2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 2003
5 Copyright (C) Jelmer Vernooij 2006
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.
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.
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/>.
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 "lib/cmdline/popt_common.h"
27 #include "param/param.h"
29 static const struct ndr_interface_call *find_function(
30 const struct ndr_interface_table *p,
34 if (isdigit(function[0])) {
35 i = strtol(function, NULL, 0);
38 for (i=0;i<p->num_calls;i++) {
39 if (strcmp(p->calls[i].name, function) == 0) {
43 if (i == p->num_calls) {
44 printf("Function '%s' not found\n", function);
50 _NORETURN_ static void show_pipes(void)
52 const struct ndr_interface_list *l;
53 printf("\nYou must specify a pipe\n");
54 printf("known pipes are:\n");
55 for (l=ndr_table_list();l;l=l->next) {
56 if(l->table->helpstring) {
57 printf("\t%s - %s\n", l->table->name, l->table->helpstring);
59 printf("\t%s\n", l->table->name);
65 _NORETURN_ static void show_functions(const struct ndr_interface_table *p)
68 printf("\nYou must specify a function\n");
69 printf("known functions on '%s' are:\n", p->name);
70 for (i=0;i<p->num_calls;i++) {
71 printf("\t0x%02x (%2d) %s\n", i, i, p->calls[i].name);
76 static char *stdin_load(TALLOC_CTX *mem_ctx, size_t *size)
78 int num_read, total_len = 0;
82 while((num_read = read(STDIN_FILENO, buf, 255)) > 0) {
85 result = talloc_realloc(
86 mem_ctx, result, char, total_len + num_read);
88 result = talloc_array(mem_ctx, char, num_read);
91 memcpy(result + total_len, buf, num_read);
93 total_len += num_read;
102 static const struct ndr_interface_table *load_iface_from_plugin(const char *plugin, const char *pipe_name)
104 const struct ndr_interface_table *p;
108 handle = dlopen(plugin, RTLD_NOW);
109 if (handle == NULL) {
110 printf("%s: Unable to open: %s\n", plugin, dlerror());
114 symbol = talloc_asprintf(NULL, "ndr_table_%s", pipe_name);
115 p = (const struct ndr_interface_table *)dlsym(handle, symbol);
118 printf("%s: Unable to find DCE/RPC interface table for '%s': %s\n", plugin, pipe_name, dlerror());
128 static void ndrdump_data(uint8_t *d, uint32_t l, bool force)
130 dump_data_file(d, l, !force, stdout);
133 static NTSTATUS ndrdump_pull_and_print_pipes(const char *function,
134 struct ndr_pull *ndr_pull,
135 struct ndr_print *ndr_print,
136 const struct ndr_interface_call_pipes *pipes)
139 enum ndr_err_code ndr_err;
142 for (i=0; i < pipes->num_pipes; i++) {
149 c = talloc_zero_size(ndr_pull, pipes->pipes[i].chunk_struct_size);
150 talloc_set_name(c, "struct %s", pipes->pipes[i].name);
152 * Note: the first struct member is always
155 count = (uint32_t *)c;
157 n = talloc_asprintf(c, "%s: %s[%llu]",
158 function, pipes->pipes[i].name,
159 (unsigned long long)idx);
161 ndr_err = pipes->pipes[i].ndr_pull(ndr_pull, NDR_SCALARS, c);
162 status = ndr_map_error2ntstatus(ndr_err);
164 printf("pull returned %s\n", nt_errstr(status));
165 if (!NT_STATUS_IS_OK(status)) {
168 pipes->pipes[i].ndr_print(ndr_print, n, c);
180 int main(int argc, const char *argv[])
182 const struct ndr_interface_table *p = NULL;
183 const struct ndr_interface_call *f;
184 const char *pipe_name, *function, *inout, *filename;
188 struct ndr_pull *ndr_pull;
189 struct ndr_print *ndr_print;
194 enum ndr_err_code ndr_err;
197 const char *ctx_filename = NULL;
198 const char *plugin = NULL;
199 bool validate = false;
