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openssl/test/packettest.c

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/*
* Copyright 2015-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "internal/packet_quic.h"
#include "testutil.h"
#define BUF_LEN 255
static unsigned char smbuf[BUF_LEN + 1];
static int test_PACKET_remaining(void)
{
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 1))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), 1)
|| !TEST_true(PACKET_forward(&pkt, 1))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), 0))
return 0;
return 1;
}
static int test_PACKET_end(void)
{
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN)
|| !TEST_ptr_eq(PACKET_end(&pkt), smbuf + BUF_LEN)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 1))
|| !TEST_ptr_eq(PACKET_end(&pkt), smbuf + BUF_LEN)
|| !TEST_true(PACKET_forward(&pkt, 1))
|| !TEST_ptr_eq(PACKET_end(&pkt), smbuf + BUF_LEN))
return 0;
return 1;
}
static int test_PACKET_get_1(void)
{
unsigned int i = 0;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_1(&pkt, &i))
|| !TEST_uint_eq(i, 0x02)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 2))
|| !TEST_true(PACKET_get_1(&pkt, &i))
|| !TEST_uint_eq(i, 0xfe)
|| !TEST_false(PACKET_get_1(&pkt, &i)))
return 0;
return 1;
}
static int test_PACKET_get_4(void)
{
unsigned long i = 0;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_4(&pkt, &i))
|| !TEST_ulong_eq(i, 0x08060402UL)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 8))
|| !TEST_true(PACKET_get_4(&pkt, &i))
|| !TEST_ulong_eq(i, 0xfefcfaf8UL)
|| !TEST_false(PACKET_get_4(&pkt, &i)))
return 0;
return 1;
}
static int test_PACKET_get_net_2(void)
{
unsigned int i = 0;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_net_2(&pkt, &i))
|| !TEST_uint_eq(i, 0x0204)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 4))
|| !TEST_true(PACKET_get_net_2(&pkt, &i))
|| !TEST_uint_eq(i, 0xfcfe)
|| !TEST_false(PACKET_get_net_2(&pkt, &i)))
return 0;
return 1;
}
static int test_PACKET_get_net_3(void)
{
unsigned long i = 0;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_net_3(&pkt, &i))
|| !TEST_ulong_eq(i, 0x020406UL)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 6))
|| !TEST_true(PACKET_get_net_3(&pkt, &i))
|| !TEST_ulong_eq(i, 0xfafcfeUL)
|| !TEST_false(PACKET_get_net_3(&pkt, &i)))
return 0;
return 1;
}
static int test_PACKET_get_net_4(void)
{
unsigned long i = 0;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_net_4(&pkt, &i))
|| !TEST_ulong_eq(i, 0x02040608UL)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 8))
|| !TEST_true(PACKET_get_net_4(&pkt, &i))
|| !TEST_ulong_eq(i, 0xf8fafcfeUL)
|| !TEST_false(PACKET_get_net_4(&pkt, &i)))
return 0;
return 1;
}
static int test_PACKET_get_sub_packet(void)
{
PACKET pkt, subpkt;
unsigned long i = 0;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_sub_packet(&pkt, &subpkt, 4))
|| !TEST_true(PACKET_get_net_4(&subpkt, &i))
