librpc/tools/ndrdump.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB torture tester
   4    Copyright (C) Andrew Tridgell 2003
   5    Copyright (C) Jelmer Vernooij 2006
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "system/locale.h"
  24 #include "librpc/ndr/libndr.h"
  25 #include "librpc/ndr/ndr_table.h"
  26 #include "librpc/gen_ndr/ndr_dcerpc.h"
  27 #include "lib/cmdline/popt_common.h"
  28 #include "param/param.h"
  29 #include "lib/util/base64.h"
  30
  31 static const struct ndr_interface_call *find_function(
  32         const struct ndr_interface_table *p,
  33         const char *function)
  34 {
  35         unsigned int i;
  36         if (isdigit(function[0])) {
  37                 char *eptr = NULL;
  38                 i = strtoul(function, &eptr, 0);
  39                 if (i >= p->num_calls
  40                     || eptr == NULL
  41                     || eptr[0] != '\0') {
  42                         printf("Function number '%s' not found\n",
  43                                function);
  44                         exit(1);
  45                 }
  46                 return &p->calls[i];
  47         }
  48         for (i=0;i<p->num_calls;i++) {
  49                 if (strcmp(p->calls[i].name, function) == 0) {
  50                         break;
  51                 }
  52         }
  53         if (i == p->num_calls) {
  54                 printf("Function '%s' not found\n", function);
  55                 exit(1);
  56         }
  57         return &p->calls[i];
  58 }
  59
  60 /*
  61  * Find a public structure on the pipe and return it as if it were
  62  * a function (as the rest of ndrdump is based around functions)
  63  */
  64 static const struct ndr_interface_call *find_struct(
  65         const struct ndr_interface_table *p,
  66         const char *struct_name,
  67         struct ndr_interface_call *out_buffer)
  68 {
  69         unsigned int i;
  70         const struct ndr_interface_public_struct *public_struct = NULL;
  71         if (isdigit(struct_name[0])) {
  72                 char *eptr = NULL;
  73                 i = strtoul(struct_name, &eptr, 0);
  74                 if (i >= p->num_public_structs
  75                     || eptr == NULL
  76                     || eptr[0] != '\0') {
  77                         printf("Public structure number '%s' not found\n",
  78                                struct_name);
  79                         exit(1);
  80                 }
  81                 public_struct = &p->public_structs[i];
  82         } else {
  83                 for (i=0;i<p->num_public_structs;i++) {
  84                         if (strcmp(p->public_structs[i].name, struct_name) == 0) {
  85                                 break;
  86                         }
  87                 }
  88                 if (i == p->num_public_structs) {
  89                         printf("Public structure '%s' not found\n", struct_name);
  90                         exit(1);
  91                 }
  92                 public_struct = &p->public_structs[i];
  93         }
  94         *out_buffer = (struct ndr_interface_call) {
  95                 .name = public_struct->name,
  96                 .struct_size = public_struct->struct_size,
  97                 .ndr_pull = public_struct->ndr_pull,
  98                 .ndr_push = public_struct->ndr_push,
  99                 .ndr_print = public_struct->ndr_print
 100         };
 101         return out_buffer;
 102 }
 103
 104 _NORETURN_ static void show_pipes(void)
 105 {
 106         const struct ndr_interface_list *l;
 107         printf("\nYou must specify a pipe\n");
 108         printf("known pipes are:\n");
 109         for (l=ndr_table_list();l;l=l->next) {
 110                 if(l->table->helpstring) {
 111                         printf("\t%s - %s\n", l->table->name, l->table->helpstring);
 112                 } else {
 113                         printf("\t%s\n", l->table->name);
 114                 }
 115         }
 116         exit(1);
 117 }
 118
 119 _NORETURN_ static void show_functions(const struct ndr_interface_table *p)
 120 {
 121         int i;
 122         printf("\nYou must specify a function\n");
 123         printf("known functions on '%s' are:\n", p->name);
 124         for (i=0;i<p->num_calls;i++) {
 125                 printf("\t0x%02x (%2d) %s\n", i, i, p->calls[i].name);
 126         }
 127         printf("known public structures on '%s' are:\n", p->name);
