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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "testlib/s2n_ktls_test_utils.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#include "utils/s2n_random.h"
#define S2N_TEST_TO_SEND 10
#define S2N_CONTROL_BUF_SIZE 100
#define S2N_TEST_MSG_IOVLEN 5
S2N_RESULT s2n_ktls_set_control_data(struct msghdr *msg, char *buf, size_t buf_size,
int cmsg_type, uint8_t record_type);
S2N_RESULT s2n_ktls_get_control_data(struct msghdr *msg, int cmsg_type, uint8_t *record_type);
int main(int argc, char **argv)
{
BEGIN_TEST();
const uint8_t test_record_type = 43;
/* test data */
uint8_t test_data[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
struct s2n_blob test_data_blob = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&test_data_blob, test_data, sizeof(test_data)));
EXPECT_OK(s2n_get_public_random_data(&test_data_blob));
/* Test the sendmsg mock IO stuffer implementation */
{
/* Happy case: server sends a single record */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = S2N_TEST_TO_SEND };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, S2N_TEST_TO_SEND);
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, S2N_TEST_TO_SEND));
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, test_record_type, S2N_TEST_TO_SEND));
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_EQUAL(io_pair.server_in.sendmsg_invoked_count, 0);
};
/* Happy case: client sends a single record */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = S2N_TEST_TO_SEND };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(client->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, S2N_TEST_TO_SEND);
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.server_in, test_data, S2N_TEST_TO_SEND));
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.server_in, test_record_type, S2N_TEST_TO_SEND));
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 0);
EXPECT_EQUAL(io_pair.server_in.sendmsg_invoked_count, 1);
};
/* Send 0 bytes */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t send_zero = 0;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = send_zero };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, send_zero);
/* confirm no records were sent */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), 0);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
};
/* Send msg_iovlen > 1 */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t total_sent = 0;
struct iovec send_msg_iov[S2N_TEST_MSG_IOVLEN] = { 0 };
for (size_t i = 0; i < S2N_TEST_MSG_IOVLEN; i++) {
send_msg_iov[i].iov_base = test_data + total_sent;
send_msg_iov[i].iov_len = S2N_TEST_TO_SEND;
total_sent += S2N_TEST_TO_SEND;
}
struct msghdr send_msg = { .msg_iov = send_msg_iov, .msg_iovlen = S2N_TEST_MSG_IOVLEN };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, total_sent);
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, total_sent));
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, test_record_type, total_sent));
/* validate only 1 record was sent */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), S2N_TEST_KTLS_MOCK_HEADER_SIZE);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
};
/* Send multiple records of same type */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t records_to_send = 5;
struct iovec send_msg_iov = { .iov_len = S2N_TEST_TO_SEND };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
size_t total_sent = 0;
for (size_t i = 0; i < records_to_send; i++) {
/* increment test data ptr */
send_msg_iov.iov_base = test_data + total_sent;
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, S2N_TEST_TO_SEND);
total_sent += bytes_written;
}
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, total_sent));
/* validate `records_to_send` records were sent */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), records_to_send * S2N_TEST_KTLS_MOCK_HEADER_SIZE);
/* validate ancillary header */
for (size_t i = 0; i < records_to_send; i++) {
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, test_record_type, S2N_TEST_TO_SEND));
/* consume the header in order to then validate the next header */
EXPECT_NOT_NULL(s2n_stuffer_raw_read(&io_pair.client_in.ancillary_buffer, S2N_TEST_KTLS_MOCK_HEADER_SIZE));
}
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, records_to_send);
};
/* Send multiple records of different types */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t records_to_send = 5;
struct iovec send_msg_iov = { .iov_len = S2N_TEST_TO_SEND };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
size_t total_sent = 0;
for (size_t i = 0; i < records_to_send; i++) {
/* increment test data ptr */
send_msg_iov.iov_base = test_data + total_sent;
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, i));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, S2N_TEST_TO_SEND);
total_sent += bytes_written;
}
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, total_sent));
/* validate `records_to_send` records were sent */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), records_to_send * S2N_TEST_KTLS_MOCK_HEADER_SIZE);
/* validate ancillary header */
for (size_t i = 0; i < records_to_send; i++) {
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, i, S2N_TEST_TO_SEND));