|| !TEST_ulong_eq(i, 0x02040608UL)
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), 0)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 8))
|| !TEST_true(PACKET_get_sub_packet(&pkt, &subpkt, 4))
|| !TEST_true(PACKET_get_net_4(&subpkt, &i))
|| !TEST_ulong_eq(i, 0xf8fafcfeUL)
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), 0)
|| !TEST_false(PACKET_get_sub_packet(&pkt, &subpkt, 4)))
return 0;
return 1;
}
static int test_PACKET_get_bytes(void)
{
const unsigned char *bytes = NULL;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_get_bytes(&pkt, &bytes, 4))
|| !TEST_uchar_eq(bytes[0], 2)
|| !TEST_uchar_eq(bytes[1], 4)
|| !TEST_uchar_eq(bytes[2], 6)
|| !TEST_uchar_eq(bytes[3], 8)
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN -4)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 8))
|| !TEST_true(PACKET_get_bytes(&pkt, &bytes, 4))
|| !TEST_uchar_eq(bytes[0], 0xf8)
|| !TEST_uchar_eq(bytes[1], 0xfa)
|| !TEST_uchar_eq(bytes[2], 0xfc)
|| !TEST_uchar_eq(bytes[3], 0xfe)
|| !TEST_false(PACKET_remaining(&pkt)))
return 0;
return 1;
}
static int test_PACKET_copy_bytes(void)
{
unsigned char bytes[4];
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_copy_bytes(&pkt, bytes, 4))
|| !TEST_char_eq(bytes[0], 2)
|| !TEST_char_eq(bytes[1], 4)
|| !TEST_char_eq(bytes[2], 6)
|| !TEST_char_eq(bytes[3], 8)
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN - 4)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 8))
|| !TEST_true(PACKET_copy_bytes(&pkt, bytes, 4))
|| !TEST_uchar_eq(bytes[0], 0xf8)
|| !TEST_uchar_eq(bytes[1], 0xfa)
|| !TEST_uchar_eq(bytes[2], 0xfc)
|| !TEST_uchar_eq(bytes[3], 0xfe)
|| !TEST_false(PACKET_remaining(&pkt)))
return 0;
return 1;
}
static int test_PACKET_copy_all(void)
{
unsigned char tmp[BUF_LEN];
PACKET pkt;
size_t len;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_copy_all(&pkt, tmp, BUF_LEN, &len))
|| !TEST_size_t_eq(len, BUF_LEN)
|| !TEST_mem_eq(smbuf, BUF_LEN, tmp, BUF_LEN)
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN)
|| !TEST_false(PACKET_copy_all(&pkt, tmp, BUF_LEN - 1, &len)))
return 0;
return 1;
}
static int test_PACKET_memdup(void)
{
unsigned char *data = NULL;
size_t len;
PACKET pkt;
int result = 0;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_memdup(&pkt, &data, &len))
|| !TEST_size_t_eq(len, BUF_LEN)
|| !TEST_mem_eq(data, len, PACKET_data(&pkt), len)
|| !TEST_true(PACKET_forward(&pkt, 10))
|| !TEST_true(PACKET_memdup(&pkt, &data, &len))
|| !TEST_size_t_eq(len, BUF_LEN - 10)
|| !TEST_mem_eq(data, len, PACKET_data(&pkt), len))
goto end;
result = 1;
end:
OPENSSL_free(data);
return result;
}
static int test_PACKET_strndup(void)
{
char buf1[10], buf2[10];
char *data = NULL;
PACKET pkt;
int result = 0;
memset(buf1, 'x', 10);
memset(buf2, 'y', 10);
buf2[5] = '\0';
if (!TEST_true(PACKET_buf_init(&pkt, (unsigned char*)buf1, 10))
|| !TEST_true(PACKET_strndup(&pkt, &data))
|| !TEST_size_t_eq(strlen(data), 10)