 128         for (i=0;i<p->num_public_structs;i++) {
 129                 printf("\t%s\n", p->public_structs[i].name);
 130         }
 131         exit(1);
 132 }
 133
 134 static char *stdin_load(TALLOC_CTX *mem_ctx, size_t *size)
 135 {
 136         int num_read, total_len = 0;
 137         char buf[255];
 138         char *result = NULL;
 139
 140         while((num_read = read(STDIN_FILENO, buf, 255)) > 0) {
 141
 142                 if (result) {
 143                         result = talloc_realloc(
 144                                 mem_ctx, result, char, total_len + num_read);
 145                 } else {
 146                         result = talloc_array(mem_ctx, char, num_read);
 147                 }
 148
 149                 memcpy(result + total_len, buf, num_read);
 150
 151                 total_len += num_read;
 152         }
 153
 154         if (size)
 155                 *size = total_len;
 156
 157         return result;
 158 }
 159
 160 static const struct ndr_interface_table *load_iface_from_plugin(const char *plugin, const char *pipe_name)
 161 {
 162         const struct ndr_interface_table *p;
 163         void *handle;
 164         char *symbol;
 165
 166         handle = dlopen(plugin, RTLD_NOW);
 167         if (handle == NULL) {
 168                 printf("%s: Unable to open: %s\n", plugin, dlerror());
 169                 return NULL;
 170         }
 171
 172         symbol = talloc_asprintf(NULL, "ndr_table_%s", pipe_name);
 173         p = (const struct ndr_interface_table *)dlsym(handle, symbol);
 174
 175         if (!p) {
 176                 printf("%s: Unable to find DCE/RPC interface table for '%s': %s\n", plugin, pipe_name, dlerror());
 177                 talloc_free(symbol);
 178                 dlclose(handle);
 179                 return NULL;
 180         }
 181
 182         talloc_free(symbol);
 183
 184         return p;
 185 }
 186
 187 static void ndrdump_data(uint8_t *d, uint32_t l, bool force)
 188 {
 189         dump_data_file(d, l, !force, stdout);
 190 }
 191
 192 static NTSTATUS ndrdump_pull_and_print_pipes(const char *function,
 193                                 struct ndr_pull *ndr_pull,
 194                                 struct ndr_print *ndr_print,
 195                                 const struct ndr_interface_call_pipes *pipes)
 196 {
 197         enum ndr_err_code ndr_err;
 198         uint32_t i;
 199
 200         for (i=0; i < pipes->num_pipes; i++) {
 201                 uint64_t idx = 0;
 202                 while (true) {
 203                         void *saved_mem_ctx;
 204                         uint32_t *count;
 205                         void *c;
 206                         char *n;
 207
 208                         c = talloc_zero_size(ndr_pull, pipes->pipes[i].chunk_struct_size);
 209                         talloc_set_name(c, "struct %s", pipes->pipes[i].name);
 210                         /*
 211                          * Note: the first struct member is always
 212                          * 'uint32_t count;'
 213                          */
 214                         count = (uint32_t *)c;
 215
 216                         n = talloc_asprintf(c, "%s: %s[%llu]",
 217                                         function, pipes->pipes[i].name,
 218                                         (unsigned long long)idx);
 219
 220                         saved_mem_ctx = ndr_pull->current_mem_ctx;
 221                         ndr_pull->current_mem_ctx = c;
 222                         ndr_err = pipes->pipes[i].ndr_pull(ndr_pull, NDR_SCALARS, c);
 223                         ndr_pull->current_mem_ctx = saved_mem_ctx;
 224
 225                         printf("pull returned %s\n",
 226                                ndr_map_error2string(ndr_err));
 227                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 228                                 talloc_free(c);
 229                                 return ndr_map_error2ntstatus(ndr_err);
 230                         }
 231                         pipes->pipes[i].ndr_print(ndr_print, n, c);
 232                         if (*count == 0) {
 233                                 talloc_free(c);
 234                                 break;
 235                         }
 236                         talloc_free(c);
 237                         idx++;
 238                 }
 239         }
 240
 241         return NT_STATUS_OK;
 242 }
 243
 244 static void ndr_print_dummy(struct ndr_print *ndr, const char *format, ...)
