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openssl/test/wpackettest.c

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/*
* Copyright 2016-2020 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 <string.h>
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include "internal/packet.h"
#include "testutil.h"
static const unsigned char simple1[] = { 0xff };
static const unsigned char simple2[] = { 0x01, 0xff };
static const unsigned char simple3[] = { 0x00, 0x00, 0x00, 0x01, 0xff };
static const unsigned char nestedsub[] = { 0x03, 0xff, 0x01, 0xff };
static const unsigned char seqsub[] = { 0x01, 0xff, 0x01, 0xff };
static const unsigned char empty[] = { 0x00 };
static const unsigned char alloc[] = { 0x02, 0xfe, 0xff };
static const unsigned char submem[] = { 0x03, 0x02, 0xfe, 0xff };
static const unsigned char fixed[] = { 0xff, 0xff, 0xff };
static const unsigned char simpleder[] = {
0xfc, 0x04, 0x00, 0x01, 0x02, 0x03, 0xff, 0xfe, 0xfd
};
#ifndef OPENSSL_NO_QUIC
/* QUIC sub-packet with 4-byte length prefix, containing a 1-byte vlint */
static const unsigned char quic1[] = { 0x80, 0x00, 0x00, 0x01, 0x09 };
/* QUIC sub-packet with 1-byte length prefix, containing a 1-byte vlint */
static const unsigned char quic2[] = { 0x01, 0x09 };
/* QUIC sub-packet with 2-byte length prefix, containing a 2-byte vlint */
static const unsigned char quic3[] = { 0x40, 0x02, 0x40, 0x41 };
/* QUIC sub-packet with 8-byte length prefix, containing a 4-byte vlint */
static const unsigned char quic4[] = {
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0x80, 0x01, 0x3c, 0x6a
};
/* QUIC sub-packet with 8-byte length prefix, containing a 8-byte vlint */
static const unsigned char quic5[] = {
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
0xef, 0x77, 0x21, 0x3f, 0x3f, 0x50, 0x5b, 0xa5
};
/* QUIC sub-packet, length known up-front */
static const unsigned char quic6[] = { 0x03, 0x55, 0x66, 0x77 };
/* Nested and sequential sub-packets with length prefixes */
static const unsigned char quic7[] = {
0x07, 0x80, 0x00, 0x00, 0x08, 0x65, 0x14, 0x40, 0x01, 0x05,
0x40, 0x01, 0x11, 0x40, 0x01, 0x12, 0x40, 0x01, 0x13
};
#endif
static BUF_MEM *buf;
static int cleanup(WPACKET *pkt)
{
WPACKET_cleanup(pkt);
return 0;
}
static int test_WPACKET_init(void)
{
WPACKET pkt;
int i;
size_t written;
unsigned char sbuf[3];
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
/* Closing a top level WPACKET should fail */
|| !TEST_false(WPACKET_close(&pkt))
/* Finishing a top level WPACKET should succeed */
|| !TEST_true(WPACKET_finish(&pkt))
/*
* Can't call close or finish on a WPACKET that's already
* finished.
