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); 374 375 if (strcmp((const char *)(data1 + 2), "\\MAILSLOT\\BROWSE") == 0) { 376 print_browse(ndo, param, paramlen, data, datalen); 377 return; 378 } 379 380 if (strcmp((const char *)(data1 + 2), "\\PIPE\\LANMAN") == 0) { 381 print_ipc(ndo, param, paramlen, data, datalen); 382 return; 383 } 384 385 if (paramlen) 386 smb_fdata(ndo, param, f3, min(param + paramlen, maxbuf), unicodestr); 387 if (datalen) 388 smb_fdata(ndo, data, f4, min(data + datalen, maxbuf), unicodestr); 389 } 390 return; 391 trunc: 392 ND_PRINT((ndo, "%s", tstr)); 393 } 394 395 396 static void 397 print_negprot(netdissect_options *ndo, 398 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 399 { 400 u_int wct, bcc; 401 const char *f1 = NULL, *f2 = NULL; 402 403 ND_TCHECK(words[0]); 404 wct = words[0]; 405 if (request) 406 f2 = "*|Dialect=[Y]\n"; 407 else { 408 if (wct == 1) 409 f1 = "Core Protocol\nDialectIndex=[d]"; 410 else if (wct == 17) 411 f1 = "NT1 Protocol\nDialectIndex=[d]\nSecMode=[B]\nMaxMux=[d]\nNumVcs=[d]\nMaxBuffer=[D]\nRawSize=[D]\nSessionKey=[W]\nCapabilities=[W]\nServerTime=[T3]TimeZone=[d]\nCryptKey="; 412 else if (wct == 13) 413 f1 = "Coreplus/Lanman1/Lanman2 Protocol\nDialectIndex=[d]\nSecMode=[w]\nMaxXMit=[d]\nMaxMux=[d]\nMaxVcs=[d]\nBlkMode=[w]\nSessionKey=[W]\nServerTime=[T1]TimeZone=[d]\nRes=[W]\nCryptKey="; 414 } 415 416 if (f1) 417 smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf), 418 unicodestr); 419 else 420 smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1))); 421 422 ND_TCHECK2(*data, 2); 423 bcc = EXTRACT_LE_16BITS(data); 424 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 425 if (bcc > 0) { 426 if (f2) 427 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 428 maxbuf), unicodestr); 429 else 430 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 431 } 432 return; 433 trunc: 434 ND_PRINT((ndo, "%s", tstr)); 435 } 436 437 static void 438 print_sesssetup(netdissect_options *ndo, 439 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 440 { 441 u_int wct, bcc; 442 const char *f1 = NULL, *f2 = NULL; 443 444 ND_TCHECK(words[0]); 445 wct = words[0]; 446 if (request) { 447 if (wct == 10) 448 f1 = "Com2=[w]\nOff2=[d]\nBufSize=[d]\nMpxMax=[d]\nVcNum=[d]\nSessionKey=[W]\nPassLen=[d]\nCryptLen=[d]\nCryptOff=[d]\nPass&Name=\n"; 449 else 450 f1 = "Com2=[B]\nRes1=[B]\nOff2=[d]\nMaxBuffer=[d]\nMaxMpx=[d]\nVcNumber=[d]\nSessionKey=[W]\nCaseInsensitivePasswordLength=[d]\nCaseSensitivePasswordLength=[d]\nRes=[W]\nCapabilities=[W]\nPass1&Pass2&Account&Domain&OS&LanMan=\n"; 451 } else { 452 if (wct == 3) { 453 f1 = "Com2=[w]\nOff2=[d]\nAction=[w]\n"; 454 } else if (wct == 13) { 455 f1 = "Com2=[B]\nRes=[B]\nOff2=[d]\nAction=[w]\n"; 456 f2 = "NativeOS=[S]\nNativeLanMan=[S]\nPrimaryDomain=[S]\n"; 457 } 458 } 459 460 if (f1) 461 smb_fdata(ndo, words + 1, f1, min(words + 1 + wct * 2, maxbuf), 462 unicodestr); 463 else 464 smb_print_data(ndo, words + 1, min(wct * 2, PTR_DIFF(maxbuf, words + 1))); 465 466 ND_TCHECK2(*data, 2); 467 bcc = EXTRACT_LE_16BITS(data); 468 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 469 if (bcc > 0) { 470 if (f2) 471 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 472 maxbuf), unicodestr); 473 else 474 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 475 } 476 return; 477 trunc: 478 ND_PRINT((ndo, "%s", tstr)); 479 } 480 481 static void 482 print_lockingandx(netdissect_options *ndo, 483 const u_char *words, const u_char *data, const u_char *buf _U_, const u_char *maxbuf) 484 { 485 u_int wct, bcc; 486 const u_char *maxwords; 487 const char *f1 = NULL, *f2 = NULL; 488 489 ND_TCHECK(words[0]); 490 wct = words[0]; 491 if (request) { 492 f1 = "Com2=[w]\nOff2=[d]\nHandle=[d]\nLockType=[w]\nTimeOut=[D]\nUnlockCount=[d]\nLockCount=[d]\n"; 493 ND_TCHECK(words[7]); 494 if (words[7] & 0x10) 495 f2 = "*Process=[d]\n[P2]Offset=[M]\nLength=[M]\n"; 496 else 497 f2 = "*Process=[d]\nOffset=[D]\nLength=[D]\n"; 498 } else { 499 f1 = "Com2=[w]\nOff2=[d]\n"; 500 } 501 502 maxwords = min(words + 1 + wct * 2, maxbuf); 503 if (wct) 504 smb_fdata(ndo, words + 1, f1, maxwords, unicodestr); 505 506 ND_TCHECK2(*data, 2); 507 bcc = EXTRACT_LE_16BITS(data); 508 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 509 if (bcc > 0) { 510 if (f2) 511 smb_fdata(ndo, data + 2, f2, min(data + 2 + EXTRACT_LE_16BITS(data), 512 maxbuf), unicodestr); 513 else 514 smb_print_data(ndo, data + 2, min(EXTRACT_LE_16BITS(data), PTR_DIFF(maxbuf, data + 2))); 515 } 516 return; 517 trunc: 518 ND_PRINT((ndo, "%s", tstr)); 519 } 520 521 522 static const struct smbfns smb_fns[] = { 523 { -1, "SMBunknown", 0, DEFDESCRIPT }, 524 525 { SMBtcon, "SMBtcon", 0, 526 { NULL, "Path=[Z]\nPassword=[Z]\nDevice=[Z]\n", 527 "MaxXmit=[d]\nTreeId=[d]\n", NULL, 528 NULL } }, 529 530 { SMBtdis, "SMBtdis", 0, DEFDESCRIPT }, 531 { SMBexit, "SMBexit", 0, DEFDESCRIPT }, 532 { SMBioctl, "SMBioctl", 0, DEFDESCRIPT }, 533 534 { SMBecho, "SMBecho", 0, 535 { "ReverbCount=[d]\n", NULL, 536 "SequenceNum=[d]\n", NULL, 537 NULL } }, 538 539 { SMBulogoffX, "SMBulogoffX", FLG_CHAIN, DEFDESCRIPT }, 540 541 { SMBgetatr, "SMBgetatr", 0, 542 { NULL, "Path=[Z]\n", 543 "Attribute=[A]\nTime=[T2]Size=[D]\nRes=([w,w,w,w,w])\n", NULL, 544 NULL } }, 545 546 { SMBsetatr, "SMBsetatr", 0, 547 { "Attribute=[A]\nTime=[T2]Res=([w,w,w,w,w])\n", "Path=[Z]\n", 548 NULL, NULL, NULL } }, 549 550 { SMBchkpth, "SMBchkpth", 0, 551 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 552 553 { SMBsearch, "SMBsearch", 0, 554 { "Count=[d]\nAttrib=[A]\n", 555 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\n", 556 "Count=[d]\n", 557 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 558 NULL } }, 559 560 { SMBopen, "SMBopen", 0, 561 { "Mode=[w]\nAttribute=[A]\n", "Path=[Z]\n", 562 "Handle=[d]\nOAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\n", 563 NULL, NULL } }, 564 565 { SMBcreate, "SMBcreate", 0, 566 { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } }, 567 568 { SMBmknew, "SMBmknew", 0, 569 { "Attrib=[A]\nTime=[T2]", "Path=[Z]\n", "Handle=[d]\n", NULL, NULL } }, 570 571 { SMBunlink, "SMBunlink", 0, 572 { "Attrib=[A]\n", "Path=[Z]\n", NULL, NULL, NULL } }, 573 574 { SMBread, "SMBread", 0, 575 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 576 "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } }, 577 578 { SMBwrite, "SMBwrite", 0, 579 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 580 "Count=[d]\n", NULL, NULL } }, 581 582 { SMBclose, "SMBclose", 0, 583 { "Handle=[d]\nTime=[T2]", NULL, NULL, NULL, NULL } }, 584 585 { SMBmkdir, "SMBmkdir", 0, 586 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 587 588 { SMBrmdir, "SMBrmdir", 0, 589 { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 590 591 { SMBdskattr, "SMBdskattr", 0, 592 { NULL, NULL, 593 "TotalUnits=[d]\nBlocksPerUnit=[d]\nBlockSize=[d]\nFreeUnits=[d]\nMedia=[w]\n", 594 NULL, NULL } }, 595 596 { SMBmv, "SMBmv", 0, 597 { "Attrib=[A]\n", "OldPath=[Z]\nNewPath=[Z]\n", NULL, NULL, NULL } }, 598 599 /* 600 * this is a Pathworks specific call, allowing the 601 * changing of the root path 602 */ 603 { pSETDIR, "SMBsetdir", 0, { NULL, "Path=[Z]\n", NULL, NULL, NULL } }, 604 605 { SMBlseek, "SMBlseek", 0, 606 { "Handle=[d]\nMode=[w]\nOffset=[D]\n", "Offset=[D]\n", NULL, NULL, NULL } }, 607 608 { SMBflush, "SMBflush", 0, { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 609 610 { SMBsplopen, "SMBsplopen", 0, 611 { "SetupLen=[d]\nMode=[w]\n", "Ident=[Z]\n", "Handle=[d]\n", 612 NULL, NULL } }, 613 614 { SMBsplclose, "SMBsplclose", 0, 615 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 616 617 { SMBsplretq, "SMBsplretq", 0, 618 { "MaxCount=[d]\nStartIndex=[d]\n", NULL, 619 "Count=[d]\nIndex=[d]\n", 620 "*Time=[T2]Status=[B]\nJobID=[d]\nSize=[D]\nRes=[B]Name=[s16]\n", 621 NULL } }, 622 623 { SMBsplwr, "SMBsplwr", 0, 624 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 625 626 { SMBlock, "SMBlock", 0, 627 { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } }, 628 629 { SMBunlock, "SMBunlock", 0, 630 { "Handle=[d]\nCount=[D]\nOffset=[D]\n", NULL, NULL, NULL, NULL } }, 631 632 /* CORE+ PROTOCOL FOLLOWS */ 633 634 { SMBreadbraw, "SMBreadbraw", 0, 635 { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[d]\n", 636 NULL, NULL, NULL, NULL } }, 637 638 { SMBwritebraw, "SMBwritebraw", 0, 639 { "Handle=[d]\nTotalCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\n|DataSize=[d]\nDataOff=[d]\n", 640 NULL, "WriteRawAck", NULL, NULL } }, 641 642 { SMBwritec, "SMBwritec", 0, 643 { NULL, NULL, "Count=[d]\n", NULL, NULL } }, 644 645 { SMBwriteclose, "SMBwriteclose", 0, 646 { "Handle=[d]\nCount=[d]\nOffset=[D]\nTime=[T2]Res=([w,w,w,w,w,w])", 647 NULL, "Count=[d]\n", NULL, NULL } }, 648 649 { SMBlockread, "SMBlockread", 0, 650 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 651 "Count=[d]\nRes=([w,w,w,w])\n", NULL, NULL } }, 652 653 { SMBwriteunlock, "SMBwriteunlock", 0, 654 { "Handle=[d]\nByteCount=[d]\nOffset=[D]\nCountLeft=[d]\n", NULL, 655 "Count=[d]\n", NULL, NULL } }, 656 657 { SMBreadBmpx, "SMBreadBmpx", 0, 658 { "Handle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nRes=[w]\n", 659 NULL, 660 "Offset=[D]\nTotCount=[d]\nRemaining=[d]\nRes=([w,w])\nDataSize=[d]\nDataOff=[d]\n", 661 NULL, NULL } }, 662 663 { SMBwriteBmpx, "SMBwriteBmpx", 0, 664 { "Handle=[d]\nTotCount=[d]\nRes=[w]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nRes2=[W]\nDataSize=[d]\nDataOff=[d]\n", NULL, 665 "Remaining=[d]\n", NULL, NULL } }, 666 667 { SMBwriteBs, "SMBwriteBs", 0, 668 { "Handle=[d]\nTotCount=[d]\nOffset=[D]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\n", 669 NULL, "Count=[d]\n", NULL, NULL } }, 670 671 { SMBsetattrE, "SMBsetattrE", 0, 672 { "Handle=[d]\nCreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]", NULL, 673 NULL, NULL, NULL } }, 674 675 { SMBgetattrE, "SMBgetattrE", 0, 676 { "Handle=[d]\n", NULL, 677 "CreationTime=[T2]AccessTime=[T2]ModifyTime=[T2]Size=[D]\nAllocSize=[D]\nAttribute=[A]\n", 678 NULL, NULL } }, 679 680 { SMBtranss, "SMBtranss", 0, DEFDESCRIPT }, 681 { SMBioctls, "SMBioctls", 0, DEFDESCRIPT }, 682 683 { SMBcopy, "SMBcopy", 0, 684 { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n", 685 "CopyCount=[d]\n", "|ErrStr=[S]\n", NULL } }, 686 687 { SMBmove, "SMBmove", 0, 688 { "TreeID2=[d]\nOFun=[w]\nFlags=[w]\n", "Path=[S]\nNewPath=[S]\n", 689 "MoveCount=[d]\n", "|ErrStr=[S]\n", NULL } }, 690 691 { SMBopenX, "SMBopenX", FLG_CHAIN, 692 { "Com2=[w]\nOff2=[d]\nFlags=[w]\nMode=[w]\nSearchAttrib=[A]\nAttrib=[A]\nTime=[T2]OFun=[w]\nSize=[D]\nTimeOut=[D]\nRes=[W]\n", 693 "Path=[S]\n", 694 "Com2=[w]\nOff2=[d]\nHandle=[d]\nAttrib=[A]\nTime=[T2]Size=[D]\nAccess=[w]\nType=[w]\nState=[w]\nAction=[w]\nFileID=[W]\nRes=[w]\n", 695 NULL, NULL } }, 696 697 { SMBreadX, "SMBreadX", FLG_CHAIN, 698 { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nMaxCount=[d]\nMinCount=[d]\nTimeOut=[D]\nCountLeft=[d]\n", 699 NULL, 700 "Com2=[w]\nOff2=[d]\nRemaining=[d]\nRes=[W]\nDataSize=[d]\nDataOff=[d]\nRes=([w,w,w,w])\n", 701 NULL, NULL } }, 702 703 { SMBwriteX, "SMBwriteX", FLG_CHAIN, 704 { "Com2=[w]\nOff2=[d]\nHandle=[d]\nOffset=[D]\nTimeOut=[D]\nWMode=[w]\nCountLeft=[d]\nRes=[w]\nDataSize=[d]\nDataOff=[d]\n", 705 NULL, 706 "Com2=[w]\nOff2=[d]\nCount=[d]\nRemaining=[d]\nRes=[W]\n", 707 NULL, NULL } }, 708 709 { SMBffirst, "SMBffirst", 0, 710 { "Count=[d]\nAttrib=[A]\n", 711 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 712 "Count=[d]\n", 713 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 714 NULL } }, 715 716 { SMBfunique, "SMBfunique", 0, 717 { "Count=[d]\nAttrib=[A]\n", 718 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 719 "Count=[d]\n", 720 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 721 NULL } }, 722 723 { SMBfclose, "SMBfclose", 0, 724 { "Count=[d]\nAttrib=[A]\n", 725 "Path=[Z]\nBlkType=[B]\nBlkLen=[d]\n|Res1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\n", 726 "Count=[d]\n", 727 "BlkType=[B]\nBlkLen=[d]\n*\nRes1=[B]\nMask=[s11]\nSrv1=[B]\nDirIndex=[d]\nSrv2=[w]\nRes2=[W]\nAttrib=[a]\nTime=[T1]Size=[D]\nName=[s13]\n", 728 NULL } }, 729 730 { SMBfindnclose, "SMBfindnclose", 0, 731 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 732 733 { SMBfindclose, "SMBfindclose", 0, 734 { "Handle=[d]\n", NULL, NULL, NULL, NULL } }, 735 736 { SMBsends, "SMBsends", 0, 737 { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } }, 738 739 { SMBsendstrt, "SMBsendstrt", 0, 740 { NULL, "Source=[Z]\nDest=[Z]\n", "GroupID=[d]\n", NULL, NULL } }, 741 742 { SMBsendend, "SMBsendend", 0, 743 { "GroupID=[d]\n", NULL, NULL, NULL, NULL } }, 744 745 { SMBsendtxt, "SMBsendtxt", 0, 746 { "GroupID=[d]\n", NULL, NULL, NULL, NULL } }, 747 748 { SMBsendb, "SMBsendb", 0, 749 { NULL, "Source=[Z]\nDest=[Z]\n", NULL, NULL, NULL } }, 750 751 { SMBfwdname, "SMBfwdname", 