200 bool dumpdata = false;
201 bool assume_ndr64 = false;
203 enum {OPT_CONTEXT_FILE=1000, OPT_VALIDATE, OPT_DUMP_DATA, OPT_LOAD_DSO, OPT_NDR64};
204 struct poptOption long_options[] = {
206 {"context-file", 'c', POPT_ARG_STRING, NULL, OPT_CONTEXT_FILE, "In-filename to parse first", "CTX-FILE" },
207 {"validate", 0, POPT_ARG_NONE, NULL, OPT_VALIDATE, "try to validate the data", NULL },
208 {"dump-data", 0, POPT_ARG_NONE, NULL, OPT_DUMP_DATA, "dump the hex data", NULL },
209 {"load-dso", 'l', POPT_ARG_STRING, NULL, OPT_LOAD_DSO, "load from shared object file", NULL },
210 {"ndr64", 0, POPT_ARG_NONE, NULL, OPT_NDR64, "Assume NDR64 data", NULL },
215 const struct ndr_interface_call_pipes *in_pipes = NULL;
216 const struct ndr_interface_call_pipes *out_pipes = NULL;
217 uint32_t highest_ofs;
221 /* Initialise samba stuff */
226 setup_logging("ndrdump", DEBUG_STDOUT);
228 pc = poptGetContext("ndrdump", argc, argv, long_options, 0);
230 poptSetOtherOptionHelp(
231 pc, "<pipe|uuid> <function> <inout> [<filename>]");
233 while ((opt = poptGetNextOpt(pc)) != -1) {
235 case OPT_CONTEXT_FILE:
236 ctx_filename = poptGetOptArg(pc);
245 plugin = poptGetOptArg(pc);
253 pipe_name = poptGetArg(pc);
256 poptPrintUsage(pc, stderr, 0);
261 if (plugin != NULL) {
262 p = load_iface_from_plugin(plugin, pipe_name);
265 p = ndr_table_by_name(pipe_name);
271 status = GUID_from_string(pipe_name, &uuid);
273 if (NT_STATUS_IS_OK(status)) {
274 p = ndr_table_by_uuid(&uuid);
279 printf("Unknown pipe or UUID '%s'\n", pipe_name);
283 function = poptGetArg(pc);
284 inout = poptGetArg(pc);
285 filename = poptGetArg(pc);
287 if (!function || !inout) {
288 poptPrintUsage(pc, stderr, 0);
293 f = find_function(p, function);
295 if (strcmp(inout, "in") == 0 ||
296 strcmp(inout, "request") == 0) {
298 in_pipes = &f->in_pipes;
299 } else if (strcmp(inout, "out") == 0 ||
300 strcmp(inout, "response") == 0) {
302 out_pipes = &f->out_pipes;
304 printf("Bad inout value '%s'\n", inout);
308 mem_ctx = talloc_init("ndrdump");
310 st = talloc_zero_size(mem_ctx, f->struct_size);
312 printf("Unable to allocate %d bytes\n", (int)f->struct_size);
316 v_st = talloc_zero_size(mem_ctx, f->struct_size);
318 printf("Unable to allocate %d bytes\n", (int)f->struct_size);
323 if (flags == NDR_IN) {
324 printf("Context file can only be used for \"out\" packages\n");
328 data = (uint8_t *)file_load(ctx_filename, &size, 0, mem_ctx);
330 perror(ctx_filename);
337 ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
338 if (ndr_pull == NULL) {
339 perror("ndr_pull_init_blob");
342 ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
344 ndr_pull->flags |= LIBNDR_FLAG_NDR64;
347 ndr_err = f->ndr_pull(ndr_pull, NDR_IN, st);
349 if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
350 highest_ofs = ndr_pull->offset;
352 highest_ofs = ndr_pull->relative_highest_offset;
355 if (highest_ofs != ndr_pull->data_size) {
356 printf("WARNING! %d unread bytes while parsing context file\n", ndr_pull->data_size - highest_ofs);
359 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
360 status = ndr_map_error2ntstatus(ndr_err);
361 printf("pull for context file returned %s\n", nt_errstr(status));
364 memcpy(v_st, st, f->struct_size);
368 data = (uint8_t *)file_load(filename, &size, 0, mem_ctx);
370 data = (uint8_t *)stdin_load(mem_ctx, &size);
383 ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
384 if (ndr_pull == NULL) {
385 perror("ndr_pull_init_blob");