 245 {
 246         /* This is here so that you can turn ndr printing off for the purposes
 247            of benchmarking ndr parsing. */
 248 }
 249
 250  int main(int argc, const char *argv[])
 251 {
 252         const struct ndr_interface_table *p = NULL;
 253         const struct ndr_interface_call *f;
 254         struct ndr_interface_call f_buffer;
 255         const char *pipe_name = NULL;
 256         const char *filename = NULL;
 257         /*
 258          * The format type:
 259          *   in:     a request
 260          *   out:    a response
 261          *   struct: a public structure
 262          */
 263         const char *type = NULL;
 264         /*
 265          * Format is either the name of the decoding function or the
 266          * name of a public structure
 267          */
 268         const char *format = NULL;
 269         const char *cmdline_input = NULL;
 270         const uint8_t *data;
 271         size_t size;
 272         DATA_BLOB blob;
 273         struct ndr_pull *ndr_pull;
 274         struct ndr_print *ndr_print;
 275         TALLOC_CTX *mem_ctx;
 276         int flags = 0;
 277         poptContext pc;
 278         NTSTATUS status;
 279         enum ndr_err_code ndr_err;
 280         void *st;
 281         void *v_st;
 282         const char *ctx_filename = NULL;
 283         const char *plugin = NULL;
 284         bool validate = false;
 285         bool dumpdata = false;
 286         bool assume_ndr64 = false;
 287         bool quiet = false;
 288         bool hex_input = false;
 289         bool base64_input = false;
 290         bool print_after_parse_failure = false;
 291         int opt;
 292         enum {
 293                 OPT_CONTEXT_FILE=1000,
 294                 OPT_VALIDATE,
 295                 OPT_DUMP_DATA,
 296                 OPT_LOAD_DSO,
 297                 OPT_NDR64,
 298                 OPT_QUIET,
 299                 OPT_BASE64_INPUT,
 300                 OPT_HEX_INPUT,
 301                 OPT_CMDLINE_INPUT,
 302                 OPT_PRINT_AFTER_PARSE_FAILURE,
 303         };
 304         struct poptOption long_options[] = {
 305                 POPT_AUTOHELP
 306                 {"context-file", 'c', POPT_ARG_STRING, NULL, OPT_CONTEXT_FILE, "In-filename to parse first", "CTX-FILE" },
 307                 {"validate", 0, POPT_ARG_NONE, NULL, OPT_VALIDATE, "try to validate the data", NULL },
 308                 {"dump-data", 0, POPT_ARG_NONE, NULL, OPT_DUMP_DATA, "dump the hex data", NULL },
 309                 {"load-dso", 'l', POPT_ARG_STRING, NULL, OPT_LOAD_DSO, "load from shared object file", NULL },
 310                 {"ndr64", 0, POPT_ARG_NONE, NULL, OPT_NDR64, "Assume NDR64 data", NULL },
 311                 {"quiet", 0, POPT_ARG_NONE, NULL, OPT_QUIET, "Don't actually dump anything", NULL },
 312                 {"base64-input", 0, POPT_ARG_NONE, NULL, OPT_BASE64_INPUT, "Read the input file in as a base64 string", NULL },
 313                 {"hex-input", 0, POPT_ARG_NONE, NULL, OPT_HEX_INPUT, "Read the input file in as a hex dump", NULL },
 314                 {"input", 0, POPT_ARG_STRING, NULL, OPT_CMDLINE_INPUT, "Provide the input on the command line (use with --base64-input)", "INPUT" },
 315                 {"print-after-parse-failure", 0, POPT_ARG_NONE, NULL, OPT_PRINT_AFTER_PARSE_FAILURE,
 316                  "Try to print structures that fail to parse (used to develop parsers, segfaults are likely).", NULL },
 317                 POPT_COMMON_SAMBA
 318                 POPT_COMMON_VERSION
 319                 {0}
 320         };
 321         uint32_t highest_ofs;
 322         struct dcerpc_sec_verification_trailer *sec_vt = NULL;
 323
 324         ndr_table_init();
 325
 326         /* Initialise samba stuff */
 327         smb_init_locale();
 328
 329         setlinebuf(stdout);
 330
 331         setup_logging("ndrdump", DEBUG_STDOUT);
 332
 333         pc = poptGetContext("ndrdump", argc, argv, long_options, 0);
 334
 335         poptSetOtherOptionHelp(
 336                 pc, "<pipe|uuid> <format> <in|out|struct> [<filename>]");
 337
 338         while ((opt = poptGetNextOpt(pc)) != -1) {
 339                 switch (opt) {
 340                 case OPT_CONTEXT_FILE:
 341                         ctx_filename = poptGetOptArg(pc);
 342                         break;
 343                 case OPT_VALIDATE:
 344                         validate = true;
