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/*
* Copyright (C) 2019 Red Hat, Inc.
*
* Author: Daiki Ueno
*
* This file is part of GnuTLS.
*
* GnuTLS 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 3 of the License, or
* (at your option) any later version.
*
* GnuTLS 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gnutls_int.h"
#include "../lib/iov.h"
#include "utils.h"
struct exp_st {
ssize_t ret;
size_t iov_index;
size_t iov_offset;
};
struct test_st {
const char *name;
const giovec_t *iov;
size_t iovcnt;
size_t block_size;
const struct exp_st *exp;
size_t expcnt;
};
static const giovec_t iov16[] = { { (void *)"0123456789012345", 16 },
{ (void *)"0123456789012345", 16 },
{ (void *)"0123456789012345", 16 },
{ (void *)"0123456789012345", 16 } };
static const struct exp_st exp16_64[] = { { 64, 4, 0 }, { 0, 0, 0 } };
static const struct exp_st exp16_32[] = { { 32, 2, 0 },
{ 32, 4, 0 },
{ 0, 0, 0 } };
static const struct exp_st exp16_16[] = { { 16, 1, 0 },
{ 16, 2, 0 },
{ 16, 3, 0 },
{ 16, 4, 0 },
{ 0, 0, 0 } };
static const struct exp_st exp16_4[] = { { 16, 1, 0 },
{ 16, 2, 0 },
{ 16, 3, 0 },
{ 16, 4, 0 },
{ 0, 0, 0 } };
static const struct exp_st exp16_3[] = { { 15, 0, 15 }, { 3, 1, 2 },
{ 12, 1, 14 }, { 3, 2, 1 },
{ 15, 3, 0 }, { 15, 3, 15 },
{ 1, 4, 0 }, { 0, 0, 0 } };
static const giovec_t iov8[] = { { (void *)"01234567", 8 },
{ (void *)"01234567", 8 },
{ (void *)"01234567", 8 },
{ (void *)"01234567", 8 } };
static const struct exp_st exp8_64[] = { { 32, 4, 0 }, { 0, 0, 0 } };
static const giovec_t iov_odd[] = { { (void *)"0", 1 },
{ (void *)"012", 3 },
{ (void *)"01234", 5 },
{ (void *)"0123456", 7 },
{ (void *)"012345678", 9 },
{ (void *)"01234567890", 11 },
{ (void *)"0123456789012", 13 },
{ (void *)"012345678901234", 15 } };
static const struct exp_st exp_odd_16[] = { { 16, 4, 0 },
{ 16, 5, 7 },
{ 16, 6, 12 },
{ 16, 8, 0 },
{ 0, 0, 0 } };
static const giovec_t iov_skip[] = { { (void *)"0123456789012345", 16 },
{ (void *)"01234567", 8 },
{ (void *)"", 0 },
{ (void *)"", 0 },
{ (void *)"0123456789012345", 16 } };
static const struct exp_st exp_skip_16[] = { { 16, 1, 0 },
{ 16, 4, 8 },
{ 8, 5, 0 },
{ 0, 0, 0 } };
static const giovec_t iov_empty[] = { { (void *)"", 0 },
{ (void *)"", 0 },
{ (void *)"", 0 },
{ (void *)"", 0 } };
static const struct exp_st exp_empty_16[] = { { 0, 0, 0 } };
static const struct test_st tests[] = {
{ "16/64", iov16, sizeof(iov16) / sizeof(iov16[0]), 64, exp16_64,
sizeof(exp16_64) / sizeof(exp16_64[0]) },
{ "16/32", iov16, sizeof(iov16) / sizeof(iov16[0]), 32, exp16_32,
sizeof(exp16_32) / sizeof(exp16_32[0]) },
{ "16/16", iov16, sizeof(iov16) / sizeof(iov16[0]), 16, exp16_16,
sizeof(exp16_16) / sizeof(exp16_16[0]) },
{ "16/4", iov16, sizeof(iov16) / sizeof(iov16[0]), 4, exp16_4,
sizeof(exp16_4) / sizeof(exp16_4[0]) },
{ "16/3", iov16, sizeof(iov16) / sizeof(iov16[0]), 3, exp16_3,