388 ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
390 ndr_pull->flags |= LIBNDR_FLAG_NDR64;
393 ndr_print = talloc_zero(mem_ctx, struct ndr_print);
394 ndr_print->print = ndr_print_printf_helper;
395 ndr_print->depth = 1;
398 status = ndrdump_pull_and_print_pipes(function, ndr_pull, ndr_print, out_pipes);
399 if (!NT_STATUS_IS_OK(status)) {
400 printf("dump FAILED\n");
405 ndr_err = f->ndr_pull(ndr_pull, flags, st);
406 status = ndr_map_error2ntstatus(ndr_err);
408 printf("pull returned %s\n", nt_errstr(status));
410 if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
411 highest_ofs = ndr_pull->offset;
413 highest_ofs = ndr_pull->relative_highest_offset;
416 if (highest_ofs != ndr_pull->data_size) {
417 printf("WARNING! %d unread bytes\n", ndr_pull->data_size - highest_ofs);
418 ndrdump_data(ndr_pull->data+highest_ofs,
419 ndr_pull->data_size - highest_ofs,
424 printf("%d bytes consumed\n", ndr_pull->offset);
425 ndrdump_data(blob.data, blob.length, dumpdata);
428 f->ndr_print(ndr_print, function, flags, st);
430 if (!NT_STATUS_IS_OK(status)) {
431 printf("dump FAILED\n");
436 status = ndrdump_pull_and_print_pipes(function, ndr_pull, ndr_print, in_pipes);
437 if (!NT_STATUS_IS_OK(status)) {
438 printf("dump FAILED\n");
445 struct ndr_push *ndr_v_push;
446 struct ndr_pull *ndr_v_pull;
447 struct ndr_print *ndr_v_print;
449 uint8_t byte_a, byte_b;
452 ndr_v_push = ndr_push_init_ctx(mem_ctx);
454 ndr_err = f->ndr_push(ndr_v_push, flags, st);
455 status = ndr_map_error2ntstatus(ndr_err);
456 printf("push returned %s\n", nt_errstr(status));
457 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
458 printf("validate push FAILED\n");
462 v_blob = ndr_push_blob(ndr_v_push);
465 printf("%ld bytes generated (validate)\n", (long)v_blob.length);
466 ndrdump_data(v_blob.data, v_blob.length, dumpdata);
469 ndr_v_pull = ndr_pull_init_blob(&v_blob, mem_ctx);
470 if (ndr_v_pull == NULL) {
471 perror("ndr_pull_init_blob");
474 ndr_v_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
476 ndr_err = f->ndr_pull(ndr_v_pull, flags, v_st);
477 status = ndr_map_error2ntstatus(ndr_err);
478 printf("pull returned %s\n", nt_errstr(status));
479 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
480 printf("validate pull FAILED\n");
485 if (ndr_v_pull->offset != ndr_v_pull->data_size) {
486 printf("WARNING! %d unread bytes in validation\n", ndr_v_pull->data_size - ndr_v_pull->offset);
487 ndrdump_data(ndr_v_pull->data+ndr_v_pull->offset,
488 ndr_v_pull->data_size - ndr_v_pull->offset,
492 ndr_v_print = talloc_zero(mem_ctx, struct ndr_print);
493 ndr_v_print->print = ndr_print_debug_helper;
494 ndr_v_print->depth = 1;
495 f->ndr_print(ndr_v_print, function, flags, v_st);
497 if (blob.length != v_blob.length) {
498 printf("WARNING! orig bytes:%llu validated pushed bytes:%llu\n",
499 (unsigned long long)blob.length, (unsigned long long)v_blob.length);
502 if (ndr_pull->offset != ndr_v_pull->offset) {
503 printf("WARNING! orig pulled bytes:%llu validated pulled bytes:%llu\n",
504 (unsigned long long)ndr_pull->offset, (unsigned long long)ndr_v_pull->offset);
510 for (i=0; i < blob.length; i++) {
511 byte_a = blob.data[i];
513 if (i == v_blob.length) {
519 byte_b = v_blob.data[i];
521 if (byte_a != byte_b) {
527 printf("WARNING! orig and validated differ at byte 0x%02X (%u)\n", i, i);
528 printf("WARNING! orig byte[0x%02X] = 0x%02X validated byte[0x%02X] = 0x%02X\n",
529 i, byte_a, i, byte_b);
535 talloc_free(mem_ctx);