 345                         break;
 346                 case OPT_DUMP_DATA:
 347                         dumpdata = true;
 348                         break;
 349                 case OPT_LOAD_DSO:
 350                         plugin = poptGetOptArg(pc);
 351                         break;
 352                 case OPT_NDR64:
 353                         assume_ndr64 = true;
 354                         break;
 355                 case OPT_QUIET:
 356                         quiet = true;
 357                         break;
 358                 case OPT_BASE64_INPUT:
 359                         base64_input = true;
 360                         break;
 361                 case OPT_HEX_INPUT:
 362                         hex_input = true;
 363                         break;
 364                 case OPT_CMDLINE_INPUT:
 365                         cmdline_input = poptGetOptArg(pc);
 366                         break;
 367                 case OPT_PRINT_AFTER_PARSE_FAILURE:
 368                         print_after_parse_failure = true;
 369                         break;
 370                 }
 371         }
 372
 373         pipe_name = poptGetArg(pc);
 374
 375         if (!pipe_name) {
 376                 poptPrintUsage(pc, stderr, 0);
 377                 show_pipes();
 378                 exit(1);
 379         }
 380
 381         if (plugin != NULL) {
 382                 p = load_iface_from_plugin(plugin, pipe_name);
 383         }
 384         if (!p) {
 385                 p = ndr_table_by_name(pipe_name);
 386         }
 387
 388         if (!p) {
 389                 struct GUID uuid;
 390
 391                 status = GUID_from_string(pipe_name, &uuid);
 392
 393                 if (NT_STATUS_IS_OK(status)) {
 394                         p = ndr_table_by_uuid(&uuid);
 395                 }
 396         }
 397
 398         if (!p) {
 399                 printf("Unknown pipe or UUID '%s'\n", pipe_name);
 400                 exit(1);
 401         }
 402
 403         format = poptGetArg(pc);
 404         type = poptGetArg(pc);
 405         filename = poptGetArg(pc);
 406
 407         if (!format || !type) {
 408                 poptPrintUsage(pc, stderr, 0);
 409                 show_functions(p);
 410                 exit(1);
 411         }
 412
 413         if (strcmp(type, "struct") == 0) {
 414                 flags = NDR_SCALARS|NDR_BUFFERS; /* neither NDR_IN nor NDR_OUT */
 415                 f = find_struct(p, format, &f_buffer);
 416         } else {
 417                 f = find_function(p, format);
 418                 if (strcmp(type, "in") == 0 ||
 419                     strcmp(type, "request") == 0) {
 420                         flags |= NDR_IN;
 421                 } else if (strcmp(type, "out") == 0 ||
 422                            strcmp(type, "response") == 0) {
 423                         flags |= NDR_OUT;
 424                 } else {
 425                         printf("Bad type value '%s'\n", type);
 426                         exit(1);
 427                 }
 428         }
 429
 430
 431         mem_ctx = talloc_init("ndrdump");
 432
 433         st = talloc_zero_size(mem_ctx, f->struct_size);
 434         if (!st) {
 435                 printf("Unable to allocate %d bytes for %s structure\n",
 436                        (int)f->struct_size,
 437                        f->name);
 438                 TALLOC_FREE(mem_ctx);
 439                 exit(1);
 440         }
 441
 442         v_st = talloc_zero_size(mem_ctx, f->struct_size);
 443         if (!v_st) {
 444                 printf("Unable to allocate %d bytes for %s validation "
 445                        "structure\n",
 446                        (int)f->struct_size,
 447                        f->name);
 448                 TALLOC_FREE(mem_ctx);
 449                 exit(1);
 450         }
 451
 452         if (ctx_filename) {
 453                 if (flags & NDR_IN) {
 454                         printf("Context file can only be used for \"out\" packages\n");
 455                         TALLOC_FREE(mem_ctx);
 456                         exit(1);
 457                 }
 458
 459                 data = (uint8_t *)file_load(ctx_filename, &size, 0, mem_ctx);
 460                 if (!data) {
 461                         perror(ctx_filename);
 462                         TALLOC_FREE(mem_ctx);
 463                         exit(1);