0, DEFDESCRIPT }, 752 { SMBcancelf, "SMBcancelf", 0, DEFDESCRIPT }, 753 { SMBgetmac, "SMBgetmac", 0, DEFDESCRIPT }, 754 755 { SMBnegprot, "SMBnegprot", 0, 756 { NULL, NULL, NULL, NULL, print_negprot } }, 757 758 { SMBsesssetupX, "SMBsesssetupX", FLG_CHAIN, 759 { NULL, NULL, NULL, NULL, print_sesssetup } }, 760 761 { SMBtconX, "SMBtconX", FLG_CHAIN, 762 { "Com2=[w]\nOff2=[d]\nFlags=[w]\nPassLen=[d]\nPasswd&Path&Device=\n", 763 NULL, "Com2=[w]\nOff2=[d]\n", "ServiceType=[R]\n", NULL } }, 764 765 { SMBlockingX, "SMBlockingX", FLG_CHAIN, 766 { NULL, NULL, NULL, NULL, print_lockingandx } }, 767 768 { SMBtrans2, "SMBtrans2", 0, { NULL, NULL, NULL, NULL, print_trans2 } }, 769 770 { SMBtranss2, "SMBtranss2", 0, DEFDESCRIPT }, 771 { SMBctemp, "SMBctemp", 0, DEFDESCRIPT }, 772 { SMBreadBs, "SMBreadBs", 0, DEFDESCRIPT }, 773 { SMBtrans, "SMBtrans", 0, { NULL, NULL, NULL, NULL, print_trans } }, 774 775 { SMBnttrans, "SMBnttrans", 0, DEFDESCRIPT }, 776 { SMBnttranss, "SMBnttranss", 0, DEFDESCRIPT }, 777 778 { SMBntcreateX, "SMBntcreateX", FLG_CHAIN, 779 { "Com2=[w]\nOff2=[d]\nRes=[b]\nNameLen=[ld]\nFlags=[W]\nRootDirectoryFid=[D]\nAccessMask=[W]\nAllocationSize=[L]\nExtFileAttributes=[W]\nShareAccess=[W]\nCreateDisposition=[W]\nCreateOptions=[W]\nImpersonationLevel=[W]\nSecurityFlags=[b]\n", 780 "Path=[C]\n", 781 "Com2=[w]\nOff2=[d]\nOplockLevel=[b]\nFid=[d]\nCreateAction=[W]\nCreateTime=[T3]LastAccessTime=[T3]LastWriteTime=[T3]ChangeTime=[T3]ExtFileAttributes=[W]\nAllocationSize=[L]\nEndOfFile=[L]\nFileType=[w]\nDeviceState=[w]\nDirectory=[b]\n", 782 NULL, NULL } }, 783 784 { SMBntcancel, "SMBntcancel", 0, DEFDESCRIPT }, 785 786 { -1, NULL, 0, DEFDESCRIPT } 787 }; 788 789 790 /* 791 * print a SMB message 792 */ 793 static void 794 print_smb(netdissect_options *ndo, 795 const u_char *buf, const u_char *maxbuf) 796 { 797 uint16_t flags2; 798 int nterrcodes; 799 int command; 800 uint32_t nterror; 801 const u_char *words, *maxwords, *data; 802 const struct smbfns *fn; 803 const char *fmt_smbheader = 804 "[P4]SMB Command = [B]\nError class = [BP1]\nError code = [d]\nFlags1 = [B]\nFlags2 = [B][P13]\nTree ID = [d]\nProc ID = [d]\nUID = [d]\nMID = [d]\nWord Count = [b]\n"; 805 int smboffset; 806 807 ND_TCHECK(buf[9]); 808 request = (buf[9] & 0x80) ? 0 : 1; 809 startbuf = buf; 810 811 command = buf[4]; 812 813 fn = smbfind(command, smb_fns); 814 815 if (ndo->ndo_vflag > 1) 816 ND_PRINT((ndo, "\n")); 817 818 ND_PRINT((ndo, "SMB PACKET: %s (%s)\n", fn->name, request ? "REQUEST" : "REPLY")); 819 820 if (ndo->ndo_vflag < 2) 821 return; 822 823 ND_TCHECK_16BITS(&buf[10]); 824 flags2 = EXTRACT_LE_16BITS(&buf[10]); 825 unicodestr = flags2 & 0x8000; 826 nterrcodes = flags2 & 0x4000; 827 828 /* print out the header */ 829 smb_fdata(ndo, buf, fmt_smbheader, buf + 33, unicodestr); 830 831 if (nterrcodes) { 832 nterror = EXTRACT_LE_32BITS(&buf[5]); 833 if (nterror) 834 ND_PRINT((ndo, "NTError = %s\n", nt_errstr(nterror))); 835 } else { 836 if (buf[5]) 837 ND_PRINT((ndo, "SMBError = %s\n", smb_errstr(buf[5], EXTRACT_LE_16BITS(&buf[7])))); 838 } 839 840 smboffset = 32; 841 842 for (;;) { 843 const char *f1, *f2; 844 int wct; 845 u_int bcc; 846 int newsmboffset; 847 848 words = buf + smboffset; 849 ND_TCHECK(words[0]); 850 wct = words[0]; 851 data = words + 1 + wct * 2; 852 maxwords = min(data, maxbuf); 853 854 if (request) { 855 f1 = fn->descript.req_f1; 856 f2 = fn->descript.req_f2; 857 } else { 858 f1 = fn->descript.rep_f1; 859 f2 = fn->descript.rep_f2; 860 } 861 862 if (fn->descript.fn) 863 (*fn->descript.fn)(ndo, words, data, buf, maxbuf); 864 else { 865 if (wct) { 866 if (f1) 867 smb_fdata(ndo, words + 1, f1, words + 1 + wct * 2, unicodestr); 868 else { 869 int i; 870 int v; 871 872 for (i = 0; &words[1 + 2 * i] < maxwords; i++) { 873 ND_TCHECK2(words[1 + 2 * i], 2); 874 v = EXTRACT_LE_16BITS(words + 1 + 2 * i); 875 ND_PRINT((ndo, "smb_vwv[%d]=%d (0x%X)\n", i, v, v)); 876 } 877 } 878 } 879 880 ND_TCHECK2(*data, 2); 881 bcc = EXTRACT_LE_16BITS(data); 882 ND_PRINT((ndo, "smb_bcc=%u\n", bcc)); 883 if (f2) { 884 if (bcc > 0) 885 smb_fdata(ndo, data + 2, f2, data + 2 + bcc, unicodestr); 886 } else { 887 if (bcc > 0) { 888 ND_PRINT((ndo, "smb_buf[]=\n")); 889 smb_print_data(ndo, data + 2, min(bcc, PTR_DIFF(maxbuf, data + 