osmocom
/
wireshark
11
0
Fork 1
Code Issues Pull Requests Projects Releases Wiki Activity
wireshark/epan/tvbtest.c

524 lines
15 KiB
C
Raw Blame History

/* tvbtest.c
* Standalone program to test functionality of tvbuffs.
*
* tvbtest : tvbtest.o tvbuff.o except.o
*
* Copyright (c) 2000 by Gilbert Ramirez <gram@alumni.rice.edu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "tvbuff.h"
#include "exceptions.h"
#include "wsutil/pint.h"
gboolean failed = FALSE;
/* Tests a tvbuff against the expected pattern/length.
* Returns TRUE if all tests succeeed, FALSE if any test fails */
gboolean
test(tvbuff_t *tvb, const gchar* name,
guint8* expected_data, guint expected_length, guint expected_reported_length)
{
guint length;
guint reported_length;
guint8 *ptr;
volatile gboolean ex_thrown;
volatile guint32 val32;
guint32 expected32;
guint incr, i;
length = tvb_captured_length(tvb);
if (length != expected_length) {
printf("01: Failed TVB=%s Length of tvb=%u while expected length=%u\n",
name, length, expected_length);
failed = TRUE;
return FALSE;
}
reported_length = tvb_reported_length(tvb);
if (reported_length != expected_reported_length) {
printf("01: Failed TVB=%s Reported length of tvb=%u while expected reported length=%u\n",
name, reported_length, expected_reported_length);
failed = TRUE;
return FALSE;
}
/* Test boundary case. A BoundsError exception should be thrown. */
ex_thrown = FALSE;
TRY {
tvb_get_ptr(tvb, 0, length + 1);
}
CATCH(BoundsError) {
ex_thrown = TRUE;
}
CATCH(FragmentBoundsError) {
printf("02: Caught wrong exception: FragmentBoundsError\n");
}
CATCH(ReportedBoundsError) {
printf("02: Caught wrong exception: ReportedBoundsError\n");
}
CATCH_ALL {
printf("02: Caught wrong exception: %lu\n", exc->except_id.except_code);
}
ENDTRY;
if (!ex_thrown) {
printf("02: Failed TVB=%s No BoundsError when retrieving %u bytes\n",
name, length + 1);
failed = TRUE;
return FALSE;
}
/* Test boundary case with reported_length+1. A ReportedBoundsError
exception should be thrown. */
ex_thrown = FALSE;
TRY {
tvb_get_ptr(tvb, 0, reported_length + 1);
}
CATCH(BoundsError) {
printf("03: Caught wrong exception: BoundsError\n");
}
CATCH(FragmentBoundsError) {
printf("03: Caught wrong exception: FragmentBoundsError\n");
}
CATCH(ReportedBoundsError) {
ex_thrown = TRUE;
}
CATCH_ALL {
printf("02: Caught wrong exception: %lu\n", exc->except_id.except_code);
}
ENDTRY;
if (!ex_thrown) {
printf("03: Failed TVB=%s No ReportedBoundsError when retrieving %u bytes\n",
name, reported_length + 1);
failed = TRUE;
return FALSE;
}
/* Test boundary case. A BoundsError exception should be thrown. */
ex_thrown = FALSE;
TRY {
tvb_get_ptr(tvb, -1, 2);
}
CATCH(BoundsError) {
ex_thrown = TRUE;
}
CATCH(FragmentBoundsError) {
printf("04: Caught wrong exception: FragmentBoundsError\n");
}
CATCH(ReportedBoundsError) {
printf("04: Caught wrong exception: ReportedBoundsError\n");
}
CATCH_ALL {
printf("02: Caught wrong exception: %lu\n", exc->except_id.except_code);
}
ENDTRY;
if (!ex_thrown) {
printf("04: Failed TVB=%s No BoundsError when retrieving 2 bytes from"
" offset -1\n", name);
failed = TRUE;
return FALSE;
}
/* Test boundary case. A BoundsError exception should not be thrown. */
ex_thrown = FALSE;
TRY {
tvb_get_ptr(tvb, 0, 1);
}
CATCH(BoundsError) {
ex_thrown = TRUE;
}
CATCH(FragmentBoundsError) {
