_FINDNOTIFYFIRST", 0, DEFDESCRIPT }, 165 { 12, "TRANSACT2_FINDNOTIFYNEXT", 0, DEFDESCRIPT }, 166 { 13, "TRANSACT2_MKDIR", 0, DEFDESCRIPT }, 167 { -1, NULL, 0, DEFDESCRIPT } 168 }; 169 170 171 static void 172 print_trans2(netdissect_options *ndo, 173 const u_char *words, const u_char *dat, const u_char *buf, const u_char *maxbuf) 174 { 175 u_int bcc; 176 static const struct smbfnsint *fn = &trans2_fns[0]; 177 const u_char *data, *param; 178 const u_char *w = words + 1; 179 const char *f1 = NULL, *f2 = NULL; 180 int pcnt, dcnt; 181 182 ND_TCHECK(words[0]); 183 if (request) { 184 ND_TCHECK2(w[14 * 2], 2); 185 pcnt = EXTRACT_LE_16BITS(w + 9 * 2); 186 param = buf + EXTRACT_LE_16BITS(w + 10 * 2); 187 dcnt = EXTRACT_LE_16BITS(w + 11 * 2); 188 data = buf + EXTRACT_LE_16BITS(w + 12 * 2); 189 fn = smbfindint(EXTRACT_LE_16BITS(w + 14 * 2), trans2_fns); 190 } else { 191 if (words[0] == 0) { 192 ND_PRINT((ndo, "%s\n", fn->name)); 193 ND_PRINT((ndo, "Trans2Interim\n")); 194 return; 195 } 196 ND_TCHECK2(w[7 * 2], 2); 197 pcnt = EXTRACT_LE_16BITS(w + 3 * 2); 198 param = buf + EXTRACT_LE_16BITS(w + 4 * 2); 199 dcnt = EXTRACT_LE_16BITS(w + 6 * 2); 200 data = buf + EXTRACT_LE_16BITS(w + 7 * 2); 201 } 202 203 ND_PRINT((ndo, "%s param_length=%d data_length=%d\n", fn->name, pcnt, dcnt)); 204 205 if (request) { 206 if (words[0] == 8) { 207 smb_fdata(ndo, words + 1, 208 "Trans2Secondary\nTotParam=[d]\nTotData=[d]\nParamCnt=[d]\nParamOff=[d]\nParamDisp=[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nHandle=[d]\n", 209 maxbuf, unicodestr); 210 return; 211 } else { 212 smb_fdata(ndo, words + 1, 213 "TotParam=[d]\nTotData=[d]\nMaxParam=[d]\nMaxData=[d]\nMaxSetup=[b][P1]\nFlags=[w]\nTimeOut=[D]\nRes1=[w]\nParamCnt=[d]\nParamOff=[d]\nDataCnt=[d]\nDataOff=[d]\nSetupCnt=[b][P1]\n", 214 words + 1 + 14 * 2, unicodestr); 215 } 216 f1 = fn->descript.req_f1; 217 f2 = fn->descript.req_f2; 218 } else { 219 smb_fdata(ndo, words + 1, 220 "TotParam=[d]\nTotData=[d]\nRes1=[w]\nParamCnt=[d]\nParamOff=[d]\nParamDisp[d]\nDataCnt=[d]\nDataOff=[d]\nDataDisp=[d]\nSetupCnt=[b][P1]\n", 221 words + 1 + 10 * 2, unicodestr); 222 f1 = fn->descript.rep_f1; 223 f2 = fn->descript.rep_f2; 224 } 225 226 ND_TCHECK2(*dat, 2); 227 bcc = EXTRACT_LE_16BITS(dat); 228 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 229 if (fn->descript.fn) 230 (*fn->descript.fn)(ndo, param, data, pcnt, dcnt); 231 else { 232 smb_fdata(ndo, param, f1 ? f1 : "Parameters=\n", param + pcnt, unicodestr); 233 smb_fdata(ndo, data, f2 ? f2 : "Data=\n", data + dcnt, unicodestr); 234 } 235 return; 236 trunc: 237 ND_PRINT((ndo, "%s", tstr)); 238 } 239 240 static void 241 print_browse(netdissect_options *ndo, 242 const u_char *param, int paramlen, const u_char *data, int datalen) 243 { 244 const u_char *maxbuf = data + datalen; 245 int command; 246 247 ND_TCHECK(data[0]); 248 command = data[0]; 249 250 smb_fdata(ndo, param, "BROWSE PACKET\n|Param ", param+paramlen, unicodestr); 251 252 switch (command) { 253 case 0xF: 254 data = smb_fdata(ndo, data, 255 "BROWSE PACKET:\nType=[B] (LocalMasterAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n", 256 maxbuf, unicodestr); 257 break; 258 259 case 0x1: 260 data = smb_fdata(ndo, data, 261 "BROWSE PACKET:\nType=[B] (HostAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nElectionVersion=[w]\nBrowserConstant=[w]\n", 262 maxbuf, unicodestr); 263 break; 264 265 case 0x2: 266 data = smb_fdata(ndo, data, 267 "BROWSE PACKET:\nType=[B] (AnnouncementRequest)\nFlags=[B]\nReplySystemName=[S]\n", 268 maxbuf, unicodestr); 269 break; 270 271 case 0xc: 272 data = smb_fdata(ndo, data, 273 "BROWSE PACKET:\nType=[B] (WorkgroupAnnouncement)\nUpdateCount=[w]\nRes1=[B]\nAnnounceInterval=[d]\nName=[n2]\nMajorVersion=[B]\nMinorVersion=[B]\nServerType=[W]\nCommentPointer=[W]\nServerName=[S]\n", 274 maxbuf, unicodestr); 275 break; 276 277 case 0x8: 278 data = smb_fdata(ndo, data, 279 "BROWSE PACKET:\nType=[B] (ElectionFrame)\nElectionVersion=[B]\nOSSummary=[W]\nUptime=[(W, W)]\nServerName=[S]\n", 280 maxbuf, unicodestr); 281 break; 282 283 case 0xb: 284 data = smb_fdata(ndo, data, 285 "BROWSE PACKET:\nType=[B] (BecomeBackupBrowser)\nName=[S]\n", 286 maxbuf, unicodestr); 287 break; 288 289 case 0x9: 290 data = smb_fdata(ndo, data, 291 "BROWSE PACKET:\nType=[B] (GetBackupList)\nListCount?=[B]\nToken=[W]\n", 292 maxbuf, unicodestr); 293 break; 294 295 case 0xa: 296 data = smb_fdata(ndo, data, 297 "BROWSE PACKET:\nType=[B] (BackupListResponse)\nServerCount?