*/
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
return cleanup(&pkt);
/* Now try with a one byte length prefix */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
return cleanup(&pkt);
/* And a longer length prefix */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 4))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple3, sizeof(simple3)))
return cleanup(&pkt);
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1)))
return cleanup(&pkt);
for (i = 1; i < 257; i++) {
/*
* Putting more bytes in than fit for the size of the length prefix
* should fail
*/
if (!TEST_int_eq(WPACKET_put_bytes_u8(&pkt, 0xff), i < 256))
return cleanup(&pkt);
}
if (!TEST_true(WPACKET_finish(&pkt)))
return cleanup(&pkt);
/* Test initialising from a fixed size buffer */
if (!TEST_true(WPACKET_init_static_len(&pkt, sbuf, sizeof(sbuf), 0))
/* Adding 3 bytes should succeed */
|| !TEST_true(WPACKET_put_bytes_u24(&pkt, 0xffffff))
/* Adding 1 more byte should fail */
|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
/* Finishing the top level WPACKET should succeed */
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(sbuf, written, fixed, sizeof(sbuf))
/* Initialise with 1 len byte */
|| !TEST_true(WPACKET_init_static_len(&pkt, sbuf, sizeof(sbuf), 1))
/* Adding 2 bytes should succeed */
|| !TEST_true(WPACKET_put_bytes_u16(&pkt, 0xfeff))
/* Adding 1 more byte should fail */
|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(sbuf, written, alloc, sizeof(alloc)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_set_max_size(void)
{
WPACKET pkt;
size_t written;
if (!TEST_true(WPACKET_init(&pkt, buf))
/*
* No previous lenbytes set so we should be ok to set the max
* possible max size
*/
|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX))
/* We should be able to set it smaller too */
|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX -1))
/* And setting it bigger again should be ok */
|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX))
|| !TEST_true(WPACKET_finish(&pkt)))
return cleanup(&pkt);
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
/*
* Should fail because we already consumed 1 byte with the
* length
*/
|| !TEST_false(WPACKET_set_max_size(&pkt, 0))
/*
* Max size can't be bigger than biggest that will fit in
* lenbytes
*/
|| !TEST_false(WPACKET_set_max_size(&pkt, 0x0101))
/* It can be the same as the maximum possible size */
|| !TEST_true(WPACKET_set_max_size(&pkt, 0x0100))
/* Or it can be less */
|| !TEST_true(WPACKET_set_max_size(&pkt, 0x01))
/* Should fail because packet is already filled */
|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
/* You can't put in more bytes than max size */
|| !TEST_true(WPACKET_set_max_size(&pkt, 0x02))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_start_sub_packet(void)
{
WPACKET pkt;
size_t written;
size_t len;
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
/* Can't finish because we have a sub packet */
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
/* Sub packet is closed so can't close again */
|| !TEST_false(WPACKET_close(&pkt))
/* Now a top level so finish should succeed */
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
return cleanup(&pkt);
/* Single sub-packet with length prefix */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
return cleanup(&pkt);
/* Nested sub-packets with length prefixes */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 1)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 3)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, nestedsub, sizeof(nestedsub)))
return cleanup(&pkt);
/* Sequential sub-packets with length prefixes */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, seqsub, sizeof(seqsub)))
return cleanup(&pkt);
/* Nested sub-packets with lengths filled before finish */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 1)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 3)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_fill_lengths(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, nestedsub, sizeof(nestedsub))
|| !TEST_true(WPACKET_finish(&pkt)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_set_flags(void)
{
WPACKET pkt;
size_t written;
/* Set packet to be non-zero length */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_NON_ZERO_LENGTH))
/* Should fail because of zero length */
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
return cleanup(&pkt);
/* Repeat above test in a sub-packet */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet(&pkt))
|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_NON_ZERO_LENGTH))
/* Should fail because of zero length */