/* consume the header in order to then validate the next header */
EXPECT_NOT_NULL(s2n_stuffer_raw_read(&io_pair.client_in.ancillary_buffer, S2N_TEST_KTLS_MOCK_HEADER_SIZE));
}
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, records_to_send);
};
/* Attempt send and expect EAGAIN error */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
/* disable growable to simulate blocked/network buffer full */
io_pair.client_in.data_buffer.growable = false;
size_t to_send = 1;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
/* attempt sendmsg and expect EAGAIN */
size_t blocked_invoked_count = 5;
for (size_t i = 0; i < blocked_invoked_count; i++) {
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
EXPECT_EQUAL(s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg), S2N_FAILURE);
EXPECT_EQUAL(errno, EAGAIN);
}
/* enable growable to unblock write */
/* cppcheck-suppress redundantAssignment */
io_pair.client_in.data_buffer.growable = true;
/* attempt sendmsg again and expect success */
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
/* confirm sent data */
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, to_send));
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, test_record_type, to_send));
/* validate only 1 record was sent */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), S2N_TEST_KTLS_MOCK_HEADER_SIZE);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, blocked_invoked_count + 1);
};
/* Partial write with iov_len > 1 */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
/* disable growable and alloc enough space for only 1 iov buffer */
io_pair.client_in.data_buffer.growable = false;
EXPECT_SUCCESS(s2n_stuffer_alloc(&io_pair.client_in.data_buffer, S2N_TEST_TO_SEND));
uint8_t *test_data_ptr = test_data;
struct iovec send_msg_iov[S2N_TEST_MSG_IOVLEN] = { 0 };
for (size_t i = 0; i < S2N_TEST_MSG_IOVLEN; i++) {
send_msg_iov[i].iov_base = (void *) test_data_ptr;
send_msg_iov[i].iov_len = S2N_TEST_TO_SEND;
test_data_ptr += S2N_TEST_TO_SEND;
}
struct msghdr send_msg = { .msg_iov = send_msg_iov, .msg_iovlen = S2N_TEST_MSG_IOVLEN };
char control_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, control_buf, sizeof(control_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
EXPECT_EQUAL(s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg),
S2N_TEST_TO_SEND);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_OK(s2n_test_validate_ancillary(&io_pair.client_in, test_record_type, S2N_TEST_TO_SEND));
EXPECT_OK(s2n_test_validate_data(&io_pair.client_in, test_data, S2N_TEST_TO_SEND));
};
};
/* Test the recvmsg mock IO stuffer implementation */
{
/* Happy case: test send/recv non-zero values. Sending 0 is a special case and tested separately */
for (size_t to_send = 1; to_send < S2N_TLS_MAXIMUM_FRAGMENT_LENGTH; to_send++) {
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_send };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
ssize_t bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_send);
/* confirm read data */
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, to_send);
uint8_t recv_record_type = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type));
EXPECT_EQUAL(recv_record_type, test_record_type);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, 1);
};
/* Attempt read and expect EAGAIN error */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t to_send = 1;
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_send };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
/* attempting to recv data when nothing has been sent blocks */
EXPECT_EQUAL(s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg), S2N_FAILURE);
EXPECT_EQUAL(errno, EAGAIN);
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
/* recv all the sent data */
ssize_t bytes_read = 0;
bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_send);
/* confirm read data */
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, to_send);
uint8_t recv_record_type = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type));
EXPECT_EQUAL(recv_record_type, test_record_type);
size_t blocked_invoked_count = 5;
for (size_t i = 0; i < blocked_invoked_count; i++) {
/* attempting to recv more data blocks */
EXPECT_EQUAL(s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg), S2N_FAILURE);
EXPECT_EQUAL(errno, EAGAIN);
}
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, blocked_invoked_count + 2);
};
/* Read partial data: request < total sent */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t to_send = 10;
size_t to_recv = 3;
size_t remaining_len = to_send - to_recv;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_recv };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
ssize_t bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_recv);
/* confirm read data */
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, to_recv);
uint8_t recv_record_type_1 = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type_1));
EXPECT_EQUAL(recv_record_type_1, test_record_type);
/* confirm that a single records still exists; data len is updated on partial reads */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), S2N_TEST_KTLS_MOCK_HEADER_SIZE);
/* offset and recv remaining data of the same record type */
recv_msg_iov.iov_base = recv_buffer + to_recv;