|| !TEST_strn_eq(data, buf1, 10)
|| !TEST_true(PACKET_buf_init(&pkt, (unsigned char*)buf2, 10))
|| !TEST_true(PACKET_strndup(&pkt, &data))
|| !TEST_size_t_eq(strlen(data), 5)
|| !TEST_str_eq(data, buf2))
goto end;
result = 1;
end:
OPENSSL_free(data);
return result;
}
static int test_PACKET_contains_zero_byte(void)
{
char buf1[10], buf2[10];
PACKET pkt;
memset(buf1, 'x', 10);
memset(buf2, 'y', 10);
buf2[5] = '\0';
if (!TEST_true(PACKET_buf_init(&pkt, (unsigned char*)buf1, 10))
|| !TEST_false(PACKET_contains_zero_byte(&pkt))
|| !TEST_true(PACKET_buf_init(&pkt, (unsigned char*)buf2, 10))
|| !TEST_true(PACKET_contains_zero_byte(&pkt)))
return 0;
return 1;
}
static int test_PACKET_forward(void)
{
const unsigned char *byte = NULL;
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_forward(&pkt, 1))
|| !TEST_true(PACKET_get_bytes(&pkt, &byte, 1))
|| !TEST_uchar_eq(byte[0], 4)
|| !TEST_true(PACKET_forward(&pkt, BUF_LEN - 3))
|| !TEST_true(PACKET_get_bytes(&pkt, &byte, 1))
|| !TEST_uchar_eq(byte[0], 0xfe))
return 0;
return 1;
}
static int test_PACKET_buf_init(void)
{
unsigned char buf1[BUF_LEN] = { 0 };
PACKET pkt;
/* Also tests PACKET_remaining() */
if (!TEST_true(PACKET_buf_init(&pkt, buf1, 4))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), 4)
|| !TEST_true(PACKET_buf_init(&pkt, buf1, BUF_LEN))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN)
|| !TEST_false(PACKET_buf_init(&pkt, buf1, -1)))
return 0;
return 1;
}
static int test_PACKET_null_init(void)
{
PACKET pkt;
PACKET_null_init(&pkt);
if (!TEST_size_t_eq(PACKET_remaining(&pkt), 0)
|| !TEST_false(PACKET_forward(&pkt, 1)))
return 0;
return 1;
}
static int test_PACKET_equal(void)
{
PACKET pkt;
if (!TEST_true(PACKET_buf_init(&pkt, smbuf, 4))
|| !TEST_true(PACKET_equal(&pkt, smbuf, 4))
|| !TEST_false(PACKET_equal(&pkt, smbuf + 1, 4))
|| !TEST_true(PACKET_buf_init(&pkt, smbuf, BUF_LEN))
|| !TEST_true(PACKET_equal(&pkt, smbuf, BUF_LEN))
|| !TEST_false(PACKET_equal(&pkt, smbuf, BUF_LEN - 1))
|| !TEST_false(PACKET_equal(&pkt, smbuf, BUF_LEN + 1))
|| !TEST_false(PACKET_equal(&pkt, smbuf, 0)))
return 0;
return 1;
}
static int test_PACKET_get_length_prefixed_1(void)
{
unsigned char buf1[BUF_LEN];
const size_t len = 16;
unsigned int i;
PACKET pkt, short_pkt, subpkt;
memset(&subpkt, 0, sizeof(subpkt));
buf1[0] = (unsigned char)len;
for (i = 1; i < BUF_LEN; i++)
buf1[i] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf1, BUF_LEN))
|| !TEST_true(PACKET_buf_init(&short_pkt, buf1, len))
|| !TEST_true(PACKET_get_length_prefixed_1(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len)
|| !TEST_true(PACKET_get_net_2(&subpkt, &i))
|| !TEST_uint_eq(i, 0x0204)
|| !TEST_false(PACKET_get_length_prefixed_1(&short_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&short_pkt), len))
return 0;
return 1;
}
static int test_PACKET_get_length_prefixed_2(void)
{
unsigned char buf1[1024];
const size_t len = 516; /* 0x0204 */
unsigned int i;
PACKET pkt, short_pkt, subpkt;
