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utun2/tests/test_socks_http_proxy.c

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// test_socks_http_proxy.c — Comprehensive SOCKS5 + HTTP proxy integration test
// 4 workers: socks_ipv4, socks_domain, http_proxy, https_connect
// Files: 1KB, 100KB, 1MB, 10MB — deterministic content, byte-by-byte verification
// HTTP + HTTPS (self-signed cert) + POST/echo + HEAD + OPTIONS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifndef _WIN32
#include <unistd.h>
#include <signal.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/wait.h>
#endif
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include "../lib/platform_compat.h"
#include "test_utils.h"
#include "../lib/u_async.h"
#include "../lib/debug_config.h"
#include "../lib/ll_queue.h"
#include "../lib/mem.h"
#include "../src/etcp.h"
#include "../src/etcp_connections.h"
#include "../src/etcp_api.h"
#include "../src/etcp_router.h"
#include "../src/config_parser.h"
#include "../src/utun_instance.h"
#include "../src/routing.h"
#include "../src/tun_if.h"
#define TIMEOUT_MS 300000
#define WORKERS 4
enum { W_SOCKS_IPV4, W_SOCKS_DOMAIN, W_HTTP_PROXY, W_HTTPS_CONNECT };
static const int file_sizes[] = { 1024, 100*1024, 1024*1024, 10*1024*1024 };
static const char* file_names[] = { "f_1k.bin", "f_100k.bin", "f_1m.bin", "f_10m.bin" };
static const int num_files = 4;
#ifndef _WIN32
static struct UTUN_INSTANCE* g_cli = NULL;
static struct UTUN_INSTANCE* g_srv = NULL;
static struct UASYNC* g_ua = NULL;
static int g_ok = 0, g_done = 0, g_phase = 0;
static pid_t g_http_pid = 0, g_https_pid = 0;
static pid_t g_workers[WORKERS];
static pid_t g_workers_orig[WORKERS];
static int g_http_port = 0, g_https_port = 0, g_cli_port = 0, g_srv_port = 0;
static int g_socks_port = 0, g_http_proxy_port = 0;
static char g_tmpdir[256];
static char g_cert[512], g_key[512];
static void* g_mon_id = NULL;
static int g_file_seed = 0;
static int alloc_port(void) {
int s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) return -1;
struct sockaddr_in a; memset(&a, 0, sizeof(a));
a.sin_family = AF_INET; a.sin_addr.s_addr = inet_addr("127.0.0.1");
for (int i = 0; i < 200; i++) {
a.sin_port = htons((uint16_t)(20000 + (rand() % 40000)));
if (bind(s, (struct sockaddr*)&a, sizeof(a)) == 0) { close(s); return ntohs(a.sin_port); }
}
close(s); return -1;
}
static void gen_file(const char* path, int size, int seed) {
FILE* f = fopen(path, "wb");
if (!f) { fprintf(stderr, "gen_file: fopen(%s) failed\n", path); return; }
uint8_t buf[4096];
for (int off = 0; off < size; off += (int)sizeof(buf)) {
int chunk = size - off; if (chunk > (int)sizeof(buf)) chunk = (int)sizeof(buf);
for (int i = 0; i < chunk; i++) buf[i] = (uint8_t)(((off + i) ^ seed) & 0xFF);
fwrite(buf, 1, (size_t)chunk, f);
}
fclose(f);
}
static int start_http_server(int port, const char* dir) {
char script[512]; snprintf(script, sizeof(script), "%s/_srv.py", dir);
FILE* sf = fopen(script, "w");
if (!sf) return -1;
fprintf(sf,
"import sys,os,ssl,threading\n"
"from http.server import HTTPServer,SimpleHTTPRequestHandler\n"