printf("05: Caught wrong exception: FragmentBoundsError\n");
}
CATCH(ReportedBoundsError) {
printf("05: Caught wrong exception: ReportedBoundsError\n");
}
CATCH_ALL {
printf("02: Caught wrong exception: %lu\n", exc->except_id.except_code);
}
ENDTRY;
if (ex_thrown) {
printf("05: Failed TVB=%s BoundsError when retrieving 1 bytes from"
" offset 0\n", name);
failed = TRUE;
return FALSE;
}
/* Test boundary case. A BoundsError exception should not be thrown. */
ex_thrown = FALSE;
TRY {
tvb_get_ptr(tvb, -1, 1);
}
CATCH(BoundsError) {
ex_thrown = TRUE;
}
CATCH(FragmentBoundsError) {
printf("06: Caught wrong exception: FragmentBoundsError\n");
}
CATCH(ReportedBoundsError) {
printf("06: Caught wrong exception: ReportedBoundsError\n");
}
CATCH_ALL {
printf("02: Caught wrong exception: %lu\n", exc->except_id.except_code);
}
ENDTRY;
if (ex_thrown) {
printf("06: Failed TVB=%s BoundsError when retrieving 1 bytes from"
" offset -1\n", name);
failed = TRUE;
return FALSE;
}
/* Check data at boundary. An exception should not be thrown. */
if (length >= 4) {
ex_thrown = FALSE;
TRY {
val32 = tvb_get_ntohl(tvb, 0);
}
CATCH_ALL {
ex_thrown = TRUE;
}
ENDTRY;
if (ex_thrown) {
printf("07: Failed TVB=%s Exception when retrieving "
"guint32 from offset 0\n", name);
failed = TRUE;
return FALSE;
}
expected32 = pntoh32(expected_data);
if (val32 != expected32) {
printf("08: Failed TVB=%s guint32 @ 0 %u != expected %u\n",
name, val32, expected32);
failed = TRUE;
return FALSE;
}
}
/* Check data at boundary. An exception should not be thrown. */
if (length >= 4) {
ex_thrown = FALSE;
TRY {
val32 = tvb_get_ntohl(tvb, -4);
}
CATCH_ALL {
ex_thrown = TRUE;
}
ENDTRY;
if (ex_thrown) {
printf("09: Failed TVB=%s Exception when retrieving "
"guint32 from offset 0\n", name);
failed = TRUE;
return FALSE;
}
expected32 = pntoh32(&expected_data[length-4]);
if (val32 != expected32) {
printf("10: Failed TVB=%s guint32 @ -4 %u != expected %u\n",
name, val32, expected32);
failed = TRUE;
return FALSE;
}
}
/* Sweep across data in various sized increments checking
* tvb_memdup() */
for (incr = 1; incr < length; incr++) {
for (i = 0; i < length - incr; i += incr) {
ptr = (guint8*)tvb_memdup(NULL, tvb, i, incr);
if (memcmp(ptr, &expected_data[i], incr) != 0) {
printf("11: Failed TVB=%s Offset=%u Length=%u "
"Bad memdup\n",
name, i, incr);
failed = TRUE;
wmem_free(NULL, ptr);
return FALSE;
}
wmem_free(NULL, ptr);
}
}
/* One big memdup */
ptr = (guint8*)tvb_memdup(NULL, tvb, 0, -1);
if (memcmp(ptr, expected_data, length) != 0) {
printf("12: Failed TVB=%s Offset=0 Length=-1 "
"Bad memdup\n", name);
failed = TRUE;
wmem_free(NULL, ptr);
return FALSE;
}
wmem_free(NULL, ptr);
printf("Passed TVB=%s\n", name);
return TRUE;
}
gboolean
skip(tvbuff_t *tvb _U_, gchar* name,
guint8* expected_data _U_, guint expected_length _U_)
{
printf("Skipping TVB=%s\n", name);
return FALSE;
}
void
run_tests(void)
{
int i, j;
tvbuff_t *tvb_parent;
tvbuff_t *tvb_small[3];
tvbuff_t *tvb_large[3];
tvbuff_t *tvb_subset[6];
guint8 *small[3];
guint small_length[3];
guint small_reported_length[3];
guint8 *large[3];
guint large_length[3];
guint large_reported_length[3];
guint8 *subset[6];
guint subset_length[6];
guint subset_reported_length[6];
guint8 temp;
guint8 *comp[6];
tvbuff_t *tvb_comp[6];
guint comp_length[6];
guint comp_reported_length[6];
int len;
tvb_parent = tvb_new_real_data("", 0, 0);