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
return cleanup(&pkt);
/* Set packet to abandon non-zero length */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_size_t_eq(written, 0))
return cleanup(&pkt);
/* Repeat above test but only abandon a sub-packet */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, empty, sizeof(empty)))
return cleanup(&pkt);
/* And repeat with a non empty sub-packet */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_allocate_bytes(void)
{
WPACKET pkt;
size_t written;
unsigned char *bytes;
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_allocate_bytes(&pkt, 2, &bytes)))
return cleanup(&pkt);
bytes[0] = 0xfe;
bytes[1] = 0xff;
if (!TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, alloc, sizeof(alloc)))
return cleanup(&pkt);
/* Repeat with WPACKET_sub_allocate_bytes */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_sub_allocate_bytes_u8(&pkt, 2, &bytes)))
return cleanup(&pkt);
bytes[0] = 0xfe;
bytes[1] = 0xff;
if (!TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, submem, sizeof(submem)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_memcpy(void)
{
WPACKET pkt;
size_t written;
const unsigned char bytes[] = { 0xfe, 0xff };
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_memcpy(&pkt, bytes, sizeof(bytes)))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, alloc, sizeof(alloc)))
return cleanup(&pkt);
/* Repeat with WPACKET_sub_memcpy() */
if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
|| !TEST_true(WPACKET_sub_memcpy_u8(&pkt, bytes, sizeof(bytes)))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, submem, sizeof(submem)))
return cleanup(&pkt);
return 1;
}
static int test_WPACKET_init_der(void)
{
WPACKET pkt;
unsigned char sbuf[1024];
unsigned char testdata[] = { 0x00, 0x01, 0x02, 0x03 };
unsigned char testdata2[259] = { 0x82, 0x01, 0x00 };
size_t written[2];
size_t size1, size2;
int flags = WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH;
int i;
/* Test initialising for writing DER */
if (!TEST_true(WPACKET_init_der(&pkt, sbuf, sizeof(sbuf)))
|| !TEST_true(WPACKET_put_bytes_u24(&pkt, 0xfffefd))
/* Test writing data in a length prefixed sub-packet */
|| !TEST_true(WPACKET_start_sub_packet(&pkt))
|| !TEST_true(WPACKET_memcpy(&pkt, testdata, sizeof(testdata)))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xfc))
/* this sub-packet is empty, and should render zero bytes */
|| (!TEST_true(WPACKET_start_sub_packet(&pkt))
|| !TEST_true(WPACKET_set_flags(&pkt, flags))
|| !TEST_true(WPACKET_get_total_written(&pkt, &size1))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &size2))
|| !TEST_size_t_eq(size1, size2))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written[0]))
|| !TEST_mem_eq(WPACKET_get_curr(&pkt), written[0], simpleder,
sizeof(simpleder)))
return cleanup(&pkt);
/* Generate random packet data for test */
if (!TEST_int_gt(RAND_bytes(&testdata2[3], sizeof(testdata2) - 3), 0))
return 0;
/*
* Test with a sub-packet that has 2 length bytes. We do 2 passes - first
* with a NULL buffer, just to calculate lengths, and a second pass with a
* real buffer to actually generate a packet
*/
for (i = 0; i < 2; i++) {
if (i == 0) {
if (!TEST_true(WPACKET_init_null_der(&pkt)))
return 0;
} else {
if (!TEST_true(WPACKET_init_der(&pkt, sbuf, sizeof(sbuf))))
return 0;
}
if (!TEST_true(WPACKET_start_sub_packet(&pkt))
|| !TEST_true(WPACKET_memcpy(&pkt, &testdata2[3],
sizeof(testdata2) - 3))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written[i])))
return cleanup(&pkt);
}
/*
* Check that the size calculated in the first pass equals the size of the
* packet actually generated in the second pass. Also check the generated
* packet looks as we expect it to.
*/
if (!TEST_size_t_eq(written[0], written[1])
|| !TEST_mem_eq(WPACKET_get_curr(&pkt), written[1], testdata2,
sizeof(testdata2)))
return 0;
return 1;
}
#ifndef OPENSSL_NO_QUIC
static int test_WPACKET_quic(void)
{
WPACKET pkt;
size_t written, len;
unsigned char *bytes;
/* QUIC sub-packet with 4-byte length prefix, containing a 1-byte vlint */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_quic_sub_packet(&pkt))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x09))
/* Can't finish because we have a sub packet */
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
/* Sub packet is closed so can't close again */
|| !TEST_false(WPACKET_close(&pkt))
/* Now a top level so finish should succeed */
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic1, sizeof(quic1)))
return cleanup(&pkt);