2))); 890 } 891 } 892 } 893 894 if ((fn->flags & FLG_CHAIN) == 0) 895 break; 896 if (wct == 0) 897 break; 898 ND_TCHECK(words[1]); 899 command = words[1]; 900 if (command == 0xFF) 901 break; 902 ND_TCHECK2(words[3], 2); 903 newsmboffset = EXTRACT_LE_16BITS(words + 3); 904 905 fn = smbfind(command, smb_fns); 906 907 ND_PRINT((ndo, "\nSMB PACKET: %s (%s) (CHAINED)\n", 908 fn->name, request ? "REQUEST" : "REPLY")); 909 if (newsmboffset <= smboffset) { 910 ND_PRINT((ndo, "Bad andX offset: %u <= %u\n", newsmboffset, smboffset)); 911 break; 912 } 913 smboffset = newsmboffset; 914 } 915 916 ND_PRINT((ndo, "\n")); 917 return; 918 trunc: 919 ND_PRINT((ndo, "%s", tstr)); 920 } 921 922 923 /* 924 * print a NBT packet received across tcp on port 139 925 */ 926 void 927 nbt_tcp_print(netdissect_options *ndo, 928 const u_char *data, int length) 929 { 930 int caplen; 931 int type; 932 u_int nbt_len; 933 const u_char *maxbuf; 934 935 if (length < 4) 936 goto trunc; 937 if (ndo->ndo_snapend < data) 938 goto trunc; 939 caplen = ndo->ndo_snapend - data; 940 if (caplen < 4) 941 goto trunc; 942 maxbuf = data + caplen; 943 type = data[0]; 944 nbt_len = EXTRACT_16BITS(data + 2); 945 length -= 4; 946 caplen -= 4; 947 948 startbuf = data; 949 950 if (ndo->ndo_vflag < 2) { 951 ND_PRINT((ndo, " NBT Session Packet: ")); 952 switch (type) { 953 case 0x00: 954 ND_PRINT((ndo, "Session Message")); 955 break; 956 957 case 0x81: 958 ND_PRINT((ndo, "Session Request")); 959 break; 960 961 case 0x82: 962 ND_PRINT((ndo, "Session Granted")); 963 break; 964 965 case 0x83: 966 { 967 int ecode; 968 969 if (nbt_len < 4) 970 goto trunc; 971 if (length < 4) 972 goto trunc; 973 if (caplen < 4) 974 goto trunc; 975 ecode = data[4]; 976 977 ND_PRINT((ndo, "Session Reject, ")); 978 switch (ecode) { 979 case 0x80: 980 ND_PRINT((ndo, "Not listening on called name")); 981 break; 982 case 0x81: 983 ND_PRINT((ndo, "Not listening for calling name")); 984 break; 985 case 0x82: 986 ND_PRINT((ndo, "Called name not present")); 987 break; 988 case 0x83: 989 ND_PRINT((ndo, "Called name present, but insufficient resources")); 990 break; 991 default: 992 ND_PRINT((ndo, "Unspecified error 0x%X", ecode)); 993 break; 994 } 995 } 996 break; 997 998 case 0x85: 999 ND_PRINT((ndo, "Session Keepalive")); 1000 break; 1001 1002 default: 1003 data = smb_fdata(ndo, data, "Unknown packet type [rB]", maxbuf, 0); 1004 break; 1005 } 1006 } else { 1007 ND_PRINT((ndo, "\n>>> NBT Session Packet\n")); 1008 switch (type) { 1009 case 0x00: 1010 data = smb_fdata(ndo, data, "[P1]NBT Session Message\nFlags=[B]\nLength=[rd]\n", 1011 data + 4, 0); 1012 if (data == NULL) 1013 break; 1014 if (nbt_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) { 1015 if ((int)nbt_len > caplen) { 1016 if ((int)nbt_len > length) 1017 ND_PRINT((ndo, "WARNING: Packet is continued in later TCP segments\n")); 1018 else 1019 ND_PRINT((ndo, "WARNING: Short packet. Try increasing the snap length by %d\n", 1020 nbt_len - caplen)); 1021 } 1022 print_smb(ndo, data, maxbuf > data + nbt_len ? data + nbt_len : maxbuf); 1023 } else 1024 ND_PRINT((ndo, "Session packet:(raw data or continuation?)\n")); 1025 break; 1026 1027 case 0x81: 1028 data = smb_fdata(ndo, data, 1029 "[P1]NBT Session Request\nFlags=[B]\nLength=[rd]\nDestination=[n1]\nSource=[n1]\n", 1030 maxbuf, 0); 1031 break; 1032 1033 case 0x82: 1034 data = smb_fdata(ndo, data, "[P1]NBT Session Granted\nFlags=[B]\nLength=[rd]\n", maxbuf, 0); 1035 break; 1036 1037 case 0x83: 1038 { 1039 const u_char *origdata; 1040 int ecode; 1041 1042 origdata = data; 1043 data = smb_fdata(ndo, data, "[P1]NBT SessionReject\nFlags=[B]\nLength=[rd]\nReason=[B]\n", 1044 maxbuf, 0); 1045 if (data == NULL) 1046 break; 1047 if (nbt_len >= 1 && caplen >= 1) { 1048 ecode = origdata[4]; 1049 switch (ecode) { 1050 case 0x80: 1051 ND_PRINT((ndo, "Not listening on called name\n")); 1052 break; 1053 case 0x81: 1054 ND_PRINT((ndo, "Not listening for calling name\n")); 1055 break; 1056 case 0x82: 1057 ND_PRINT((ndo, "Called name not present\n")); 1058 break; 1059 case 0x83: 1060 ND_PRINT((ndo, "Called name present, but insufficient resources\n")); 1061 break; 1062 default: 1063 ND_PRINT((ndo, "Unspecified error 0x%X\n", ecode)); 1064 break; 1065 } 1066 } 1067 } 1068 break; 1069 1070 case 