for (i = 0; i < 3; i++) {
small[i] = g_new(guint8, 16);
temp = 16 * i;
for (j = 0; j < 16; j++) {
small[i][j] = temp + j;
}
small_length[i] = 16;
small_reported_length[i] = 17;
tvb_small[i] = tvb_new_child_real_data(tvb_parent, small[i], 16, 17);
tvb_set_free_cb(tvb_small[i], g_free);
}
for (i = 0; i < 3; i++) {
large[i] = g_new(guint8, 19);
temp = 19 * i;
for (j = 0; j < 19; j++) {
large[i][j] = temp + j;
}
large_length[i] = 19;
large_reported_length[i] = 20;
tvb_large[i] = tvb_new_child_real_data(tvb_parent, large[i], 19, 20);
tvb_set_free_cb(tvb_large[i], g_free);
}
/* Test the TVBUFF_REAL_DATA objects. */
test(tvb_small[0], "Small 0", small[0], small_length[0], small_reported_length[0]);
test(tvb_small[1], "Small 1", small[1], small_length[1], small_reported_length[1]);
test(tvb_small[2], "Small 2", small[2], small_length[2], small_reported_length[2]);
test(tvb_large[0], "Large 0", large[0], large_length[0], large_reported_length[0]);
test(tvb_large[1], "Large 1", large[1], large_length[1], large_reported_length[1]);
test(tvb_large[2], "Large 2", large[2], large_length[2], large_reported_length[2]);
subset_length[0] = 8;
subset_reported_length[0] = 9;
tvb_subset[0] = tvb_new_subset_length_caplen(tvb_small[0], 0, 8, 9);
subset[0] = &small[0][0];
subset_length[1] = 10;
subset_reported_length[1] = 11;
tvb_subset[1] = tvb_new_subset_length_caplen(tvb_large[0], -10, 10, 11);
subset[1] = &large[0][9];
subset_length[2] = 16;
subset_reported_length[2] = 17;
tvb_subset[2] = tvb_new_subset_length_caplen(tvb_small[1], -16, -1, 17);
subset[2] = &small[1][0];
subset_length[3] = 3;
subset_reported_length[3] = 4;
tvb_subset[3] = tvb_new_subset_length_caplen(tvb_subset[0], 0, 3, 4);
subset[3] = &small[0][0];
subset_length[4] = 5;
subset_reported_length[4] = 6;
tvb_subset[4] = tvb_new_subset_length_caplen(tvb_subset[1], -5, 5, 6);
subset[4] = &large[0][14];
subset_length[5] = 8;
subset_reported_length[5] = 9;
tvb_subset[5] = tvb_new_subset_length_caplen(tvb_subset[2], 4, 8, 9);
subset[5] = &small[1][4];
/* Test the TVBUFF_SUBSET objects. */
test(tvb_subset[0], "Subset 0", subset[0], subset_length[0], subset_reported_length[0]);
test(tvb_subset[1], "Subset 1", subset[1], subset_length[1], subset_reported_length[1]);
test(tvb_subset[2], "Subset 2", subset[2], subset_length[2], subset_reported_length[2]);
test(tvb_subset[3], "Subset 3", subset[3], subset_length[3], subset_reported_length[3]);
test(tvb_subset[4], "Subset 4", subset[4], subset_length[4], subset_reported_length[4]);
test(tvb_subset[5], "Subset 5", subset[5], subset_length[5], subset_reported_length[5]);
/* One Real */
printf("Making Composite 0\n");
tvb_comp[0] = tvb_new_composite();
comp_length[0] = small_length[0];
comp_reported_length[0] = small_reported_length[0];
comp[0] = small[0];
tvb_composite_append(tvb_comp[0], tvb_small[0]);
tvb_composite_finalize(tvb_comp[0]);
/* Two Reals */
printf("Making Composite 1\n");
tvb_comp[1] = tvb_new_composite();
comp_length[1] = small_length[0] + small_length[1];
comp_reported_length[1] = small_reported_length[0] + small_reported_length[1];
comp[1] = (guint8*)g_malloc(comp_length[1]);
memcpy(comp[1], small[0], small_length[0]);
memcpy(&comp[1][small_length[0]], small[1], small_length[1]);
tvb_composite_append(tvb_comp[1], tvb_small[0]);
tvb_composite_append(tvb_comp[1], tvb_small[1]);