/* QUIC sub-packet with 1-byte length prefix, containing a 1-byte vlint */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_1B_MAX))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x09))
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic2, sizeof(quic2)))
return cleanup(&pkt);
/* QUIC sub-packet with 2-byte length prefix, containing a 2-byte vlint */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_2B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x41))
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic3, sizeof(quic3)))
return cleanup(&pkt);
/* QUIC sub-packet with 8-byte length prefix, containing a 4-byte vlint */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_8B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x13c6a))
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic4, sizeof(quic4)))
return cleanup(&pkt);
/* QUIC sub-packet with 8-byte length prefix, containing a 8-byte vlint */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_8B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x2f77213f3f505ba5ULL))
|| !TEST_false(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_false(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic5, sizeof(quic5)))
return cleanup(&pkt);
/* QUIC sub-packet, length known up-front */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_quic_sub_allocate_bytes(&pkt, 3, &bytes)))
return cleanup(&pkt);
bytes[0] = 0x55;
bytes[1] = 0x66;
bytes[2] = 0x77;
if (!TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic6, sizeof(quic6)))
return cleanup(&pkt);
/* Nested and sequential sub-packets with length prefixes */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x07))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 1)
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_4B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x2514))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 2)
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_2B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x05))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 1)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_2B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x11))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_get_length(&pkt, &len))
|| !TEST_size_t_eq(len, 8)
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_2B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x12))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_start_quic_sub_packet_bound(&pkt, OSSL_QUIC_VLINT_2B_MIN))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, 0x13))
|| !TEST_true(WPACKET_close(&pkt))
|| !TEST_true(WPACKET_finish(&pkt))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
|| !TEST_mem_eq(buf->data, written, quic7, sizeof(quic7)))
return cleanup(&pkt);
/* Trying to encode a value above OSSL_QUIC_VLINT_MAX should fail */
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_false(WPACKET_quic_write_vlint(&pkt, OSSL_QUIC_VLINT_MAX+1))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, OSSL_QUIC_VLINT_MAX)))
return cleanup(&pkt);
WPACKET_cleanup(&pkt);
return 1;
}
static int test_WPACKET_quic_vlint_random(void)
{
size_t i, written;
uint64_t expected, actual = 0;
unsigned char rand_data[9];
WPACKET pkt;
PACKET read_pkt = {0};
for (i = 0; i < 10000; ++i) {
if (!TEST_int_gt(RAND_bytes(rand_data, sizeof(rand_data)), 0))
return cleanup(&pkt);
expected = *(uint64_t*)rand_data;
/*
* Ensure that all size classes get tested with equal probability.
*/
switch (rand_data[8] & 3) {
case 0:
expected &= OSSL_QUIC_VLINT_1B_MAX;
break;
case 1:
expected &= OSSL_QUIC_VLINT_2B_MAX;
break;
case 2:
expected &= OSSL_QUIC_VLINT_4B_MAX;
break;
case 3:
expected &= OSSL_QUIC_VLINT_8B_MAX;
break;
}
if (!TEST_true(WPACKET_init(&pkt, buf))
|| !TEST_true(WPACKET_quic_write_vlint(&pkt, expected))
|| !TEST_true(WPACKET_get_total_written(&pkt, &written)))
return cleanup(&pkt);
if (!TEST_true(PACKET_buf_init(&read_pkt, (unsigned char *)buf->data, written))
|| !TEST_true(PACKET_get_quic_vlint(&read_pkt, &actual))
|| !TEST_uint64_t_eq(expected, actual))
return cleanup(&pkt);
WPACKET_cleanup(&pkt);
}
WPACKET_cleanup(&pkt);
return 1;
}
#endif
int setup_tests(void)
{
if (!TEST_ptr(buf = BUF_MEM_new()))
return 0;
ADD_TEST(test_WPACKET_init);
ADD_TEST(test_WPACKET_set_max_size);
ADD_TEST(test_WPACKET_start_sub_packet);
ADD_TEST(test_WPACKET_set_flags);
ADD_TEST(test_WPACKET_allocate_bytes);
ADD_TEST(test_WPACKET_memcpy);
ADD_TEST(test_WPACKET_init_der);
#ifndef OPENSSL_NO_QUIC
ADD_TEST(test_WPACKET_quic);
ADD_TEST(test_WPACKET_quic_vlint_random);
#endif
return 1;
}
void cleanup_tests(void)
{
BUF_MEM_free(buf);
}
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