memset(&subpkt, 0, sizeof(subpkt));
for (i = 1; i <= 1024; i++)
buf1[i - 1] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf1, 1024))
|| !TEST_true(PACKET_buf_init(&short_pkt, buf1, len))
|| !TEST_true(PACKET_get_length_prefixed_2(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len)
|| !TEST_true(PACKET_get_net_2(&subpkt, &i))
|| !TEST_uint_eq(i, 0x0608)
|| !TEST_false(PACKET_get_length_prefixed_2(&short_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&short_pkt), len))
return 0;
return 1;
}
static int test_PACKET_get_length_prefixed_3(void)
{
unsigned char buf1[1024];
const size_t len = 516; /* 0x000204 */
unsigned int i;
PACKET pkt, short_pkt, subpkt;
memset(&subpkt, 0, sizeof(subpkt));
for (i = 0; i < 1024; i++)
buf1[i] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf1, 1024))
|| !TEST_true(PACKET_buf_init(&short_pkt, buf1, len))
|| !TEST_true(PACKET_get_length_prefixed_3(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len)
|| !TEST_true(PACKET_get_net_2(&subpkt, &i))
|| !TEST_uint_eq(i, 0x0608)
|| !TEST_false(PACKET_get_length_prefixed_3(&short_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&short_pkt), len))
return 0;
return 1;
}
static int test_PACKET_as_length_prefixed_1(void)
{
unsigned char buf1[BUF_LEN];
const size_t len = 16;
unsigned int i;
PACKET pkt, exact_pkt, subpkt;
memset(&subpkt, 0, sizeof(subpkt));
buf1[0] = (unsigned char)len;
for (i = 1; i < BUF_LEN; i++)
buf1[i] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf1, BUF_LEN))
|| !TEST_true(PACKET_buf_init(&exact_pkt, buf1, len + 1))
|| !TEST_false(PACKET_as_length_prefixed_1(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), BUF_LEN)
|| !TEST_true(PACKET_as_length_prefixed_1(&exact_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&exact_pkt), 0)
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len))
return 0;
return 1;
}
static int test_PACKET_as_length_prefixed_2(void)
{
unsigned char buf[1024];
const size_t len = 516; /* 0x0204 */
unsigned int i;
PACKET pkt, exact_pkt, subpkt;
memset(&subpkt, 0, sizeof(subpkt));
for (i = 1; i <= 1024; i++)
buf[i-1] = (i * 2) & 0xff;
if (!TEST_true(PACKET_buf_init(&pkt, buf, 1024))
|| !TEST_true(PACKET_buf_init(&exact_pkt, buf, len + 2))
|| !TEST_false(PACKET_as_length_prefixed_2(&pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&pkt), 1024)
|| !TEST_true(PACKET_as_length_prefixed_2(&exact_pkt, &subpkt))
|| !TEST_size_t_eq(PACKET_remaining(&exact_pkt), 0)
|| !TEST_size_t_eq(PACKET_remaining(&subpkt), len))
return 0;
return 1;
}
#ifndef OPENSSL_NO_QUIC
static int test_PACKET_get_quic_vlint(void)
{
struct quic_test_case {
unsigned char buf[16];
size_t expected_read_count;
uint64_t value;
};
static const struct quic_test_case cases[] = {
{ {0x00}, 1, 0 },
{ {0x01}, 1, 1 },
{ {0x3e}, 1, 62 },
{ {0x3f}, 1, 63 },
{ {0x40,0x00}, 2, 0 },
{ {0x40,0x01}, 2, 1 },
{ {0x40,0x02}, 2, 2 },
{ {0x40,0xff}, 2, 255 },
{ {0x41,0x00}, 2, 256 },