=[B]\nToken=[W]\n*Name=[S]\n", 298 maxbuf, unicodestr); 299 break; 300 301 case 0xd: 302 data = smb_fdata(ndo, data, 303 "BROWSE PACKET:\nType=[B] (MasterAnnouncement)\nMasterName=[S]\n", 304 maxbuf, unicodestr); 305 break; 306 307 case 0xe: 308 data = smb_fdata(ndo, data, 309 "BROWSE PACKET:\nType=[B] (ResetBrowser)\nOptions=[B]\n", maxbuf, unicodestr); 310 break; 311 312 default: 313 data = smb_fdata(ndo, data, "Unknown Browser Frame ", maxbuf, unicodestr); 314 break; 315 } 316 return; 317 trunc: 318 ND_PRINT((ndo, "%s", tstr)); 319 } 320 321 322 static void 323 print_ipc(netdissect_options *ndo, 324 const u_char *param, int paramlen, const u_char *data, int datalen) 325 { 326 if (paramlen) 327 smb_fdata(ndo, param, "Command=[w]\nStr1=[S]\nStr2=[S]\n", param + paramlen, 328 unicodestr); 329 if (datalen) 330 smb_fdata(ndo, data, "IPC ", data + datalen, unicodestr); 331 } 332 333 334 static void 335 print_trans(netdissect_options *ndo, 336 const u_char *words, const u_char *data1, const u_char *buf, const u_char *maxbuf) 337 { 338 u_int bcc; 339 const char *f1, *f2, *f3, *f4; 340 const u_char *data, *param; 341 const u_char *w = words + 1; 342 int datalen, paramlen; 343 344 if (request) { 345 ND_TCHECK2(w[12 * 2], 2); 346 paramlen = EXTRACT_LE_16BITS(w + 9 * 2); 347 param = buf + EXTRACT_LE_16BITS(w + 10 * 2); 348 datalen = EXTRACT_LE_16BITS(w + 11 * 2); 349 data = buf + EXTRACT_LE_16BITS(w + 12 * 2); 350 f1 = "TotParamCnt=[d] \nTotDataCnt=[d] \nMaxParmCnt=[d] \nMaxDataCnt=[d]\nMaxSCnt=[d] \nTransFlags=[w] \nRes1=[w] \nRes2=[w] \nRes3=[w]\nParamCnt=[d] \nParamOff=[d] \nDataCnt=[d] \nDataOff=[d] \nSUCnt=[d]\n"; 351 f2 = "|Name=[S]\n"; 352 f3 = "|Param "; 353 f4 = "|Data "; 354 } else { 355 ND_TCHECK2(w[7 * 2], 2); 356 paramlen = EXTRACT_LE_16BITS(w + 3 * 2); 357 param = buf + EXTRACT_LE_16BITS(w + 4 * 2); 358 datalen = EXTRACT_LE_16BITS(w + 6 * 2); 359 data = buf + EXTRACT_LE_16BITS(w + 7 * 2); 360 f1 = "TotParamCnt=[d] \nTotDataCnt=[d] \nRes1=[d]\nParamCnt=[d] \nParamOff=[d] \nRes2=[d] \nDataCnt=[d] \nDataOff=[d] \nRes3=[d]\nLsetup=[d]\n"; 361 f2 = "|Unknown "; 362 f3 = "|Param "; 363 f4 = "|Data "; 364 } 365 366 smb_fdata(ndo, words + 1, f1, min(words + 1 + 2 * words[0], maxbuf), 367 unicodestr); 368 369 ND_TCHECK2(*data1, 2); 370 bcc = EXTRACT_LE_16BITS(data1); 371 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 372 if (bcc > 0) { 373 smb_fdata(ndo, data1 + 2, f2, maxbuf - (paramlen + datalen), unicodestr); 374 #define MAILSLOT_BROWSE_STR "\\MAILSLOT\\BROWSE" 375 ND_TCHECK2(*(data1 + 2), strlen(MAILSLOT_BROWSE_STR) + 1); 376 if (strcmp((const char *)(data1 + 2), MAILSLOT_BROWSE_STR) == 0) { 377 print_browse(ndo, param, paramlen, data, datalen); 378 return; 379 } 380 #undef MAILSLOT_BROWSE_STR 381 382 #define PIPE_LANMAN_STR "\\PIPE\\LANMAN" 383 ND_TCHECK2(*(data1 + 2), strlen(PIPE_LANMAN_STR) + 1); 384 if (strcmp((const char *)(data1 + 2), PIPE_LANMAN_STR) == 0) { 385 print_ipc(ndo, param, paramlen, data, datalen); 386 return; 387 } 388 #undef PIPE_LANMAN_STR 389 390 if (paramlen) 391 smb_fdata(ndo, param, f3, min(param + paramlen, maxbuf), unicodestr); 392 if (datalen) 393 smb_fdata(ndo, data, f4, min(data + datalen, maxbuf), unicodestr); 394 } 395 return; 396 trunc: 397 ND_PRINT((ndo, "%s", tstr)); 398 } 399 400 401 static void 402 print_negprot(netdissect_options *ndo, 403 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 404 { 405 u_int wct, bcc; 406 const char *f1 = NULL, *f2 = NULL; 407 408 ND_TCHECK(words[0]); 409 wct = words[0]; 410 if (request) 411 f2 = "*|Dialect=[Y]\n"; 412 else { 413 if (wct == 1) 414 f1 = "Core Protocol\nDialectIndex=[d]"; 415 else if (wct == 17) 416 f1 = "NT1 Protocol\nDialectIndex=[d]\nSecMode=[B]\nMaxMux=[d]\nNumVcs=[d]\nMaxBuffer=[D]\nRawSize=[D]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[d]\nCryptKey="; 417 else if (wct == 13) 418 f1 = "Coreplus/Lanman1/Lanman2 Protocol\nDialectIndex=[d]\nSecMode=[w]\nMaxXMit=[d]\nMaxMux=[d]\nMaxVcs=[d]\nBlkMode=[w]\nSessionKey=[W]\nServerTime=[T1]TimeZone=[d]\nRes=[W]\nCryptKey="; 419 } 420 421 if (f1) 422 smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf), 423 unicodestr); 424 else 425 smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1))); 426 427 ND_TCHECK2(*data, 2); 428 bcc = EXTRACT_LE_16BITS(data); 429 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 430 if (bcc > 0) { 431 if (f2) 432 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 433 maxbuf), unicodestr); 434 else 435 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 436 } 437 return; 438 trunc: 439 ND_PRINT((ndo, "%s", tstr)); 440 } 441 442 static void 443 print_sesssetup(netdissect_options *ndo, 444 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 445 { 446 u_int wct, bcc; 447 const char *f1 = NULL, *f2 = NULL; 448 449 ND_TCHECK(words[0]); 450 wct = words[0]; 451 if (request) { 452 if (wct == 10) 453 f1 = "Com2=[w]\nOff2=[d]\nBufSize=[d]\nMpxMax=[d]\nVcNum=[d]\nSessionKey=[W]\nPassLen=[d]\nCryptLen=[d]\nCryptOff=[d]\nPass&Name=\n"; 454 else 455 f1 = "Com2=[B]\nRes1=[B]\nOff2=[d]\nMaxBuffer=[d]\nMaxMpx=[d]\nVcNumber=[d]\nSessionKey=[W]\nCaseInsensitivePasswordLength=[d]\nCaseSensitivePasswordLength=[d]\nRes=[W]\nCapabilities=[W]\nPass1&Pass2&Account&Domain&OS&LanMan=\n"; 456 } else { 457 if (wct == 3) { 458 f1 = "Com2=[w]\nOff2=[d]\nAction=[w]\n"; 459 } else if (wct == 13) { 460 f1 = "Com2=[B]\nRes=[B]\nOff2=[d]\nAction=[w]\n"; 461 f2 = "NativeOS=[S]\nNativeLanMan=[S]\nPrimaryDomain=[S]\n"; 462 } 463 } 464 465 if (f1) 466 smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf), 467 unicodestr); 468 else 469 smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1))); 470 471 ND_TCHECK2(*data, 2); 472 bcc = EXTRACT_LE_16BITS(data); 473 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 