sizeof(exp16_3) / sizeof(exp16_3[0]) },
{ "8/64", iov8, sizeof(iov8) / sizeof(iov8[0]), 64, exp8_64,
sizeof(exp8_64) / sizeof(exp8_64[0]) },
{ "odd/16", iov_odd, sizeof(iov_odd) / sizeof(iov_odd[0]), 16,
exp_odd_16, sizeof(exp_odd_16) / sizeof(exp_odd_16[0]) },
{ "skip/16", iov_skip, sizeof(iov_skip) / sizeof(iov_skip[0]), 16,
exp_skip_16, sizeof(exp_skip_16) / sizeof(exp_skip_16[0]) },
{ "empty/16", iov_empty, sizeof(iov_empty) / sizeof(iov_empty[0]), 16,
exp_empty_16, sizeof(exp_empty_16) / sizeof(exp_empty_16[0]) },
};
static void copy(giovec_t *dst, uint8_t *buffer, const giovec_t *src,
size_t iovcnt)
{
uint8_t *p = buffer;
size_t i;
for (i = 0; i < iovcnt; i++) {
dst[i].iov_base = p;
dst[i].iov_len = src[i].iov_len;
memcpy(dst[i].iov_base, src[i].iov_base, src[i].iov_len);
p += src[i].iov_len;
}
}
static void translate(uint8_t *data, size_t len)
{
for (; len > 0; len--) {
uint8_t *p = &data[len - 1];
if (*p >= '0' && *p <= '9')
*p = 'A' + *p - '0';
else if (*p >= 'A' && *p <= 'Z')
*p = '0' + *p - 'A';
}
}
#define MAX_BUF 1024
#define MAX_IOV 16
void doit(void)
{
uint8_t buffer[MAX_BUF];
size_t i;
for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
giovec_t iov[MAX_IOV];
struct iov_iter_st iter;
const struct exp_st *exp = tests[i].exp;
uint8_t *data;
size_t j;
copy(iov, buffer, tests[i].iov, tests[i].iovcnt);
success("%s\n", tests[i].name);
assert(_gnutls_iov_iter_init(&iter, iov, tests[i].iovcnt,
tests[i].block_size) == 0);
for (j = 0; j < tests[i].expcnt; j++) {
ssize_t ret;
ret = _gnutls_iov_iter_next(&iter, &data);
if (ret != exp[j].ret)
fail("iov_iter_next: %d != %d\n", (int)ret,
(int)exp[j].ret);
else if (debug)
success("iov_iter_next: %d == %d\n", (int)ret,
(int)exp[j].ret);
if (ret == 0)
break;
if (ret > 0) {
if (iter.iov_index != exp[j].iov_index)
fail("iter.iov_index: %u != %u\n",
(unsigned)iter.iov_index,
(unsigned)exp[j].iov_index);
else if (debug)
success("iter.iov_index: %u == %u\n",
(unsigned)iter.iov_index,
(unsigned)exp[j].iov_index);
if (iter.iov_offset != exp[j].iov_offset)
fail("iter.iov_offset: %u != %u\n",
(unsigned)iter.iov_offset,
(unsigned)exp[j].iov_offset);
else if (debug)
success("iter.iov_offset: %u == %u\n",
(unsigned)iter.iov_offset,
(unsigned)exp[j].iov_offset);
if (iter.block_offset != 0)
fail("iter.block_offset: %u != 0\n",
(unsigned)iter.block_offset);
else if (debug)
success("iter.block_offset: %u == 0\n",
(unsigned)iter.block_offset);
translate(data, ret);
ret = _gnutls_iov_iter_sync(&iter, data, ret);
if (ret < 0)
fail("sync failed\n");
}
}
for (j = 0; j < tests[i].iovcnt; j++) {
translate(iov[j].iov_base, iov[j].iov_len);
if (memcmp(iov[j].iov_base, tests[i].iov[j].iov_base,
iov[j].iov_len) != 0)
fail("iov doesn't match: %*s != %*s\n",
(int)iov[j].iov_len,
(char *)iov[j].iov_base,
(int)tests[i].iov[j].iov_len,
(char *)tests[i].iov[j].iov_len);
}
}
}
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