0x85: 1071 data = smb_fdata(ndo, data, "[P1]NBT Session Keepalive\nFlags=[B]\nLength=[rd]\n", maxbuf, 0); 1072 break; 1073 1074 default: 1075 data = smb_fdata(ndo, data, "NBT - Unknown packet type\nType=[B]\n", maxbuf, 0); 1076 break; 1077 } 1078 ND_PRINT((ndo, "\n")); 1079 } 1080 return; 1081 trunc: 1082 ND_PRINT((ndo, "%s", tstr)); 1083 } 1084 1085 static const struct tok opcode_str[] = { 1086 { 0, "QUERY" }, 1087 { 5, "REGISTRATION" }, 1088 { 6, "RELEASE" }, 1089 { 7, "WACK" }, 1090 { 8, "REFRESH(8)" }, 1091 { 9, "REFRESH" }, 1092 { 15, "MULTIHOMED REGISTRATION" }, 1093 { 0, NULL } 1094 }; 1095 1096 /* 1097 * print a NBT packet received across udp on port 137 1098 */ 1099 void 1100 nbt_udp137_print(netdissect_options *ndo, 1101 const u_char *data, int length) 1102 { 1103 const u_char *maxbuf = data + length; 1104 int name_trn_id, response, opcode, nm_flags, rcode; 1105 int qdcount, ancount, nscount, arcount; 1106 const u_char *p; 1107 int total, i; 1108 1109 ND_TCHECK2(data[10], 2); 1110 name_trn_id = EXTRACT_16BITS(data); 1111 response = (data[2] >> 7); 1112 opcode = (data[2] >> 3) & 0xF; 1113 nm_flags = ((data[2] & 0x7) << 4) + (data[3] >> 4); 1114 rcode = data[3] & 0xF; 1115 qdcount = EXTRACT_16BITS(data + 4); 1116 ancount = EXTRACT_16BITS(data + 6); 1117 nscount = EXTRACT_16BITS(data + 8); 1118 arcount = EXTRACT_16BITS(data + 10); 1119 startbuf = data; 1120 1121 if (maxbuf <= data) 1122 return; 1123 1124 if (ndo->ndo_vflag > 1) 1125 ND_PRINT((ndo, "\n>>> ")); 1126 1127 ND_PRINT((ndo, "NBT UDP PACKET(137): %s", tok2str(opcode_str, "OPUNKNOWN", opcode))); 1128 if (response) { 1129 ND_PRINT((ndo, "; %s", rcode ? "NEGATIVE" : "POSITIVE")); 1130 } 1131 ND_PRINT((ndo, "; %s; %s", response ? "RESPONSE" : "REQUEST", 1132 (nm_flags & 1) ? "BROADCAST" : "UNICAST")); 1133 1134 if (ndo->ndo_vflag < 2) 1135 return; 1136 1137 ND_PRINT((ndo, "\nTrnID=0x%X\nOpCode=%d\nNmFlags=0x%X\nRcode=%d\nQueryCount=%d\nAnswerCount=%d\nAuthorityCount=%d\nAddressRecCount=%d\n", 1138 name_trn_id, opcode, nm_flags, rcode, qdcount, ancount, nscount, 1139 arcount)); 1140 1141 p = data + 12; 1142 1143 total = ancount + nscount + arcount; 1144 1145 if (qdcount > 100 || total > 100) { 1146 ND_PRINT((ndo, "Corrupt packet??\n")); 1147 return; 1148 } 1149 1150 if (qdcount) { 1151 ND_PRINT((ndo, "QuestionRecords:\n")); 1152 for (i = 0; i < qdcount; i++) { 1153 p = smb_fdata(ndo, p, 1154 "|Name=[n1]\nQuestionType=[rw]\nQuestionClass=[rw]\n#", 1155 maxbuf, 0); 1156 if (p == NULL) 1157 goto out; 1158 } 1159 } 1160 1161 if (total) { 1162 ND_PRINT((ndo, "\nResourceRecords:\n")); 1163 for (i = 0; i < total; i++) { 1164 int rdlen; 1165 int restype; 1166 1167 p = smb_fdata(ndo, p, "Name=[n1]\n#", maxbuf, 0); 1168 if (p == NULL) 1169 goto out; 1170 ND_TCHECK_16BITS(p); 1171 restype = EXTRACT_16BITS(p); 1172 p = smb_fdata(ndo, p, "ResType=[rw]\nResClass=[rw]\nTTL=[rD]\n", p + 8, 0); 1173 if (p == NULL) 1174 goto out; 1175 ND_TCHECK_16BITS(p); 1176 rdlen = EXTRACT_16BITS(p); 1177 ND_PRINT((ndo, "ResourceLength=%d\nResourceData=\n", rdlen)); 1178 p += 2; 1179 if (rdlen == 6) { 1180 p = smb_fdata(ndo, p, "AddrType=[rw]\nAddress=[b.b.b.b]\n", p + rdlen, 0); 1181 if (p == NULL) 1182 goto out; 1183 } else { 1184 if (restype == 0x21) { 1185 int numnames; 1186 1187 ND_TCHECK(*p); 1188 numnames = p[0]; 1189 p = smb_fdata(ndo, p, "NumNames=[B]\n", p + 1, 0); 1190 if (p == NULL) 1191 goto out; 1192 while (numnames--) { 1193 p = smb_fdata(ndo, p, "Name=[n2]\t#", maxbuf, 0); 1194 if (p == NULL) 1195 goto out; 1196 ND_TCHECK(*p); 1197 if (p[0] & 0x80) 1198 ND_PRINT((ndo, "<GROUP> ")); 1199 switch (p[0] & 0x60) { 1200 case 0x00: ND_PRINT((ndo, "B ")); break; 1201 case 0x20: ND_PRINT((ndo, "P ")); break; 1202 case 0x40: ND_PRINT((ndo, "M ")); break; 1203 case 0x60: ND_PRINT((ndo, "_ ")); break; 1204 } 1205 if (p[0] & 0x10) 1206 ND_PRINT((ndo, "<DEREGISTERING> ")); 1207 if (p[0] & 0x08) 1208 ND_PRINT((ndo, "<CONFLICT> ")); 1209 if (p[0] & 0x04) 1210 ND_PRINT((ndo, "<ACTIVE> ")); 1211 if (p[0] & 0x02) 1212 ND_PRINT((ndo, "<PERMANENT> ")); 1213 ND_PRINT((ndo, "\n")); 1214 p += 2; 1215 } 1216 } else { 1217 smb_print_data(ndo, p, min(rdlen, length - (p - data))); 1218 p += rdlen; 1219 } 1220 } 1221 } 1222 } 1223 1224 if (p < maxbuf) 1225 