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//
// Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "nng/nng.h"
#include <nuts.h>
void
test_tls_config_version(void)
{
nng_tls_config *cfg;
NUTS_ENABLE_LOG(NNG_LOG_INFO);
NUTS_PASS(nng_tls_config_alloc(&cfg, NNG_TLS_MODE_SERVER));
// Verify that min ver < max ver
NUTS_FAIL(nng_tls_config_version(cfg, NNG_TLS_1_3, NNG_TLS_1_0),
NNG_ENOTSUP);
// Verify that we cannot configure SSL 3.0 or older.
NUTS_FAIL(nng_tls_config_version(cfg, NNG_TLS_1_0 - 1, NNG_TLS_1_0),
NNG_ENOTSUP);
// Verify that we cannot configure TLS > 1.3.
NUTS_FAIL(nng_tls_config_version(cfg, NNG_TLS_1_0, NNG_TLS_1_3 + 1),
NNG_ENOTSUP);
// Verify that we *can* configure some various ranges starting with
// TLS v1.2. Note that some libraries no longer support TLS 1.0
// and TLS 1.1, so we don't test for them.
#if 0
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_0, NNG_TLS_1_0));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_0, NNG_TLS_1_1));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_0, NNG_TLS_1_2));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_0, NNG_TLS_1_3));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_1, NNG_TLS_1_1));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_1, NNG_TLS_1_2));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_1, NNG_TLS_1_3));
#endif
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_2, NNG_TLS_1_2));
NUTS_PASS(nng_tls_config_version(cfg, NNG_TLS_1_2, NNG_TLS_1_3));
nng_tls_config_free(cfg);
}
void
test_tls_conn_refused(void)
{
nng_stream_dialer *dialer;
nng_aio *aio;
NUTS_ENABLE_LOG(NNG_LOG_INFO);
NUTS_PASS(nng_aio_alloc(&aio, NULL, NULL));
nng_aio_set_timeout(aio, 5000); // 5 sec
// port 8 is generally not used for anything.
NUTS_PASS(nng_stream_dialer_alloc(&dialer, "tls+tcp://127.0.0.1:8"));
nng_stream_dialer_dial(dialer, aio);
nng_aio_wait(aio);
NUTS_FAIL(nng_aio_result(aio), NNG_ECONNREFUSED);
nng_aio_free(aio);
nng_stream_dialer_free(dialer);
}
void
test_tls_large_message(void)
{
nng_stream_listener *l;
nng_stream_dialer *d;
nng_aio *aio1, *aio2;
nng_stream *s1;
nng_stream *s2;
nng_tls_config *c1;
nng_tls_config *c2;
char addr[32];
uint8_t *buf1;
uint8_t *buf2;
size_t size = 450001;
void *t1;
void *t2;
int port;
NUTS_ENABLE_LOG(NNG_LOG_INFO);
// allocate messages
NUTS_ASSERT((buf1 = nng_alloc(size)) != NULL);
NUTS_ASSERT((buf2 = nng_alloc(size)) != NULL);
for (size_t i = 0; i < size; i++) {
buf1[i] = rand() & 0xff;
}
NUTS_PASS(nng_aio_alloc(&aio1, NULL, NULL));
NUTS_PASS(nng_aio_alloc(&aio2, NULL, NULL));
nng_aio_set_timeout(aio1, 5000);
nng_aio_set_timeout(aio2, 5000);
// Allocate the listener first. We use a wild-card port.
NUTS_PASS(nng_stream_listener_alloc(&l, "tls+tcp://127.0.0.1:0"));
NUTS_PASS(nng_tls_config_alloc(&c1, NNG_TLS_MODE_SERVER));
NUTS_PASS(nng_tls_config_own_cert(
c1, nuts_server_crt, nuts_server_key, NULL));
NUTS_PASS(nng_stream_listener_set_ptr(l, NNG_OPT_TLS_CONFIG, c1));
NUTS_PASS(nng_stream_listener_listen(l));
NUTS_PASS(
nng_stream_listener_get_int(l, NNG_OPT_TCP_BOUND_PORT, &port));
NUTS_TRUE(port > 0);
NUTS_TRUE(port < 65536);
snprintf(addr, sizeof(addr), "tls+tcp://127.0.0.1:%d", port);
NUTS_PASS(nng_stream_dialer_alloc(&d, addr));
NUTS_PASS(nng_tls_config_alloc(&c2, NNG_TLS_MODE_CLIENT));
NUTS_PASS(nng_tls_config_ca_chain(c2, nuts_server_crt, NULL));
NUTS_PASS(nng_tls_config_server_name(c2, "localhost"));
NUTS_PASS(nng_stream_dialer_set_ptr(d, NNG_OPT_TLS_CONFIG, c2));
nng_stream_listener_accept(l, aio1);
nng_stream_dialer_dial(d, aio2);
nng_aio_wait(aio1);
nng_aio_wait(aio2);
NUTS_PASS(nng_aio_result(aio1));
NUTS_PASS(nng_aio_result(aio2));
NUTS_TRUE((s1 = nng_aio_get_output(aio1, 0)) != NULL);
NUTS_TRUE((s2 = nng_aio_get_output(aio2, 0)) != NULL);
t1 = nuts_stream_send_start(s1, buf1, size);
t2 = nuts_stream_recv_start(s2, buf2, size);
NUTS_PASS(nuts_stream_wait(t1));
NUTS_PASS(nuts_stream_wait(t2));
NUTS_TRUE(memcmp(buf1, buf2, size) == 0);
nng_free(buf1, size);
nng_free(buf2, size);
nng_stream_free(s1);
nng_stream_free(s2);
nng_stream_dialer_free(d);
nng_stream_listener_free(l);
nng_tls_config_free(c1);
nng_tls_config_free(c2);
nng_aio_free(aio1);
nng_aio_free(aio2);
}
void
test_tls_garbled_cert(void)
{
nng_stream_listener *l;
nng_tls_config *c1;
NUTS_ENABLE_LOG(NNG_LOG_INFO);
// Allocate the listener first. We use a wild-card port.
NUTS_PASS(nng_stream_listener_alloc(&l, "tls+tcp://127.0.0.1:0"));
NUTS_PASS(nng_tls_config_alloc(&c1, NNG_TLS_MODE_SERVER));
NUTS_FAIL(nng_tls_config_own_cert(
c1, nuts_garbled_crt, nuts_server_key, NULL),
NNG_ECRYPTO);
nng_stream_listener_free(l);
nng_tls_config_free(c1);
}
TEST_LIST = {
{ "tls config version", test_tls_config_version },
{ "tls conn refused", test_tls_conn_refused },
{ "tls large message", test_tls_large_message },
{ "tls garbled cert", test_tls_garbled_cert },
{ NULL, NULL },
};
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