{ {0x7f,0xfe}, 2, 16382 },
{ {0x7f,0xff}, 2, 16383 },
{ {0x80,0x00,0x00,0x00}, 4, 0 },
{ {0x80,0x00,0x00,0x01}, 4, 1 },
{ {0x80,0x00,0x01,0x02}, 4, 258 },
{ {0x80,0x18,0x49,0x65}, 4, 1591653 },
{ {0xbe,0x18,0x49,0x65}, 4, 1041779045 },
{ {0xbf,0xff,0xff,0xff}, 4, 1073741823 },
{ {0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, 8, 0 },
{ {0xc0,0x00,0x00,0x00,0x00,0x00,0x01,0x02}, 8, 258 },
{ {0xfd,0x1f,0x59,0x8d,0xc9,0xf8,0x71,0x8a}, 8, 4404337426105397642 },
};
PACKET pkt;
size_t i;
uint64_t v;
for (i = 0; i < OSSL_NELEM(cases); ++i) {
memset(&pkt, 0, sizeof(pkt));
v = 55;
if (!TEST_true(PACKET_buf_init(&pkt, cases[i].buf, sizeof(cases[i].buf)))
|| !TEST_true(PACKET_get_quic_vlint(&pkt, &v))
|| !TEST_uint64_t_eq(v, cases[i].value)
|| !TEST_size_t_eq(PACKET_remaining(&pkt),
sizeof(cases[i].buf) - cases[i].expected_read_count)
)
return 0;
}
return 1;
}
static int test_PACKET_get_quic_length_prefixed(void)
{
struct quic_test_case {
unsigned char buf[16];
size_t enclen, len;
int fail;
};
static const struct quic_test_case cases[] = {
/* success cases */
{ {0x00}, 1, 0, 0 },
{ {0x01}, 1, 1, 0 },
{ {0x02}, 1, 2, 0 },
{ {0x03}, 1, 3, 0 },
{ {0x04}, 1, 4, 0 },
{ {0x05}, 1, 5, 0 },
/* failure cases */
{ {0x10}, 1, 0, 1 },
{ {0x3f}, 1, 0, 1 },
};
size_t i;
PACKET pkt, subpkt = {0};
for (i = 0; i < OSSL_NELEM(cases); ++i) {
memset(&pkt, 0, sizeof(pkt));
if (!TEST_true(PACKET_buf_init(&pkt, cases[i].buf,
cases[i].fail
? sizeof(cases[i].buf)
: cases[i].enclen + cases[i].len)))
return 0;
if (!TEST_int_eq(PACKET_get_quic_length_prefixed(&pkt, &subpkt), !cases[i].fail))
return 0;
if (cases[i].fail) {
if (!TEST_ptr_eq(pkt.curr, cases[i].buf))
return 0;
continue;
}
if (!TEST_ptr_eq(subpkt.curr, cases[i].buf + cases[i].enclen))
return 0;
if (!TEST_size_t_eq(subpkt.remaining, cases[i].len))
return 0;
}
return 1;
}
#endif
int setup_tests(void)
{
unsigned int i;
for (i = 1; i <= BUF_LEN; i++)
smbuf[i - 1] = (i * 2) & 0xff;
ADD_TEST(test_PACKET_buf_init);
ADD_TEST(test_PACKET_null_init);
ADD_TEST(test_PACKET_remaining);
ADD_TEST(test_PACKET_end);
ADD_TEST(test_PACKET_equal);
ADD_TEST(test_PACKET_get_1);
ADD_TEST(test_PACKET_get_4);
ADD_TEST(test_PACKET_get_net_2);
ADD_TEST(test_PACKET_get_net_3);
ADD_TEST(test_PACKET_get_net_4);
ADD_TEST(test_PACKET_get_sub_packet);
ADD_TEST(test_PACKET_get_bytes);
ADD_TEST(test_PACKET_copy_bytes);
ADD_TEST(test_PACKET_copy_all);
ADD_TEST(test_PACKET_memdup);
ADD_TEST(test_PACKET_strndup);
ADD_TEST(test_PACKET_contains_zero_byte);
ADD_TEST(test_PACKET_forward);
ADD_TEST(test_PACKET_get_length_prefixed_1);
ADD_TEST(test_PACKET_get_length_prefixed_2);
ADD_TEST(test_PACKET_get_length_prefixed_3);
ADD_TEST(test_PACKET_as_length_prefixed_1);
ADD_TEST(test_PACKET_as_length_prefixed_2);
#ifndef OPENSSL_NO_QUIC
ADD_TEST(test_PACKET_get_quic_vlint);
ADD_TEST(test_PACKET_get_quic_length_prefixed);
#endif
return 1;
}
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