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// test_stcp_link.c — STCP link layer: server listen/accept (slim config) + client connect (raw stcp_client)
#include "stcp_link.h"
#include "stcp_client.h"
#include "secure_channel.h"
#include "utun_instance.h"
#include "../lib/u_async.h"
#include "../lib/debug_config.h"
#include "../lib/mem.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static int tests_passed = 0, tests_total = 0;
static struct SC_MYKEYS s_keys, c_keys;
static int test_failed = 0;
#define BASE_PORT 24567
#define TASSERT(cond) do { \
if (!(cond)) { DEBUG_ERROR(DEBUG_CATEGORY_GENERAL, " FAIL: %s", #cond); test_failed = 1; return test_failed; } \
} while(0)
static struct stcp_link *g_on_srv_link = NULL;
static void on_srv_link(struct stcp_link *link, struct ETCP_SOCKET *tcp_sock) {
(void)tcp_sock; g_on_srv_link = link;
}
static void on_cli_ready(struct stcp_conn *conn, void *arg) {
(void)conn;
int *ready = (int *)arg;
*ready = 1;
}
static struct UTUN_INSTANCE *make_inst(struct UASYNC *ua, struct SC_MYKEYS *keys) {
struct UTUN_INSTANCE *inst = u_calloc(1, sizeof(struct UTUN_INSTANCE));
if (!inst) return NULL;
inst->ua = ua;
inst->my_keys = *keys;
inst->keepalive_interval = 200;
return inst;
}
static int test1_basic(void) {
struct UASYNC *ua = uasync_create(); TASSERT(ua);
struct UTUN_INSTANCE *inst = make_inst(ua, &s_keys); TASSERT(inst);
struct stcp_link_config cfg = {.inst = inst, .listen_family = AF_INET};
g_on_srv_link = NULL;
struct stcp_server *ss = stcp_server_listen(&cfg, BASE_PORT + 1, on_srv_link, NULL);
TASSERT(ss);
int cli_ready = 0;
struct stcp_client *sc = stcp_client_connect(ua, "127.0.0.1", BASE_PORT + 1, &c_keys,
s_keys.public_key, NULL,
0, NULL,
0, 200, 0, on_cli_ready, &cli_ready, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
TASSERT(sc);
int ticks = 0;
while ((!g_on_srv_link || !cli_ready) && ticks < 5000) { uasync_poll(ua, 10); ticks++; }
TASSERT(g_on_srv_link != NULL); TASSERT(cli_ready);
stcp_client_destroy(sc);
stcp_link_close(g_on_srv_link);
stcp_link_server_destroy(ss);
u_free(inst);
uasync_destroy(ua, 1);
return 0;
}
static int test2_wrong_key(void) {
struct UASYNC *ua = uasync_create(); TASSERT(ua);
struct UTUN_INSTANCE *inst = make_inst(ua, &s_keys); TASSERT(inst);
struct stcp_link_config cfg = {.inst = inst, .listen_family = AF_INET};
g_on_srv_link = NULL;
struct stcp_server *ss = stcp_server_listen(&cfg, BASE_PORT + 2, on_srv_link, NULL);
TASSERT(ss);
struct SC_MYKEYS rogue; TASSERT(sc_generate_keypair(&rogue) == SC_OK);
int cli_ready = 0;
struct stcp_client *sc = stcp_client_connect(ua, "127.0.0.1", BASE_PORT + 2, &c_keys,
rogue.public_key, NULL,
0, NULL,
0, 200, 0, on_cli_ready, &cli_ready, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
TASSERT(sc);
int ticks = 0;
while (ticks < 2000) { uasync_poll(ua, 10); ticks++; }
TASSERT(!g_on_srv_link); // should NOT connect with wrong key
stcp_client_destroy(sc);
stcp_link_server_destroy(ss);
u_free(inst);
uasync_destroy(ua, 1);
return 0;
}
int main(void) {
debug_config_init();
debug_set_level(DEBUG_LEVEL_INFO);
debug_set_categories(DEBUG_CATEGORY_GENERAL | DEBUG_CATEGORY_SOCKET | DEBUG_CATEGORY_CRYPTO);
TASSERT(sc_generate_keypair(&s_keys) == SC_OK);
TASSERT(sc_generate_keypair(&c_keys) == SC_OK);
test1_basic();
test2_wrong_key();
DEBUG_INFO(DEBUG_CATEGORY_GENERAL, "Results: %d/%d passed", 2 - (test_failed ? 1 : 0), 2);
return test_failed ? 1 : 0;
}