smb_fdata(ndo, p, "AdditionalData:\n", maxbuf, 0); 1226 1227 out: 1228 ND_PRINT((ndo, "\n")); 1229 return; 1230 trunc: 1231 ND_PRINT((ndo, "%s", tstr)); 1232 } 1233 1234 /* 1235 * Print an SMB-over-TCP packet received across tcp on port 445 1236 */ 1237 void 1238 smb_tcp_print(netdissect_options *ndo, 1239 const u_char * data, int length) 1240 { 1241 int caplen; 1242 u_int smb_len; 1243 const u_char *maxbuf; 1244 1245 if (length < 4) 1246 goto trunc; 1247 if (ndo->ndo_snapend < data) 1248 goto trunc; 1249 caplen = ndo->ndo_snapend - data; 1250 if (caplen < 4) 1251 goto trunc; 1252 maxbuf = data + caplen; 1253 smb_len = EXTRACT_24BITS(data + 1); 1254 length -= 4; 1255 caplen -= 4; 1256 1257 startbuf = data; 1258 data += 4; 1259 1260 if (smb_len >= 4 && caplen >= 4 && memcmp(data,"\377SMB",4) == 0) { 1261 if ((int)smb_len > caplen) { 1262 if ((int)smb_len > length) 1263 ND_PRINT((ndo, " WARNING: Packet is continued in later TCP segments\n")); 1264 else 1265 ND_PRINT((ndo, " WARNING: Short packet. Try increasing the snap length by %d\n", 1266 smb_len - caplen)); 1267 } else 1268 ND_PRINT((ndo, " ")); 1269 print_smb(ndo, data, maxbuf > data + smb_len ? data + smb_len : maxbuf); 1270 } else 1271 ND_PRINT((ndo, " SMB-over-TCP packet:(raw data or continuation?)\n")); 1272 return; 1273 trunc: 1274 ND_PRINT((ndo, "%s", tstr)); 1275 } 1276 1277 /* 1278 * print a NBT packet received across udp on port 138 1279 */ 1280 void 1281 nbt_udp138_print(netdissect_options *ndo, 1282 const u_char *data, int length) 1283 { 1284 const u_char *maxbuf = data + length; 1285 1286 if (maxbuf > ndo->ndo_snapend) 1287 maxbuf = ndo->ndo_snapend; 1288 if (maxbuf <= data) 1289 return; 1290 startbuf = data; 1291 1292 if (ndo->ndo_vflag < 2) { 1293 ND_PRINT((ndo, "NBT UDP PACKET(138)")); 1294 return; 1295 } 1296 1297 data = smb_fdata(ndo, data, 1298 "\n>>> NBT UDP PACKET(138) Res=[rw] ID=[rw] IP=[b.b.b.b] Port=[rd] Length=[rd] Res2=[rw]\nSourceName=[n1]\nDestName=[n1]\n#", 1299 maxbuf, 0); 1300 1301 if (data != NULL) { 1302 /* If there isn't enough data for "\377SMB", don't check for it. */ 1303 if (&data[3] >= maxbuf) 1304 goto out; 1305 1306 if (memcmp(data, "\377SMB",4) == 0) 1307 print_smb(ndo, data, maxbuf); 1308 } 1309 out: 1310 ND_PRINT((ndo, "\n")); 1311 } 1312 1313 1314 /* 1315 print netbeui frames 1316 */ 1317 static struct nbf_strings { 1318 const char *name; 1319 const char *nonverbose; 1320 const char *verbose; 1321 } nbf_strings[0x20] = { 1322 { "Add Group Name Query", ", [P23]Name to add=[n2]#", 1323 "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" }, 1324 { "Add Name Query", ", [P23]Name to add=[n2]#", 1325 "[P5]ResponseCorrelator=[w]\n[P16]Name to add=[n2]\n" }, 1326 { "Name In Conflict", NULL, NULL }, 1327 { "Status Query", NULL, NULL }, 1328 { NULL, NULL, NULL }, /* not used */ 1329 { NULL, NULL, NULL }, /* not used */ 1330 { NULL, NULL, NULL }, /* not used */ 1331 { "Terminate Trace", NULL, NULL }, 1332 { "Datagram", NULL, 1333 "[P7]Destination=[n2]\nSource=[n2]\n" }, 1334 { "Broadcast Datagram", NULL, 1335 "[P7]Destination=[n2]\nSource=[n2]\n" }, 1336 { "Name Query", ", [P7]Name=[n2]#", 1337 "[P1]SessionNumber=[B]\nNameType=[B][P2]\nResponseCorrelator=[w]\nName=[n2]\nName of sender=[n2]\n" }, 1338 { NULL, NULL, NULL }, /* not used */ 1339 { NULL, NULL, NULL }, /* not used */ 1340 { "Add Name Response", ", [P1]GroupName=[w] [P4]Destination=[n2] Source=[n2]#", 1341 "AddNameInProcess=[B]\nGroupName=[w]\nTransmitCorrelator=[w][P2]\nDestination=[n2]\nSource=[n2]\n" }, 1342 { "Name Recognized", NULL, 1343 "[P1]Data2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nDestination=[n2]\nSource=[n2]\n" }, 1344 { "Status Response", NULL, NULL }, 1345 { NULL, NULL, NULL }, /* not used */ 1346 { NULL, NULL, NULL }, /* not used */ 1347 { NULL, NULL, NULL }, /* not used */ 1348 { "Terminate Trace", NULL, NULL }, 1349 { "Data Ack", NULL, 1350 "[P3]TransmitCorrelator=[w][P2]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1351 { "Data First/Middle", NULL, 1352 "Flags=[{RECEIVE_CONTINUE|NO_ACK||PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1353 { "Data Only/Last", NULL, 1354 "Flags=[{|NO_ACK|PIGGYBACK_ACK_ALLOWED|PIGGYBACK_ACK_INCLUDED|}]\nResyncIndicator=[w][P2]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1355 { "Session