tvb_composite_finalize(tvb_comp[1]);
/* One subset */
printf("Making Composite 2\n");
tvb_comp[2] = tvb_new_composite();
comp_length[2] = subset_length[1];
comp_reported_length[2] = subset_reported_length[1];
comp[2] = subset[1];
tvb_composite_append(tvb_comp[2], tvb_subset[1]);
tvb_composite_finalize(tvb_comp[2]);
/* Two subsets */
printf("Making Composite 3\n");
tvb_comp[3] = tvb_new_composite();
comp_length[3] = subset_length[4] + subset_length[5];
comp_reported_length[3] = subset_reported_length[4] + subset_reported_length[5];
comp[3] = (guint8*)g_malloc(comp_length[3]);
memcpy(comp[3], subset[4], subset_length[4]);
memcpy(&comp[3][subset_length[4]], subset[5], subset_length[5]);
tvb_composite_append(tvb_comp[3], tvb_subset[4]);
tvb_composite_append(tvb_comp[3], tvb_subset[5]);
tvb_composite_finalize(tvb_comp[3]);
/* One real, one subset */
printf("Making Composite 4\n");
tvb_comp[4] = tvb_new_composite();
comp_length[4] = small_length[0] + subset_length[1];
comp_reported_length[4] = small_reported_length[0] + subset_reported_length[1];
comp[4] = (guint8*)g_malloc(comp_length[4]);
memcpy(&comp[4][0], small[0], small_length[0]);
memcpy(&comp[4][small_length[0]], subset[1], subset_length[1]);
tvb_composite_append(tvb_comp[4], tvb_small[0]);
tvb_composite_append(tvb_comp[4], tvb_subset[1]);
tvb_composite_finalize(tvb_comp[4]);
/* 4 composites */
printf("Making Composite 5\n");
tvb_comp[5] = tvb_new_composite();
comp_length[5] = comp_length[0] +
comp_length[1] +
comp_length[2] +
comp_length[3];
comp_reported_length[5] = comp_reported_length[0] +
comp_reported_length[1] +
comp_reported_length[2] +
comp_reported_length[3];
comp[5] = (guint8*)g_malloc(comp_length[5]);
len = 0;
memcpy(&comp[5][len], comp[0], comp_length[0]);
len += comp_length[0];
memcpy(&comp[5][len], comp[1], comp_length[1]);
len += comp_length[1];
memcpy(&comp[5][len], comp[2], comp_length[2]);
len += comp_length[2];
memcpy(&comp[5][len], comp[3], comp_length[3]);
tvb_composite_append(tvb_comp[5], tvb_comp[0]);
tvb_composite_append(tvb_comp[5], tvb_comp[1]);
tvb_composite_append(tvb_comp[5], tvb_comp[2]);
tvb_composite_append(tvb_comp[5], tvb_comp[3]);
tvb_composite_finalize(tvb_comp[5]);
/* Test the TVBUFF_COMPOSITE objects. */
test(tvb_comp[0], "Composite 0", comp[0], comp_length[0], comp_reported_length[0]);
test(tvb_comp[1], "Composite 1", comp[1], comp_length[1], comp_reported_length[1]);
test(tvb_comp[2], "Composite 2", comp[2], comp_length[2], comp_reported_length[2]);
test(tvb_comp[3], "Composite 3", comp[3], comp_length[3], comp_reported_length[3]);
test(tvb_comp[4], "Composite 4", comp[4], comp_length[4], comp_reported_length[4]);
test(tvb_comp[5], "Composite 5", comp[5], comp_length[5], comp_reported_length[5]);
/* free memory. */
/* Don't free: comp[0] */
g_free(comp[1]);
/* Don't free: comp[2] */
g_free(comp[3]);
g_free(comp[4]);
g_free(comp[5]);
tvb_free_chain(tvb_parent); /* should free all tvb's and associated data */
}
/* Note: valgrind can be used to check for tvbuff memory leaks */
int
main(void)
{
/* For valgrind: See GLib documentation: "Running GLib Applications" */
g_setenv("G_DEBUG", "gc-friendly", 1);
g_setenv("G_SLICE", "always-malloc", 1);
except_init();
run_tests();
except_deinit();
exit(failed?1:0);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
Reference in New Issue View Git Blame Copy Permalink