recv_msg_iov.iov_len = remaining_len;
bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, remaining_len);
/* confirm read data */
uint8_t recv_record_type_2 = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type_2));
EXPECT_EQUAL(recv_record_type_2, test_record_type);
/* validate all sent/recv data */
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, to_send);
/* confirm no more records are available for reading */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), 0);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, 2);
};
/* Read partial data: request > total sent */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
size_t to_send = 10;
size_t to_recv = 15;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_recv };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
ssize_t bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
/* confirm read data: minimum of sent and requested (to_send) */
EXPECT_EQUAL(bytes_read, to_send);
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, to_send);
uint8_t recv_record_type = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type));
EXPECT_EQUAL(recv_record_type, test_record_type);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 1);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, 1);
};
/* Read coalesced records of same type */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
/* send 2 records and recv one. send and recv total of 10 bytes */
size_t records_to_send = 2;
size_t to_send = 5;
size_t to_recv = 10;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, test_record_type));
size_t total_sent = 0;
for (size_t i = 0; i < records_to_send; i++) {
/* increment test data ptr */
send_msg_iov.iov_base = test_data + total_sent;
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
total_sent += bytes_written;
}
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_recv };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
ssize_t bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_recv);
uint8_t recv_record_type = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type));
EXPECT_EQUAL(recv_record_type, test_record_type);
/* validate all data was received */
EXPECT_EQUAL(bytes_read, total_sent);
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, bytes_read);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 2);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, 1);
};
/* Read doesn't coalesce records of different types */
{
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
DEFER_CLEANUP(struct s2n_test_ktls_io_stuffer_pair io_pair = { 0 },
s2n_ktls_io_stuffer_pair_free);
EXPECT_OK(s2n_test_init_ktls_io_stuffer(server, client, &io_pair));
/* send 2 records of different types and recv 2 records in separate calls. send and recv total of 10 bytes */
uint8_t record_type_1 = 1;
uint8_t record_type_2 = 2;
size_t to_send = 5;
size_t to_recv = 10;
size_t total_sent = 0;
size_t total_recv = 0;
struct iovec send_msg_iov = { .iov_base = test_data, .iov_len = to_send };
struct msghdr send_msg = { .msg_iov = &send_msg_iov, .msg_iovlen = 1 };
char send_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
/* sendmsg record_type_1 */
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, record_type_1));
ssize_t bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
total_sent += bytes_written;
/* sendmsg record_type_2 */
EXPECT_OK(s2n_ktls_set_control_data(&send_msg, send_ctrl_buf, sizeof(send_ctrl_buf),
S2N_TLS_SET_RECORD_TYPE, record_type_2));
send_msg_iov.iov_base = test_data + total_sent;
bytes_written = s2n_test_ktls_sendmsg_io_stuffer(server->send_io_context, &send_msg);
EXPECT_EQUAL(bytes_written, to_send);
total_sent += bytes_written;
uint8_t recv_buffer[S2N_TLS_MAXIMUM_FRAGMENT_LENGTH] = { 0 };
char recv_ctrl_buf[S2N_CONTROL_BUF_SIZE] = { 0 };
struct iovec recv_msg_iov = { .iov_base = recv_buffer, .iov_len = to_recv };
struct msghdr recv_msg = {
.msg_iov = &recv_msg_iov,
.msg_iovlen = 1,
.msg_control = recv_ctrl_buf,
.msg_controllen = sizeof(recv_ctrl_buf),
};
/* only recv record_type_1 even though we request more data */
ssize_t bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_send);
uint8_t recv_record_type_1 = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type_1));
EXPECT_EQUAL(recv_record_type_1, record_type_1);
total_recv += bytes_read;
/* only recv record_type_2; which is all that remains */
recv_msg_iov.iov_base = recv_buffer + bytes_read;
bytes_read = s2n_test_ktls_recvmsg_io_stuffer(client->recv_io_context, &recv_msg);
EXPECT_EQUAL(bytes_read, to_send);
uint8_t recv_record_type_2 = 0;
EXPECT_OK(s2n_ktls_get_control_data(&recv_msg, S2N_TLS_GET_RECORD_TYPE, &recv_record_type_2));
EXPECT_EQUAL(recv_record_type_2, record_type_2);
total_recv += bytes_read;
/* validate all data was received (we offset the test_data/recv_buffer so the
* data ends up contiguous and easier to validate) */
EXPECT_EQUAL(s2n_stuffer_data_available(&io_pair.client_in.ancillary_buffer), 0);
EXPECT_EQUAL(total_recv, total_sent);
EXPECT_BYTEARRAY_EQUAL(test_data, recv_buffer, total_sent);
EXPECT_EQUAL(io_pair.client_in.sendmsg_invoked_count, 2);
EXPECT_EQUAL(io_pair.client_in.recvmsg_invoked_count, 2);
};
};
END_TEST();
}
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