"class H(SimpleHTTPRequestHandler):\n"
" def do_POST(self):\n"
" if self.path=='/echo':\n"
" n=int(self.headers.get('Content-Length',0))\n"
" b=self.rfile.read(n)\n"
" self.send_response(200)\n"
" self.send_header('Content-Type','application/octet-stream')\n"
" self.send_header('Content-Length',str(len(b)))\n"
" self.end_headers();self.wfile.write(b)\n"
" else:self.send_response(405);self.end_headers()\n"
" def do_OPTIONS(self):\n"
" self.send_response(200)\n"
" self.send_header('Allow','GET,HEAD,POST,OPTIONS')\n"
" self.send_header('Content-Length','0')\n"
" self.end_headers()\n"
"port=int(sys.argv[1])\n"
"os.chdir(sys.argv[2])\n"
"HTTPServer(('127.0.0.1',port),H).serve_forever()\n"
);
fclose(sf);
pid_t pid = fork();
if (pid < 0) return -1;
if (pid == 0) {
char port_str[16]; snprintf(port_str, sizeof(port_str), "%d", port);
execlp("python3", "python3", script, port_str, dir, (char*)NULL);
_exit(1);
}
g_http_pid = pid;
usleep(300000);
return 0;
}
static int start_https_server(int port, const char* dir, const char* cert, const char* key) {
char script[512]; snprintf(script, sizeof(script), "%s/_srv_https.py", dir);
FILE* sf = fopen(script, "w");
if (!sf) return -1;
fprintf(sf,
"import sys,os,ssl,threading,traceback\n"
"from http.server import HTTPServer,SimpleHTTPRequestHandler\n"
"class H(SimpleHTTPRequestHandler):\n"
" def do_GET(self):\n"
" try:\n super().do_GET()\n"
" except Exception as e:\n"
" sys.stderr.write(f'HTTPS_ERR GET {self.path}: {e}\\n{traceback.format_exc()}\\n')\n"
" def do_POST(self):\n"
" if self.path=='/echo':\n"
" n=int(self.headers.get('Content-Length',0))\n"
" b=self.rfile.read(n)\n"
" self.send_response(200)\n"
" self.send_header('Content-Type','application/octet-stream')\n"
" self.send_header('Content-Length',str(len(b)))\n"
" self.end_headers();self.wfile.write(b)\n"
" else:self.send_response(405);self.end_headers()\n"
" def do_OPTIONS(self):\n"
" self.send_response(200)\n"
" self.send_header('Allow','GET,HEAD,POST,OPTIONS')\n"
" self.send_header('Content-Length','0')\n"
" self.end_headers()\n"
"os.chdir(sys.argv[3])\n"
"ctx=ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)\n"
"ctx.load_cert_chain(sys.argv[1],sys.argv[2])\n"
"httpd=HTTPServer(('127.0.0.1',int(sys.argv[4])),H)\n"
"httpd.socket=ctx.wrap_socket(httpd.socket,server_side=True)\n"
"httpd.timeout=None\n"
"httpd.serve_forever()\n"
);
fclose(sf);
pid_t pid = fork();
if (pid < 0) return -1;
if (pid == 0) {
char port_str[16]; snprintf(port_str, sizeof(port_str), "%d", port);
execlp("python3", "python3", script, cert, key, dir, port_str, (char*)NULL);
_exit(1);
}
g_https_pid = pid;
usleep(300000);
return 0;
}
static int gen_self_signed_cert(const char* tmpdir, char* cert_out, size_t cert_sz, char* key_out, size_t key_sz) {
snprintf(cert_out, cert_sz, "%s/cert.pem", tmpdir);
snprintf(key_out, key_sz, "%s/key.pem", tmpdir);
char cmd[512];
snprintf(cmd, sizeof(cmd),
"openssl req -x509 -newkey rsa:2048 -keyout %s -out %s -days 1 -nodes -subj '/CN=127.0.0.1' 2>/dev/null",
key_out, cert_out);
int rc = system(cmd);
if (rc != 0) { fprintf(stderr, "[FAIL] openssl cert generation\n"); return -1; }
