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