474 if (bcc > 0) { 475 if (f2) 476 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 477 maxbuf), unicodestr); 478 else 479 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 480 } 481 return; 482 trunc: 483 ND_PRINT((ndo, "%s", tstr)); 484 } 485 486 static void 487 print_lockingandx(netdissect_options *ndo, 488 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 489 { 490 u_int wct, bcc; 491 const u_char *maxwords; 492 const char *f1 = NULL, *f2 = NULL; 493 494 ND_TCHECK(words[0]); 495 wct = words[0]; 496 if (request) { 497 f1 = "Com2=[w]\nOff2=[d]\nHandle=[d]\nLockType=[w]\nTimeOut=[D]\nUnlockCount=[d]\nLockCount=[d]\n"; 498 ND_TCHECK(words[7]); 499 if (words[7] & 0x10) 500 f2 = "*Process=[d]\n[P2]Offset=[M]\nLength=[M]\n"; 501 else 502 f2 = "*Process=[d]\nOffset=[D]\nLength=[D]\n"; 503 } else { 504 f1 = "Com2=[w]\nOff2=[d]\n"; 505 } 506 507 maxwords = min(words + 1 + wct * 2, maxbuf); 508 if (wct) 509 smb_fdata(ndo, words + 1, f1, maxwords, unicodestr); 510 511 ND_TCHECK2(*data, 2); 512 bcc = EXTRACT_LE_16BITS(data); 513 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 514 if (bcc > 0) { 515 if (f2) 516 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 517 maxbuf), unicodestr); 518 else 519 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 520 } 521 return; 522 trunc: 523 ND_PRINT((ndo, "%s", tstr)); 524 } 525 526 527 static const struct smbfns smb_fns[] = { 528 { -1, "SMBunknown", 0, DEFDESCRIPT }, 529 530 { SMBtcon, "SMBtcon", 0, 531 { NULL, "Path=[Z]\nPassword=[Z]\nDevice=[Z]\n", 532 "MaxXmit=[d]\nTreeId=[d]\n", NULL, 533 NULL } }, 534 535 { SMBtdis, "SMBtdis", 0, DEFDESCRIPT }, 536 { SMBexit, "SMBexit", 0, DEFDESCRIPT }, 537 { SMBioctl, "SMBioctl", 0, DEFDESCRIPT }, 538 539 { SMBecho, "SMBecho", 0, 540 { "ReverbCount=[d]\n", NULL, 541 "SequenceNum=[d]\n", NULL, 542 NULL } }, 543 544 { SMBulogoffX, "SMBulogoffX", FLG_CHAIN, DEFDESCRIPT }, 545 546 { SMBgetatr, "SMBgetatr", 0, 547 { NULL, "Path=[Z]\n", 548 "Attribute=[A]\nTime=[T2]Size=[D]\nRes=([w,w,w,w,w])\n", NULL, 549 NULL } }, 550 551 { SMBsetatr, "SMBsetatr", 0, 552 { "Attribute=[A]\nTime=[T2]Res=([w,w,w,w,w])\n", "Path=[Z]\n", 553 NULL, NULL, NULL } }, 554 555 { SMBchkpth, "SMBchkpth", 0, 556 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 557 558 { SMBsearch, "SMBsearch", 0, 559 { "Count=[d]\nAttrib=[A]\n", 560 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\n", 561 "Count=[d]\n", 562 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 563 NULL } }, 564 565 { SMBopen, "SMBopen", 0, 566 { "Mode=[w]\nAttribute=[A]\n", "Path=[Z]\n", 567 "Handle=[d]\nOAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\n", 568 NULL, NULL } }, 569 570 { SMBcreate, "SMBcreate", 0, 571 { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } }, 572 573 { SMBmknew, "SMBmknew", 0, 574 { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } }, 575 576 { SMBunlink, "SMBunlink", 0, 577 { "Attrib=[A]\n", "Path=[Z]\n", NULL, NULL, NULL } }, 578 579 { SMBread, "SMBread", 0, 580 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 581 "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } }, 582 583 { SMBwrite, "SMBwrite", 0, 584 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 585 "Count=[d]\n", NULL, NULL } }, 586 587 { SMBclose, "SMBclose", 0, 588 { "Handle=[d]\nTime=[T2]", NULL, NULL, NULL, NULL } }, 589 590 { SMBmkdir, "SMBmkdir", 0, 591 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 592 593 { SMBrmdir, "SMBrmdir", 0, 594 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 595 596 { SMBdskattr, "SMBdskattr", 0, 597 { NULL, NULL, 598 "TotalUnits=[d]\nBlocksPerUnit=[d]\nBlockSize=[d]\nFreeUnits=[d]\nMedia=[w]\n", 599 NULL, NULL } }, 600 601 { SMBmv, "SMBmv", 0, 602 { "Attrib=[A]\n", "OldPath=[Z]\nNewPath=[Z]\n", NULL, NULL, NULL } }, 603 604 /* 605 * this is a Pathworks specific call, allowing the 606 * changing of the root path 607 */ 608 { pSETDIR, "SMBsetdir", 0, { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 609 610 { SMBlseek, "SMBlseek", 0, 611 { "Handle=[d]\nMode=[w]\nOffset=[D]\n", "Offset=[D]\n", NULL, NULL, NULL } }, 612 613 { SMBflush, "SMBflush", 0, { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 614 615 { SMBsplopen, "SMBsplopen", 0, 616 { "SetupLen=[d]\nMode=[w]\n", "Ident=[Z]\n", "Handle=[d]\n", 617 NULL, NULL } }, 618 619 { SMBsplclose, "SMBsplclose", 0, 620 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 621 622 { SMBsplretq, "SMBsplretq", 0, 623 { "MaxCount=[d]\nStartIndex=[d]\n", NULL, 624 "Count=[d]\nIndex=[d]\n", 625 "*Time=[T2]Status=[B]\nJobID=[d]\nSize=[D]\nRes=[B]Name=[s16]\n", 626 NULL } }, 627 628 { SMBsplwr, "SMBsplwr", 0, 629 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 630 631 { SMBlock, "SMBlock", 0, 632 { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } }, 633 634 { SMBunlock, "SMBunlock", 0, 635 { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } }, 636 637 /* CORE+ PROTOCOL FOLLOWS */ 638 639 { SMBreadbraw, "SMBreadbraw", 0, 640 { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[d]\n", 641 NULL, NULL, NULL, NULL } }, 642 643 { SMBwritebraw, "SMBwritebraw", 0, 644 { "Handle=[d]\nTotalCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\n|DataSize=[d]\nDataOff=[d]\n", 645 NULL, "WriteRawAck", NULL, NULL } }, 646 647 { SMBwritec, "SMBwritec", 0, 648 { NULL, NULL, "Count=[d]\n", NULL, NULL } }, 649 650 { SMBwriteclose, "SMBwriteclose", 0, 651 { "Handle=[d]\nCount=[d]\nOffset=[D]\nTime=[T2]Res=([w,w,w,w,w,w])", 652 NULL, "Count=[d]\n", NULL, NULL } }, 653 654 { SMBlockread, "SMBlockread", 0, 655 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 656 "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } }, 657 658 { SMBwriteunlock, "SMBwriteunlock", 0, 659 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 660 "Count=[d]\n", NULL, NULL } }, 661 662 { SMBreadBmpx, "SMBreadBmpx", 0, 663 { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[w]\n", 664 NULL, 665 "Offset=[D]\nTotCount=[d]\nRemaining=[d]\nRes=([w,w])\nDataSize=[d]\nDataOff=[d]\n", 666 NULL, NULL } }, 667 668 { SMBwriteBmpx, "SMBwriteBmpx", 0, 669 { "Handle=[d]\nTotCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\nDataSize=[d]\nDataOff=[d]\n", NULL, 670 "Remaining=[d]\n", NULL, NULL } }, 671 672 { SMBwriteBs, "SMBwriteBs", 0, 673 { "Handle=[d]\nTotCount=[d]\nOffset=[D]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\n", 674 NULL, "Count=[d]\n", NULL, NULL } }, 675 676 { SMBsetattrE, "SMBsetattrE", 0, 677 { "Handle=[d]\nCreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]", NULL, 678 NULL, NULL, NULL } }, 679 680 { SMBgetattrE, "SMBgetattrE", 0, 681 { "Handle=[d]\n", NULL, 682 "CreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]Size=[D]\nAllocSize=[D]\nAttribute=[A]\n", 683 NULL, NULL } }, 684 685 { SMBtranss, "SMBtranss", 0, DEFDESCRIPT }, 686 { SMBioctls, "SMBioctls", 0, DEFDESCRIPT }, 687 688 { SMBcopy, "SMBcopy", 0, 689 { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n", 690 "CopyCount=[d]\n", "|ErrStr=[S]\n", NULL } }, 691 692 { SMBmove, "SMBmove", 0, 693 { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n", 694 "MoveCount=[d]\n", "|ErrStr=[S]\n", NULL } }, 695 696 { SMBopenX, "SMBopenX", FLG_CHAIN, 697 { "Com2=[w]\nOff2=[d]\nFlags=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]OFun=[w]\nSize=[D]\nTimeOut=[D]\nRes=[W]\n", 698 "Path=[S]\n", 699 "Com2=[w]\nOff2=[d]\nHandle=[d]\nAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nFileID=[W]\nRes=[w]\n", 700 NULL, NULL } }, 701 702 { SMBreadX, "SMBreadX", FLG_CHAIN, 703 { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nCountLeft=[d]\n", 704 NULL, 705 "Com2=[w]\nOff2=[d]\nRemaining=[d]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\nRes=([w,w,w,w])\n", 706 NULL, NULL } }, 707 708 { SMBwriteX, "SMBwriteX", FLG_CHAIN, 709 { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nCountLeft=[d]\nRes=[w]\nDataSize=[d]\nDataOff=[d]\n", 710 NULL, 711 "Com2=[w]\nOff2=[d]\nCount=[d]\nRemaining=[d]\nRes=[W]\n", 712 NULL, NULL } }, 713 714 { SMBffirst, "SMBffirst", 0, 715 { "Count=[d]\nAttrib=[A]\n", 716 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 717 "Count=[d]\n", 718 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 719 NULL } }, 720 721 { SMBfunique, "SMBfunique", 0, 722 { "Count=[d]\nAttrib=[A]\n", 723 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 724 "Count=[d]\n", 725 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 726 NULL } }, 727 728 { SMBfclose, "SMBfclose", 0, 729 { "Count=[d]\nAttrib=[A]\n", 730 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 731 "Count=[d]\n", 732 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 733 NULL } }, 734 735 { SMBfindnclose, "SMBfindnclose", 0, 736 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 737 738 { SMBfindclose, "SMBfindclose", 0, 739 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 740 741 { SMBsends, "SMBsends", 0, 742 { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } }, 743 744 { SMBsendstrt, "SMBsendstrt", 0, 745 { NULL, "Source=[Z]\nDest=[Z]\n", "GroupID=[d]\n", NULL, NULL } }, 746 747 { SMBsendend, "SMBsendend", 0, 748 { "GroupID=[d]\n", NULL, NULL, NULL, NULL } }, 749 750 { SMBsendtxt, "SMBsendtxt", 0, 751 { "GroupID=[d]\n", NULL, NULL, NULL, NULL } }, 752 753 { SMBsendb, "SMBsendb", 0, 754 { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } }, 755 756 { SMBfwdname, "SMBfwdname", 0, DEFDESCRIPT }, 757 { SMBcancelf, "SMBcancelf", 0, DEFDESCRIPT }, 758 { SMBgetmac, "SMBgetmac", 0, DEFDESCRIPT }, 759 760 { SMBnegprot, "SMBnegprot", 0, 761 { NULL, NULL, NULL, NULL, print_negprot } }, 762 763 { SMBsesssetupX, "SMBsesssetupX", FLG_CHAIN, 764 { NULL, NULL, NULL, NULL, print_sesssetup } }, 765 766 { SMBtconX, "SMBtconX", FLG_CHAIN, 767 { "Com2=[w]\nOff2=[d]\nFlags=[w]\nPassLen=[d]\nPasswd&Path&Device=\n", 768 NULL, "Com2=[w]\nOff2=[d]\n", "ServiceType=[R]\n", NULL } }, 769 770 { SMBlockingX, "SMBlockingX", FLG_CHAIN, 771 { NULL, NULL, NULL, NULL, print_lockingandx } }, 772 773 { SMBtrans2, "SMBtrans2", 0, { NULL, NULL, NULL, NULL, print_trans2 } }, 774 775 { SMBtranss2, "SMBtranss2", 0, DEFDESCRIPT }, 776 { SMBctemp, "SMBctemp", 0, DEFDESCRIPT }, 777 { SMBreadBs, "SMBreadBs", 0, DEFDESCRIPT }, 778 { SMBtrans, "SMBtrans", 0, { NULL, NULL, NULL, NULL, print_trans } }, 779 780 { SMBnttrans, "SMBnttrans", 0, DEFDESCRIPT }, 781 { SMBnttranss, "SMBnttranss", 0, DEFDESCRIPT }, 782 783 { SMBntcreateX, "SMBntcreateX", FLG_CHAIN, 784 { "Com2=[w]\nOff2=[d]\nRes=[b]\nNameLen=[ld]\nFlags=[W]\nRootDirectoryFid=[D]\nAccessMask=[W]\nAllocationSize=[L]\nExtFileAttributes=[W]\nShareAccess=[W]\nCreateDisposition=[W]\nCreateOptions=[W]\nImpersonationLevel=[W]\nSecurityFlags=[b]\n", 785 "Path=[C]\n", 786 "Com2=[w]\nOff2=[d]\nOplockLevel=[b]\nFid=[d]\nCreateAction=[W]\nCreateTime=[T3]LastAccessTime=[T3]LastWriteTime=[T3]ChangeTime=[T3]ExtFileAttributes=[W]\nAllocationSize=[L]\nEndOfFile=[L]\nFileType=[w]\nDeviceState=[w]\nDirectory=[b]\n", 787 NULL, NULL } }, 788 789 { SMBntcancel, "SMBntcancel", 0, DEFDESCRIPT }, 790 791 { -1, NULL, 0, DEFDESCRIPT } 792 }; 793 794 795 /* 796 * print a SMB message 797 */ 798 static void 799 print_smb(netdissect_options *ndo, 800 const u_char *buf, const u_char *maxbuf) 801 { 802 uint16_t flags2; 803 int nterrcodes; 804 int command; 805 uint32_t nterror; 806 const u_char *words, *maxwords, *data; 807 const struct smbfns *fn; 808 const char *fmt_smbheader = 809 "[P4]SMB Command = [B]\nError class = [BP1]\nError code = [d]\nFlags1 = [B]\nFlags2 = [B][P13]\nTree ID = [d]\nProc ID = [d]\nUID = [d]\nMID = [d]\nWord Count = [b]\n"; 810 int smboffset; 811 812 ND_TCHECK(buf[9]); 813 request = (buf[9] & 0x80) ? 0 : 1; 814 startbuf = buf; 815 816 command = buf[4]; 817 818 fn = smbfind(command, smb_fns); 819 820 if (ndo->ndo_vflag > 1) 821 ND_PRINT((ndo, "\n")); 822 823 ND_PRINT((ndo, "SMB PACKET: %s (%s)\n", fn->name, request ? "REQUEST" : "REPLY")); 824 825 if (ndo->ndo_vflag < 2) 826 return; 827 828 ND_TCHECK_16BITS(&buf[10]); 829 flags2 = EXTRACT_LE_16BITS(&buf[10]); 830 unicodestr = flags2 & 0x8000; 831 nterrcodes = flags2 & 0x4000; 832 833 /* print out the header */ 834 smb_fdata(ndo, buf, fmt_smbheader, buf + 33, unicodestr); 835 836 if (nterrcodes) { 837 nterror = EXTRACT_LE_32BITS(&buf[5]); 838 if (nterror) 839 ND_PRINT((ndo, "NTError = %s\n", nt_errstr(nterror))); 840 } else { 841 if (buf[5]) 842 ND_PRINT((ndo, "SMBError = %s\n", smb_errstr(buf[5], EXTRACT_LE_16BITS(&buf[7])))); 843 } 844 845 smboffset = 32; 846 847 for (;;) { 848 const char *f1, *f2; 849 int wct; 850 u_int bcc; 851 int newsmboffset; 852 853 words = buf + smboffset; 854 ND_TCHECK(words[0]); 855 wct = words[0]; 856 data = words + 1 + wct * 2; 857 maxwords = min(data, maxbuf); 858 859 if (request) { 860 f1 = fn->descript.req_f1; 861 f2 = fn->descript.req_f2; 862 } else { 863 f1 = fn->descript.rep_f1; 864 f2 = fn->descript.rep_f2; 865 } 866 867 if (fn->descript.fn) 868 (*fn->descript.fn)(ndo, words, data, buf, maxbuf); 869 else { 870 if (wct) { 871 if (f1) 872 smb_fdata(ndo, words + 1, f1, words + 1 + wct * 2, unicodestr); 873 else { 874 int i; 875 int v; 876 877 for (i = 0; &words[1 + 2 * i] < maxwords; i++) { 878 ND_TCHECK2(words[1 + 2 * i], 2); 879 v = EXTRACT_LE_16BITS(words + 1 + 2 * i); 880 ND_PRINT((ndo, "smb_vwv[%d]=%d (0x%X)\n", i, v, v)); 881 } 882 } 883 } 884 885 ND_TCHECK2(*data, 2); 886 bcc = EXTRACT_LE_16BITS(data); 887 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 888 if (f2) { 889 if (bcc > 0) 890 smb_fdata(ndo, data + 2, f2, data + 2 + bcc, unicodestr); 891 } else { 892 if (bcc > 0) { 893 ND_PRINT((ndo, "smb_buf[]=\n")); 894 smb_print_data(ndo, data + 2, min(bcc, PTR_DIFF(maxbuf, data + 2))); 895 } 896 } 897 } 898 899 if ((fn->flags & FLG_CHAIN) == 0) 900 break; 901 if (wct == 0) 902 break; 903 ND_TCHECK(words[1]); 904 command = words[1]; 905 if (command == 0xFF) 906 break; 907 ND_TCHECK2(words[3], 2); 908 newsmboffset = EXTRACT_LE_16BITS(words + 3); 909 910 fn = smbfind(command, smb_fns); 911 912 ND_PRINT((ndo, "\nSMB PACKET: %s (%s) (CHAINED)\n", 913 fn->name, request ? "REQUEST" : "REPLY")); 914 if (newsmboffset <= smboffset) { 915 ND_PRINT((ndo, "Bad andX offset: %u <= %u\n", newsmboffset, smboffset)); 916 break; 917 } 918 smboffset = newsmboffset; 919 } 920 921 ND_PRINT((ndo, "\n")); 922 return; 923 trunc: 924 ND_PRINT((ndo, "%s", tstr)); 925 } 926 927 928 /* 929 * print a NBT packet received across tcp on port 139 930 */ 931 void 932 nbt_tcp_print(netdissect_options *ndo, 933 const u_char *data, int length) 934 { 935 int caplen; 936 int type; 937 u_int nbt_len; 938 const u_char *maxbuf; 939 940 if (length < 4) 941 goto trunc; 942 if (ndo->ndo_snapend < data) 943 goto trunc; 944 caplen = ndo->ndo_snapend - data; 945 if (caplen < 4) 946 goto trunc; 947 maxbuf = data + caplen; 948 ND_TCHECK_8BITS(data); 949 type = data[0]; 950 ND_TCHECK_16BITS(data + 2); 951 nbt_len = EXTRACT_16BITS(data + 2); 952 length -= 4; 953 caplen -= 4; 954 955 startbuf = data; 956 957 if (ndo->ndo_vflag < 2) { 958 ND_PRINT((ndo, " NBT Session Packet: ")); 959 switch (type) { 960 case 0x00: 961 ND_PRINT((ndo, "Session Message")); 962 break; 963 964 case 0x81: 965 ND_PRINT((ndo, "Session Request")); 966 break; 967 968 case 0x82: 969 ND_PRINT((ndo, "Session Granted")); 970 break; 971 972 case 0x83: 973 { 974 int ecode; 975 976 if (nbt_len < 4) 977 