 464                 }
 465
 466                 blob = data_blob_const(data, size);
 467
 468                 ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 469                 if (ndr_pull == NULL) {
 470                         perror("ndr_pull_init_blob");
 471                         TALLOC_FREE(mem_ctx);
 472                         exit(1);
 473                 }
 474                 ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 475                 if (assume_ndr64) {
 476                         ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 477                 }
 478
 479                 ndr_err = f->ndr_pull(ndr_pull, NDR_IN, st);
 480
 481                 if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 482                         highest_ofs = ndr_pull->offset;
 483                 } else {
 484                         highest_ofs = ndr_pull->relative_highest_offset;
 485                 }
 486
 487                 if (highest_ofs != ndr_pull->data_size) {
 488                         printf("WARNING! %d unread bytes while parsing context file\n", ndr_pull->data_size - highest_ofs);
 489                 }
 490
 491                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 492                         printf("pull for context file returned %s\n",
 493                                ndr_map_error2string(ndr_err));
 494                         TALLOC_FREE(mem_ctx);
 495                         exit(2);
 496                 }
 497                 memcpy(v_st, st, f->struct_size);
 498         }
 499
 500         if (filename && cmdline_input) {
 501                 printf("cannot combine --input with a filename\n");
 502                 TALLOC_FREE(mem_ctx);
 503                 exit(1);
 504         } else if (cmdline_input) {
 505                 data = (const uint8_t *)cmdline_input;
 506                 size = strlen(cmdline_input);
 507         } else if (filename) {
 508                 data = (uint8_t *)file_load(filename, &size, 0, mem_ctx);
 509         } else {
 510                 data = (uint8_t *)stdin_load(mem_ctx, &size);
 511         }
 512
 513         if (!data) {
 514                 if (filename)
 515                         perror(filename);
 516                 else
 517                         perror("stdin");
 518                 exit(1);
 519         }
 520
 521         if (hex_input && base64_input) {
 522                 printf("cannot combine --hex-input with --base64-input\n");
 523                 TALLOC_FREE(mem_ctx);
 524                 exit(1);
 525
 526         } else if (hex_input) {
 527                 blob = hexdump_to_data_blob(mem_ctx, (const char *)data, size);
 528         } else if (base64_input) {
 529                 /* Use talloc_strndup() to ensure null termination */
 530                 blob = base64_decode_data_blob(talloc_strndup(mem_ctx,
 531                                                               (const char *)data, size));
 532                 /* base64_decode_data_blob() allocates on NULL */
 533                 talloc_steal(mem_ctx, blob.data);
 534         } else {
 535                 blob = data_blob_const(data, size);
 536         }
 537
 538         if (data != NULL && blob.data == NULL) {
 539                 printf("failed to decode input data\n");
 540                 TALLOC_FREE(mem_ctx);
 541                 exit(1);
 542         }
 543
 544         ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 545         if (ndr_pull == NULL) {
 546                 perror("ndr_pull_init_blob");
 547                 TALLOC_FREE(mem_ctx);
 548                 exit(1);
 549         }
 550         ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 551         if (assume_ndr64) {
 552                 ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 553         }
 554
 555         ndr_print = talloc_zero(mem_ctx, struct ndr_print);
 556         if (quiet) {
 557                 ndr_print->print = ndr_print_dummy;
 558         } else {
 559                 ndr_print->print = ndr_print_printf_helper;
 560         }
 561         ndr_print->depth = 1;
 562
 563         ndr_err = ndr_pop_dcerpc_sec_verification_trailer(ndr_pull, mem_ctx, &sec_vt);
 564         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 565                 printf("ndr_pop_dcerpc_sec_verification_trailer returned %s\n",