Confirm", NULL, 1356 "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1357 { "Session End", NULL, 1358 "[P1]Data2=[w][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1359 { "Session Initialize", NULL, 1360 "Data1=[B]\nData2=[w]\nTransmitCorrelator=[w]\nResponseCorelator=[w]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1361 { "No Receive", NULL, 1362 "Flags=[{|SEND_NO_ACK}]\nDataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1363 { "Receive Outstanding", NULL, 1364 "[P1]DataBytesAccepted=[b][P4]\nRemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1365 { "Receive Continue", NULL, 1366 "[P2]TransmitCorrelator=[w]\n[P2]RemoteSessionNumber=[B]\nLocalSessionNumber=[B]\n" }, 1367 { NULL, NULL, NULL }, /* not used */ 1368 { NULL, NULL, NULL }, /* not used */ 1369 { "Session Alive", NULL, NULL } 1370 }; 1371 1372 void 1373 netbeui_print(netdissect_options *ndo, 1374 u_short control, const u_char *data, int length) 1375 { 1376 const u_char *maxbuf = data + length; 1377 int len; 1378 int command; 1379 const u_char *data2; 1380 int is_truncated = 0; 1381 1382 if (maxbuf > ndo->ndo_snapend) 1383 maxbuf = ndo->ndo_snapend; 1384 ND_TCHECK(data[4]); 1385 len = EXTRACT_LE_16BITS(data); 1386 command = data[4]; 1387 data2 = data + len; 1388 if (data2 >= maxbuf) { 1389 data2 = maxbuf; 1390 is_truncated = 1; 1391 } 1392 1393 startbuf = data; 1394 1395 if (ndo->ndo_vflag < 2) { 1396 ND_PRINT((ndo, "NBF Packet: ")); 1397 data = smb_fdata(ndo, data, "[P5]#", maxbuf, 0); 1398 } else { 1399 ND_PRINT((ndo, "\n>>> NBF Packet\nType=0x%X ", control)); 1400 data = smb_fdata(ndo, data, "Length=[d] Signature=[w] Command=[B]\n#", maxbuf, 0); 1401 } 1402 if (data == NULL) 1403 goto out; 1404 1405 if (command > 0x1f || nbf_strings[command].name == NULL) { 1406 if (ndo->ndo_vflag < 2) 1407 data = smb_fdata(ndo, data, "Unknown NBF Command#", data2, 0); 1408 else 1409 data = smb_fdata(ndo, data, "Unknown NBF Command\n", data2, 0); 1410 } else { 1411 if (ndo->ndo_vflag < 2) { 1412 ND_PRINT((ndo, "%s", nbf_strings[command].name)); 1413 if (nbf_strings[command].nonverbose != NULL) 1414 data = smb_fdata(ndo, data, nbf_strings[command].nonverbose, data2, 0); 1415 } else { 1416 ND_PRINT((ndo, "%s:\n", nbf_strings[command].name)); 1417 if (nbf_strings[command].verbose != NULL) 1418 data = smb_fdata(ndo, data, nbf_strings[command].verbose, data2, 0); 1419 else 1420 ND_PRINT((ndo, "\n")); 1421 } 1422 } 1423 1424 if (ndo->ndo_vflag < 2) 1425 return; 1426 1427 if (data == NULL) 1428 goto out; 1429 1430 if (is_truncated) { 1431 /* data2 was past the end of the buffer */ 1432 goto out; 1433 } 1434 1435 /* If this isn't a command that would contain an SMB message, quit. */ 1436 if (command != 0x08 && command != 0x09 && command != 0x15 && 1437 command != 0x16) 1438 goto out; 1439 1440 /* If there isn't enough data for "\377SMB", don't look for it. */ 1441 if (&data2[3] >= maxbuf) 1442 goto out; 1443 1444 if (memcmp(data2, "\377SMB",4) == 0) 1445 print_smb(ndo, data2, maxbuf); 1446 else { 1447 int i; 1448 for (i = 0; i < 128; i++) { 1449 if (&data2[i + 3] >= maxbuf) 1450 break; 1451 if (memcmp(&data2[i], "\377SMB", 4) == 0) { 1452 ND_PRINT((ndo, "found SMB packet at %d\n", i)); 1453 print_smb(ndo, &data2[i], maxbuf); 1454 break; 1455 } 1456 } 1457 } 1458 1459 out: 1460 ND_PRINT((ndo, "\n")); 1461 return; 1462 trunc: 1463 ND_PRINT((ndo, "%s", tstr)); 1464 } 1465 1466 1467 /* 1468 * print IPX-Netbios frames 1469 */ 1470 void 1471 ipx_netbios_print(netdissect_options *ndo, 1472 const u_char *data, u_int length) 1473 { 1474 /* 1475 * this is a hack till I work out how to parse the rest of the 1476 * NetBIOS-over-IPX stuff 1477 */ 1478 int i; 1479 const u_char *maxbuf; 1480 1481 maxbuf = data + length; 1482 /* Don't go past the end of the captured data in the packet. */ 1483 if (maxbuf > ndo->ndo_snapend) 1484 maxbuf = ndo->ndo_snapend; 1485 startbuf = data; 1486 for (i = 0; i < 128; i++) { 1487 if (&data[i + 4] > maxbuf) 1488 break; 1489 if (memcmp(&data[i], "\377SMB", 4) == 0) { 1490 smb_fdata(ndo, data, "\n>>> IPX transport ", &data[i], 0); 1491 print_smb(ndo, &data[i], maxbuf); 1492 ND_PRINT((ndo, "\n")); 1493 break; 1494 } 1495 } 1496 if (i == 128) 1497 smb_fdata(ndo, data, "\n>>> Unknown IPX ", maxbuf, 0); 1498 } 1499
