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/*
* ngtcp2
*
* Copyright (c) 2024 ngtcp2 contributors
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "ngtcp2_ppe_test.h"
#include <stdio.h>
#include "ngtcp2_ppe.h"
#include "ngtcp2_test_helper.h"
static const MunitTest tests[] = {
munit_void_test(test_ngtcp2_ppe_dgram_padding_size),
munit_void_test(test_ngtcp2_ppe_padding_size),
munit_test_end(),
};
const MunitSuite ppe_suite = {
.prefix = "/ppe",
.tests = tests,
};
static void set_padding_range(uint8_t *buf, size_t buflen, size_t offset,
size_t len) {
memset(buf, 0xff, buflen);
memset(buf + offset, 0, len);
}
void test_ngtcp2_ppe_dgram_padding_size(void) {
ngtcp2_ppe ppe;
ngtcp2_crypto_cc cc = {0};
uint8_t buf[2048];
uint8_t pkt[2048];
cc.aead.max_overhead = NGTCP2_FAKE_AEAD_OVERHEAD;
/* Add padding to make UDP datagram payload to
NGTCP2_MAX_UDP_PAYLOAD_SIZE */
ngtcp2_ppe_init(&ppe, buf, 1280, 0, &cc);
ppe.buf.last += 917;
set_padding_range(pkt, sizeof(pkt), 917, 267);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_dgram_padding(&ppe);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* UDP datagram payload is already NGTCP2_MAX_UDP_PAYLOAD_SIZE */
ngtcp2_ppe_init(&ppe, buf, 1280, 0, &cc);
ppe.buf.last += 1200;
set_padding_range(pkt, sizeof(pkt), 0, 0);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_dgram_padding(&ppe);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* UDP datagram payload is already NGTCP2_MAX_UDP_PAYLOAD_SIZE
because of the previous QUIC packet */
ngtcp2_ppe_init(&ppe, buf + 889, 1280, 889, &cc);
ppe.buf.last += 311;
set_padding_range(pkt, sizeof(pkt), 0, 0);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_dgram_padding(&ppe);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* Buffer is smaller than requested size */
ngtcp2_ppe_init(&ppe, buf + 111, 1280 - 111, 111, &cc);
ppe.buf.last += 917;
set_padding_range(pkt, sizeof(pkt), 1028, 236);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_dgram_padding_size(&ppe, 1400);
assert_memory_equal(1280, pkt, buf);
}
void test_ngtcp2_ppe_padding_size(void) {
ngtcp2_ppe ppe;
ngtcp2_crypto_cc cc = {0};
uint8_t buf[2048];
uint8_t pkt[2048];
cc.aead.max_overhead = NGTCP2_FAKE_AEAD_OVERHEAD;
/* Add padding to make UDP datagram payload to
NGTCP2_MAX_UDP_PAYLOAD_SIZE */
ngtcp2_ppe_init(&ppe, buf, 1280, /* should be ignored */ 1, &cc);
ppe.buf.last += 917;
set_padding_range(pkt, sizeof(pkt), 917, 267);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_padding_size(&ppe, NGTCP2_MAX_UDP_PAYLOAD_SIZE);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* UDP datagram payload is already NGTCP2_MAX_UDP_PAYLOAD_SIZE */
ngtcp2_ppe_init(&ppe, buf, 1280, /* should be ignored */ 111, &cc);
ppe.buf.last += 1200;
set_padding_range(pkt, sizeof(pkt), 0, 0);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_padding_size(&ppe, NGTCP2_MAX_UDP_PAYLOAD_SIZE);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* Buffer is smaller than requested size */
ngtcp2_ppe_init(&ppe, buf, 1280, /* should be ignored*/ 111, &cc);
ppe.buf.last += 917;
set_padding_range(pkt, sizeof(pkt), 917, 347);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_padding_size(&ppe, 1400);
assert_memory_equal(1280, pkt, buf);
/* Add padding to ensure header protection sample */
ngtcp2_ppe_init(&ppe, buf, 1280, /* should be ignored */ 1, &cc);
ppe.buf.last += 5;
ppe.pkt_num_offset = 4;
set_padding_range(pkt, sizeof(pkt), 5, 3);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_padding_size(&ppe, 0);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
/* No need to add padding */
ngtcp2_ppe_init(&ppe, buf, 1280, /* should be ignored */ 1, &cc);
ppe.buf.last += 8;
ppe.pkt_num_offset = 4;
set_padding_range(pkt, sizeof(pkt), 0, 0);
memset(buf, 0xff, sizeof(buf));
ngtcp2_ppe_padding_size(&ppe, 0);
assert_memory_equal(NGTCP2_MAX_UDP_PAYLOAD_SIZE, pkt, buf);
}
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