goto trunc; 978 if (length < 4) 979 goto trunc; 980 if (caplen < 4) 981 goto trunc; 982 ecode = data[4]; 983 984 ND_PRINT((ndo, "Session Reject, ")); 985 switch (ecode) { 986 case 0x80: 987 ND_PRINT((ndo, "Not listening on called name")); 988 break; 989 case 0x81: 990 ND_PRINT((ndo, "Not listening for calling name")); 991 break; 992 case 0x82: 993 ND_PRINT((ndo, "Called name not present")); 994 break; 995 case 0x83: 996 ND_PRINT((ndo, "Called name present, but insufficient resources")); 997 break; 998 default: 999 ND_PRINT((ndo, "Unspecified error 0x%X", ecode)); 1000 break; 1001 } 1002 } 1003 break; 1004 1005 case 0x85: 1006 ND_PRINT((ndo, "Session Keepalive")); 1007 break; 1008 1009 default: 1010 data = smb_fdata(ndo, data, "Unknown packet type [rB]", maxbuf, 0); 1011 break; 1012 } 1013 } else { 1014 ND_PRINT((ndo, "\n>>> NBT Session Packet\n")); 1015 switch (type) { 1016 case 0x00: 1017 data = smb_fdata(ndo, data, "[P1]NBT Session Message\nFlags=[B]\nLength=[rd]\n", 1018 data + 4, 0); 1019 if (data == NULL) 1020 break; 1021 if (nbt_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) { 1022 if ((int)nbt_len > caplen) { 1023 if ((int)nbt_len > length) 1024 ND_PRINT((ndo, "WARNING: Packet is continued in later TCP segments\n")); 1025 else 1026 ND_PRINT((ndo, "WARNING: Short packet. Try increasing the snap length by %d\n", 1027 nbt_len - caplen)); 1028 } 1029 print_smb(ndo, data, maxbuf > data + nbt_len ? data + nbt_len : maxbuf); 1030 } else 1031 ND_PRINT((ndo, "Session packet:(raw data or continuation?)\n")); 1032 break; 1033 1034 case 0x81: 1035 data = smb_fdata(ndo, data, 1036 "[P1]NBT Session Request\nFlags=[B]\nLength=[rd]\nDestination=[n1]\nSource=[n1]\n", 1037 maxbuf, 0); 1038 break; 1039 1040 case 0x82: 1041 data = smb_fdata(ndo, data, "[P1]NBT Session Granted\nFlags=[B]\nLength=[rd]\n", maxbuf, 0); 1042 break; 1043 1044 case 0x83: 1045 { 1046 const u_char *origdata; 1047 int ecode; 1048 1049 origdata = data; 1050 data = smb_fdata(ndo, data, "[P1]NBT SessionReject\nFlags=[B]\nLength=[rd]\nReason=[B]\n", 1051 maxbuf, 0); 1052 if (data == NULL) 1053 break; 1054 if (nbt_len >= 1 && caplen >= 1) { 1055 ecode = origdata[4]; 1056 switch (ecode) { 1057 case 0x80: 1058 ND_PRINT((ndo, "Not listening on called name\n")); 1059 break; 1060 case 0x81: 1061 ND_PRINT((ndo, "Not listening for calling name\n")); 1062 break; 1063 case 0x82: 1064 ND_PRINT((ndo, "Called name not present\n")); 1065 break; 1066 case 0x83: 1067 ND_PRINT((ndo, "Called name present, but insufficient resources\n")); 1068 break; 1069 default: 1070 ND_PRINT((ndo, "Unspecified error 0x%X\n", ecode)); 1071 break; 1072 } 1073 } 1074 } 1075 break; 1076 1077 case 0x85: 1078 data = smb_fdata(ndo, data, "[P1]NBT Session Keepalive\nFlags=[B]\nLength=[rd]\n", maxbuf, 0); 1079 break; 1080 1081 default: 1082 data = smb_fdata(ndo, data, "NBT - Unknown packet type\nType=[B]\n", maxbuf, 0); 1083 break; 1084 } 1085 ND_PRINT((ndo, "\n")); 1086 } 1087 return; 1088 trunc: 1089 ND_PRINT((ndo, "%s", tstr)); 1090 } 1091 1092 static const struct tok opcode_str[] = { 1093 { 0, "QUERY" }, 1094 { 5, "REGISTRATION" }, 1095 { 6, "RELEASE" }, 1096 { 7, "WACK" }, 1097 { 8, "REFRESH(8)" }, 1098 { 9, "REFRESH" }, 1099 { 15, "MULTIHOMED REGISTRATION" }, 1100 { 0, NULL } 1101 }; 1102 1103 /* 1104 * print a NBT packet received across udp on port 137 1105 */ 1106 void 1107 nbt_udp137_print(netdissect_options *ndo, 1108 const u_char *data, int length) 1109 { 1110 const u_char *maxbuf = data + length; 1111 int name_trn_id, response, opcode, nm_flags, rcode; 1112 int qdcount, ancount, nscount, arcount; 1113 const u_char *p; 1114 int total, i; 1115 1116 ND_TCHECK2(data[10], 2); 1117 name_trn_id = EXTRACT_16BITS(data); 1118 response = (data[2] >> 7); 1119 opcode = (data[2] >> 3) & 0xF; 1120 nm_flags = ((data[2] & 0x7) << 4) + (data[3] >> 4); 1121 rcode = data[3] & 0xF; 1122 qdcount = EXTRACT_16BITS(data + 4); 1123 ancount = EXTRACT_16BITS(data + 6); 1124 nscount = EXTRACT_16BITS(data + 8); 1125 arcount = EXTRACT_16BITS(data + 10); 1126 startbuf = data; 1127 1128 if (maxbuf <= data) 1129 return; 1130 1131 if (ndo->ndo_vflag > 1) 1132 ND_PRINT((ndo, "\n>>> ")); 1133 1134 ND_PRINT((ndo, "NBT UDP PACKET(137): %s", tok2str(opcode_str, "OPUNKNOWN", opcode))); 1135 if (response) { 1136 ND_PRINT((ndo, "; %s", rcode ? "NEGATIVE" : "POSITIVE")); 1137 } 1138 ND_PRINT((ndo, "; %s; %s", response ? "RESPONSE" : "REQUEST", 1139 (nm_flags & 1) ? "BROADCAST" : "UNICAST")); 1140 1141 if (ndo->ndo_vflag < 2) 1142 return; 1143 1144 ND_PRINT((ndo, "\nTrnID=0x%X\nOpCode=%d\nNmFlags=0x%X\nRcode=%d\nQueryCount=%d\nAnswerCount=%d\nAuthorityCount=%d\nAddressRecCount=%d\n", 1145 name_trn_id, opcode, nm_flags, rcode, qdcount, ancount, nscount, 1146 arcount)); 1147 1148 p = data + 12; 1149 1150 total = ancount + nscount + arcount; 1151 1152 if (qdcount > 100 || total > 100) { 1153 ND_PRINT((ndo, "Corrupt packet??