 566                        ndr_map_error2string(ndr_err));
 567         }
 568
 569         if (sec_vt != NULL && sec_vt->count.count > 0) {
 570                 printf("SEC_VT: consumed %d bytes\n",
 571                        (int)(blob.length - ndr_pull->data_size));
 572                 if (dumpdata) {
 573                         ndrdump_data(blob.data + ndr_pull->data_size,
 574                                      blob.length - ndr_pull->data_size,
 575                                      dumpdata);
 576                 }
 577                 ndr_print_dcerpc_sec_verification_trailer(ndr_print, "SEC_VT", sec_vt);
 578         }
 579         TALLOC_FREE(sec_vt);
 580
 581         if (flags & NDR_OUT) {
 582                 status = ndrdump_pull_and_print_pipes(format,
 583                                                       ndr_pull,
 584                                                       ndr_print,
 585                                                       &f->out_pipes);
 586                 if (!NT_STATUS_IS_OK(status)) {
 587                         printf("pull and dump of OUT pipes FAILED: %s\n",
 588                                nt_errstr(status));
 589                         TALLOC_FREE(mem_ctx);
 590                         exit(2);
 591                 }
 592         }
 593
 594         ndr_err = f->ndr_pull(ndr_pull, flags, st);
 595         printf("pull returned %s\n",
 596                ndr_map_error2string(ndr_err));
 597
 598         if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 599                 highest_ofs = ndr_pull->offset;
 600         } else {
 601                 highest_ofs = ndr_pull->relative_highest_offset;
 602         }
 603
 604         if (dumpdata) {
 605                 printf("%d bytes consumed\n", highest_ofs);
 606                 ndrdump_data(blob.data, blob.length, dumpdata);
 607         }
 608
 609         if (!print_after_parse_failure && !NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 610                 TALLOC_FREE(mem_ctx);
 611                 exit(2);
 612         }
 613
 614         if (highest_ofs != ndr_pull->data_size) {
 615                 printf("WARNING! %d unread bytes\n", ndr_pull->data_size - highest_ofs);
 616                 ndrdump_data(ndr_pull->data+highest_ofs,
 617                              ndr_pull->data_size - highest_ofs,
 618                              dumpdata);
 619         }
 620
 621         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 622                 printf("WARNING: pull of %s was incomplete, "
 623                        "therefore the parse below may SEGFAULT\n",
 624                         f->name);
 625         }
 626
 627         f->ndr_print(ndr_print, f->name, flags, st);
 628
 629         if (flags & NDR_IN) {
 630                 status = ndrdump_pull_and_print_pipes(format,
 631                                                       ndr_pull,
 632                                                       ndr_print,
 633                                                       &f->in_pipes);
 634                 if (!NT_STATUS_IS_OK(status)) {
 635                         printf("pull and dump of IN pipes FAILED: %s\n",
 636                                nt_errstr(status));
 637                         exit(1);
 638                 }
 639         }
 640
 641         /* Do not proceed to validate if we got an error */
 642         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 643                 printf("dump of failed-to-parse %s complete\n",
 644                        f->name);
 645                 TALLOC_FREE(mem_ctx);
 646                 exit(2);
 647         }
 648
 649         if (validate) {
 650                 DATA_BLOB v_blob;
 651                 struct ndr_push *ndr_v_push;
 652                 struct ndr_pull *ndr_v_pull;
 653                 struct ndr_print *ndr_v_print;
 654                 uint32_t highest_v_ofs;
 655                 uint32_t i;
 656                 uint8_t byte_a, byte_b;
 657                 bool differ;
 658
 659                 ndr_v_push = ndr_push_init_ctx(mem_ctx);
 660                 if (ndr_v_push == NULL) {
 661                         printf("No memory\n");
 662                         exit(1);
 663                 }
 664
 665                 if (assume_ndr64) {
 666                         ndr_v_push->flags |= LIBNDR_FLAG_NDR64;
 667                 }
 668