\n")); 1154 return; 1155 } 1156 1157 if (qdcount) { 1158 ND_PRINT((ndo, "QuestionRecords:\n")); 1159 for (i = 0; i < qdcount; i++) { 1160 p = smb_fdata(ndo, p, 1161 "|Name=[n1]\nQuestionType=[rw]\nQuestionClass=[rw]\n#", 1162 maxbuf, 0); 1163 if (p == NULL) 1164 goto out; 1165 } 1166 } 1167 1168 if (total) { 1169 ND_PRINT((ndo, "\nResourceRecords:\n")); 1170 for (i = 0; i < total; i++) { 1171 int rdlen; 1172 int restype; 1173 1174 p = smb_fdata(ndo, p, "Name=[n1]\n#", maxbuf, 0); 1175 if (p == NULL) 1176 goto out; 1177 ND_TCHECK_16BITS(p); 1178 restype = EXTRACT_16BITS(p); 1179 p = smb_fdata(ndo, p, "ResType=[rw]\nResClass=[rw]\nTTL=[rD]\n", p + 8, 0); 1180 if (p == NULL) 1181 goto out; 1182 ND_TCHECK_16BITS(p); 1183 rdlen = EXTRACT_16BITS(p); 1184 ND_PRINT((ndo, "ResourceLength=%d\nResourceData=\n", rdlen)); 1185 p += 2; 1186 if (rdlen == 6) { 1187 p = smb_fdata(ndo, p, "AddrType=[rw]\nAddress=[b.b.b.b]\n", p + rdlen, 0); 1188 if (p == NULL) 1189 goto out; 1190 } else { 1191 if (restype == 0x21) { 1192 int numnames; 1193 1194 ND_TCHECK(*p); 1195 numnames = p[0]; 1196 p = smb_fdata(ndo, p, "NumNames=[B]\n", p + 1, 0); 1197 if (p == NULL) 1198 goto out; 1199 while (numnames--) { 1200 p = smb_fdata(ndo, p, "Name=[n2]\t#", maxbuf, 0); 1201 if (p == NULL) 1202 goto out; 1203 ND_TCHECK(*p); 1204 if (p[0] & 0x80) 1205 ND_PRINT((ndo, "<GROUP> ")); 1206 switch (p[0] & 0x60) { 1207 case 0x00: ND_PRINT((ndo, "B ")); break; 1208 case 0x20: ND_PRINT((ndo, "P ")); break; 1209 case 0x40: ND_PRINT((ndo, "M ")); break; 1210 case 0x60: ND_PRINT((ndo, "_ ")); break; 1211 } 1212 if (p[0] & 0x10) 1213 ND_PRINT((ndo, "<DEREGISTERING> ")); 1214 if (p[0] & 0x08) 1215 ND_PRINT((ndo, "<CONFLICT> ")); 1216 if (p[0] & 0x04) 1217 ND_PRINT((ndo, "<ACTIVE> ")); 1218 if (p[0] & 0x02) 1219 ND_PRINT((ndo, "<PERMANENT> ")); 1220 ND_PRINT((ndo, "\n")); 1221 p += 2; 1222 } 1223 } else { 1224 smb_print_data(ndo, p, min(rdlen, length - (p - data))); 1225 p += rdlen; 1226 } 1227 } 1228 } 1229 } 1230 1231 if (p < maxbuf) 1232 smb_fdata(ndo, p, "AdditionalData:\n", maxbuf, 0); 1233 1234 out: 1235 ND_PRINT((ndo, "\n")); 1236 return; 1237 trunc: 1238 ND_PRINT((ndo, "%s", tstr)); 1239 } 1240 1241 /* 1242 * Print an SMB-over-TCP packet received across tcp on port 445 1243 */ 1244 void 1245 smb_tcp_print(netdissect_options *ndo, 1246 const u_char * data, int length) 1247 { 1248 int caplen; 1249 u_int smb_len; 1250 const u_char *maxbuf; 1251 1252 if (length < 4) 1253 goto trunc; 1254 if (ndo->ndo_snapend < data) 1255 goto trunc; 1256 caplen = ndo->ndo_snapend - data; 1257 if (caplen < 4) 1258 goto trunc; 1259 maxbuf = data + caplen; 1260 smb_len = EXTRACT_24BITS(data + 1); 1261 length -= 4; 1262 caplen -= 4; 1263 1264 startbuf = data; 1265 data += 4; 1266 1267 if (smb_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) { 1268 if ((int)smb_len > caplen) { 1269 if ((int)smb_len > length) 1270 ND_PRINT((ndo, " WARNING: Packet is continued in later TCP segments\n")); 1271 else 1272 ND_PRINT((ndo, " WARNING: Short packet. Try increasing the snap length by %d\n", 1273 smb_len - caplen)); 1274 } else 1275 ND_PRINT((ndo, " ")); 1276 print_smb(ndo, data, maxbuf > data + smb_len ? data + smb_len : maxbuf); 1277 } else 1278 ND_PRINT((ndo, " SMB-over-TCP packet:(raw data or continuation?)\n")); 1279 return; 1280 trunc: 1281 ND_PRINT((ndo, "%s", tstr)); 1282 } 1283 1284 /* 1285 * print a NBT packet received across udp on port 138 1286 */ 1287 void 1288 nbt_udp138_print(netdissect_options *ndo, 1289 const u_char *data, int length) 1290 { 1291 const u_char *maxbuf = data + length; 1292 1293 if (maxbuf > ndo->ndo_snapend) 1294 maxbuf = ndo->ndo_snapend; 1295 if (maxbuf <= data) 1296 return; 1297 startbuf = data; 1298 1299 if (ndo->ndo_vflag < 2) { 1300 ND_PRINT((ndo, "NBT UDP PACKET(138)")); 1301 return; 1302 } 1303 1304 data = smb_fdata(ndo, data, 1305 "\n>>> NBT UDP PACKET(138) Res=[rw] ID=[rw] IP=[b.b.b.b] Port=[rd] Length=[rd] Res2=[rw]\nSourceName=[n1]\nDestName=[n1]\n#", 1306 maxbuf, 0); 1307 1308 if (data != NULL) { 1309 /* If there isn't enough data for "\377SMB", don't check for it. */ 1310 if (&data[3] >= maxbuf) 1311 goto out; 1312 1313 if (memcmp(data, "\377SMB",4) == 0) 1314 print_smb(ndo, data, maxbuf); 1315 } 1316 out: 1317 ND_PRINT((ndo, "\n")); 1318 } 1319 1320 1321 /* 1322 print netbeui frames 1323 */ 1324 static struct nbf_strings { 1325 const char *name; 1326 const char *nonverbose; 1327 const char *verbose; 1328 } nbf_strings[0x20] = { 1329 { "Add Group Name Query", ", [P23]Name to add=[n2]#", 1330 "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" }, 1331 { "Add Name Query", ", [P23]Name to add=[n2]#", 1332 "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" }, 1333 { "Name In Conflict", NULL, NULL }, 1334 { "Status Query", NULL, NULL }, 1335 { NULL, NULL, NULL }, /* not used */ 1336 { NULL, NULL, NULL }, /* not used */ 1337 { NULL, NULL, NULL }, /* not used */ 1338 { "Terminate Trace", NULL, NULL }, 1339 { "Datagram", NULL, 1340 "[P7]Destination=[n2]\nSource=[n2]\n" }, 1341 { "Broadcast Datagram", NULL, 1342 "[P7]Destination=[n2]\nSource=[n2]\n" }, 1343 { "Name Query", ", [P7]Name=[n2]#", 1344 "[P1]SessionNumber=[B]\nNameType=[B][P2]\nResponseCorrelator=[w]\nName=[n2]\nName of sender=[n2]\n" }, 1345 { NULL, NULL, NULL }, /* not used */ 1346 { NULL, NULL, NULL }, /* not used */ 1347 { "Add Name Response", ", [P1]GroupName=[w] [P4]Destination=[n2] Source=[n2]#", 1348 "AddNameInProcess=[B]\nGroupName=[w]\nTransmitCorrelator=[w][P2]\nDestination=[n2]\nSource=[n2]\n" }, 1349 { "Name Recognized", NULL, 1350 "[P1]Data2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nDestination=[n2]\nSource=[n2]\n" }, 1351 { "Status Response", NULL, NULL }, 1352 { NULL, NULL, NULL }, /* not used */ 1353 { NULL, NULL, NULL }, /* not used */ 1354 { NULL, NULL, NULL }, /* not used */ 1355 { "Terminate Trace", NULL, NULL }, 1356 { "Data Ack", NULL, 1357 "[P3]TransmitCorrelator=[w][P2]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1358 { "Data First/Middle", NULL, 1359 "Flags=[{RECEIVE_CONTINUE|NO_ACK||PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1360 { "Data Only/Last", NULL, 1361 "Flags=[{|NO_ACK|PIGGYBACK_ACK_ALLOWED|PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1362 { "Session Confirm", NULL, 1363 "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1364 { "Session End", NULL, 1365 "[P1]Data2=[w][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1366 { "Session Initialize", NULL, 1367 "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1368 { "No Receive", NULL, 1369 "Flags=[{|SEND_NO_ACK}]\nDataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1370 { "Receive Outstanding", NULL, 1371 "[P1]DataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1372 { "Receive Continue", NULL, 1373 "[P2]TransmitCorrelator=[w]\n[P2]RemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1374 { NULL, NULL, NULL }, /* not used */ 1375 { NULL, NULL, NULL }, /* not used */ 1376 { "Session Alive", NULL, NULL } 1377 }; 1378 1379 void 1380 netbeui_print(netdissect_options *ndo, 1381 u_short control, const u_char *data, int length) 1382 { 1383 const u_char *maxbuf = data + length; 1384 int len; 1385 int command; 1386 const u_char *data2; 1387 int is_truncated = 0; 1388 1389 if (maxbuf > ndo->ndo_snapend) 1390 maxbuf = ndo->ndo_snapend; 1391 ND_TCHECK(data[4]); 1392 len = EXTRACT_LE_16BITS(data); 1393 command = data[4]; 1394 data2 = data + len; 1395 if (data2 >= maxbuf) { 1396 data2 = maxbuf; 1397 is_truncated = 1; 1398 } 1399 1400 startbuf = data; 1401 1402 if (ndo->ndo_vflag < 2) { 1403 ND_PRINT((ndo, "NBF Packet: ")); 1404 data = smb_fdata(ndo, data, "[P5]#", maxbuf, 0); 1405 } else { 1406 ND_PRINT((ndo, "\n>>> NBF Packet\nType=0x%X ", control)); 1407 data = smb_fdata(ndo, data, "Length=[d] Signature=[w] Command=[B]\n#", maxbuf, 0); 1408 } 1409 if (data == NULL) 1410 goto out; 1411 1412 if (command > 0x1f || nbf_strings[command].name == NULL) { 1413 if (ndo->ndo_vflag < 2) 1414 data = smb_fdata(ndo, data, "Unknown NBF Command#", data2, 0); 1415 else 1416 data = smb_fdata(ndo, data, "Unknown NBF Command\n", data2, 0); 1417 } else { 1418 if (ndo->ndo_vflag < 2) { 1419 ND_PRINT((ndo, "%s", nbf_strings[command].name)); 1420 if (nbf_strings[command].nonverbose != NULL) 1421 data = smb_fdata(ndo, data, nbf_strings[command].nonverbose, data2, 0); 1422 } else { 1423 ND_PRINT((ndo, "%s:\n", nbf_strings[command].name)); 1424 if (nbf_strings[command].verbose != NULL) 1425 data = smb_fdata(ndo, data, nbf_strings[command].verbose, data2, 0); 1426 else 1427 ND_PRINT((ndo, "\n")); 1428 } 1429 } 1430 1431 if (ndo->ndo_vflag < 2) 1432 return; 1433 1434 if (data == NULL) 1435 goto out; 1436 1437 if (is_truncated) { 1438 /* data2 was past the end of the buffer */ 1439 goto out; 1440 } 1441 1442 /* If this isn't a command that would contain an SMB message, quit. */ 1443 if (command != 0x08 && command != 0x09 && command != 0x15 && 1444 command != 0x16) 1445 goto out; 1446 1447 /* If there isn't enough data for "\377SMB", don't look for it. */ 1448 if (&data2[3] >= maxbuf) 1449 goto out; 1450 1451 if (memcmp(data2, "\377SMB",4) == 0) 1452 print_smb(ndo, data2, maxbuf); 1453 else { 1454 int i; 1455 for (i = 0; i < 128; i++) { 1456 if (&data2[i + 3] >= maxbuf) 1457 break; 1458 if (memcmp(&data2[i], "\377SMB", 4) == 0) { 1459 ND_PRINT((ndo, "found SMB packet at %d\n", i)); 1460 print_smb(ndo, &data2[i], maxbuf); 1461 break; 1462 } 1463 } 1464 } 1465 1466 out: 1467 ND_PRINT((ndo, "\n")); 1468 return; 1469 trunc: 1470 ND_PRINT((ndo, "%s", tstr)); 1471 } 1472 1473 1474 /* 1475 * print IPX-Netbios frames 1476 */ 1477 void 1478 ipx_netbios_print(netdissect_options *ndo, 1479 const u_char *data, u_int length) 1480 { 1481 /* 1482 * this is a hack till I work out how to parse the rest of the 1483 * NetBIOS-over-IPX stuff 1484 */ 1485 int i; 1486 const u_char *maxbuf; 1487 1488 maxbuf = data + length; 1489 /* Don't go past the end of the captured data in the packet. */ 1490 if (maxbuf > ndo->ndo_snapend) 1491 maxbuf = ndo->ndo_snapend; 1492 startbuf = data; 1493 for (i = 0; i < 128; i++) { 1494 if (&data[i + 4] > maxbuf) 1495 break; 1496 if (memcmp(&data[i], "\377SMB", 4) == 0) { 1497 smb_fdata(ndo, data, "\n>>> IPX transport ", &data[i], 0); 1498 print_smb(ndo, &data[i], maxbuf); 1499 ND_PRINT((ndo, "\n")); 1500 break; 1501 } 1502 } 1503 if (i == 128) 1504 smb_fdata(ndo, data, "\n>>> Unknown IPX ", maxbuf, 0); 1505 } 1506