 669                 ndr_err = f->ndr_push(ndr_v_push, flags, st);
 670                 printf("push returned %s\n",
 671                        ndr_map_error2string(ndr_err));
 672                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 673                         printf("validate push FAILED\n");
 674                         TALLOC_FREE(mem_ctx);
 675                         exit(1);
 676                 }
 677
 678                 v_blob = ndr_push_blob(ndr_v_push);
 679
 680                 if (dumpdata) {
 681                         printf("%ld bytes generated (validate)\n", (long)v_blob.length);
 682                         ndrdump_data(v_blob.data, v_blob.length, dumpdata);
 683                 }
 684
 685                 ndr_v_pull = ndr_pull_init_blob(&v_blob, mem_ctx);
 686                 if (ndr_v_pull == NULL) {
 687                         perror("ndr_pull_init_blob");
 688                         TALLOC_FREE(mem_ctx);
 689                         exit(1);
 690                 }
 691                 ndr_v_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 692
 693                 ndr_err = f->ndr_pull(ndr_v_pull, flags, v_st);
 694                 printf("pull returned %s\n",
 695                        ndr_map_error2string(ndr_err));
 696                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 697                         printf("validate pull FAILED\n");
 698                         TALLOC_FREE(mem_ctx);
 699                         exit(1);
 700                 }
 701
 702                 if (ndr_v_pull->offset > ndr_v_pull->relative_highest_offset) {
 703                         highest_v_ofs = ndr_v_pull->offset;
 704                 } else {
 705                         highest_v_ofs = ndr_v_pull->relative_highest_offset;
 706                 }
 707
 708                 if (highest_v_ofs != ndr_v_pull->data_size) {
 709                         printf("WARNING! %d unread bytes in validation\n",
 710                                ndr_v_pull->data_size - highest_v_ofs);
 711                         ndrdump_data(ndr_v_pull->data + highest_v_ofs,
 712                                      ndr_v_pull->data_size - highest_v_ofs,
 713                                      dumpdata);
 714                 }
 715
 716                 ndr_v_print = talloc_zero(mem_ctx, struct ndr_print);
 717                 ndr_v_print->print = ndr_print_debug_helper;
 718                 ndr_v_print->depth = 1;
 719                 f->ndr_print(ndr_v_print,
 720                              format,
 721                              flags, v_st);
 722
 723                 if (blob.length != v_blob.length) {
 724                         printf("WARNING! orig bytes:%llu validated pushed bytes:%llu\n",
 725                                (unsigned long long)blob.length, (unsigned long long)v_blob.length);
 726                 }
 727
 728                 if (highest_ofs != highest_v_ofs) {
 729                         printf("WARNING! orig pulled bytes:%llu validated pulled bytes:%llu\n",
 730                                (unsigned long long)highest_ofs, (unsigned long long)highest_v_ofs);
 731                 }
 732
 733                 differ = false;
 734                 byte_a = 0x00;
 735                 byte_b = 0x00;
 736                 for (i=0; i < blob.length; i++) {
 737                         byte_a = blob.data[i];
 738
 739                         if (i == v_blob.length) {
 740                                 byte_b = 0x00;
 741                                 differ = true;
 742                                 break;
 743                         }
 744
 745                         byte_b = v_blob.data[i];
 746
 747                         if (byte_a != byte_b) {
 748                                 differ = true;
 749                                 break;
 750                         }
 751                 }
 752                 if (differ) {
 753                         printf("WARNING! orig and validated differ at byte 0x%02X (%u)\n", i, i);
 754                         printf("WARNING! orig byte[0x%02X] = 0x%02X validated byte[0x%02X] = 0x%02X\n",
 755                                 i, byte_a, i, byte_b);
 756                 }
 757         }
 758
 759         printf("dump OK\n");
 760         TALLOC_FREE(mem_ctx);
 761
 762         poptFreeContext(pc);
 763
 764         return 0;
 765 }