return 0;
}
static char* make_cfg_server(void) {
static char buf[1024];
snprintf(buf, sizeof(buf),
"[global]\ntun_enabled=no\n"
"my_node_id=0x2222000000000001\n"
"my_private_key=704f2e012c8fa8768130cb0f988a997dccb628372bc5ceccacc78dcbfec5916f\n"
"my_public_key=b3193173def895bd0fcea6f86af077c7d77216f10395275f627ac18242ec0f01\n"
"[server: s1]\naddr=127.0.0.1:%d\ntype=public\n"
"[allowed_keys]\nallow_all=1\n"
"[tcp_proxy_server]\nenabled=yes\n", g_srv_port);
return buf;
}
static char* make_cfg_client(void) {
static char buf[1024];
snprintf(buf, sizeof(buf),
"[global]\ntun_enabled=no\n"
"my_node_id=0x1111000000000001\n"
"my_private_key=38240cb82199e504686507f11f6eaa4f740fde6f0c425c495e49a523019a5d68\n"
"my_public_key=ce8871f07fa056c636d297115f231b08c29cdf94e0d440fce83a07c34416d36a\n"
"[server: s1]\naddr=127.0.0.1:%d\ntype=public\n"
"[client: c1]\nkeepalive=1\nlink=s1:127.0.0.1:%d\n"
"peer_public_key=b3193173def895bd0fcea6f86af077c7d77216f10395275f627ac18242ec0f01\n"
"[tcp_proxy_client]\n"
"enabled=yes\n"
"socks_enabled=yes\n"
"socks_addr=127.0.0.1:%d\n"
"http_proxy_enabled=yes\n"
"http_proxy_addr=127.0.0.1:%d\n"
"via_node=0x2222000000000001\n",
g_cli_port, g_srv_port, g_socks_port, g_http_proxy_port);
return buf;
}
static int conn_ready(struct UTUN_INSTANCE* inst) {
if (!inst) return 0;
for (struct ETCP_CONN* c = inst->connections; c; c = c->next)
for (struct ETCP_LINK* l = c->links; l; l = l->next)
if (l->initialized && c->crypto_ctx.initialized) return 1;
return 0;
}
static int worker_main(int wtype, const char* socks_proxy, const char* http_proxy,
const char* url_http, const char* url_https, const char* tmpdir) {
const char* type_names[] = { "socks_ipv4", "socks_domain", "http_proxy", "https_connect" };
const char* tname = type_names[wtype];
char prof_path[512]; snprintf(prof_path, sizeof(prof_path), "%s/.prof_%d", tmpdir, getpid());
FILE* prof = fopen(prof_path, "w");
if (prof) fprintf(prof, "%s\n", tname);
struct timespec t1, t2;
double times_ms[num_files];
for (int fi = 0; fi < num_files; fi++) {
char expected[512], out[512], url[512], cmd[2048];
snprintf(expected, sizeof(expected), "%s/%s", tmpdir, file_names[fi]);
snprintf(out, sizeof(out), "%s/out_%d_%d_%s", tmpdir, getpid(), fi, file_names[fi]);
const char* base = (wtype == W_HTTPS_CONNECT) ? url_https : url_http;
snprintf(url, sizeof(url), "%s/%s", base, file_names[fi]);
switch (wtype) {
case W_SOCKS_IPV4:
snprintf(cmd, sizeof(cmd), "curl -s --connect-timeout 15 --max-time 60 --socks5 %s -o %s %s 2>/dev/null",
socks_proxy, out, url);
break;
case W_SOCKS_DOMAIN:
snprintf(cmd, sizeof(cmd), "curl -s --connect-timeout 15 --max-time 60 --socks5-hostname %s -o %s %s 2>/dev/null",
socks_proxy, out, url);
break;
case W_HTTP_PROXY:
snprintf(cmd, sizeof(cmd), "curl -s --connect-timeout 15 --max-time 60 -x http://%s -o %s %s 2>/dev/null",
http_proxy, out, url);
break;
case W_HTTPS_CONNECT:
snprintf(cmd, sizeof(cmd), "curl -s --connect-timeout 15 --max-time 60 --proxytunnel -x %s -k -o %s %s 2>/dev/null",
http_proxy, out, url);
break;
}
clock_gettime(CLOCK_MONOTONIC, &t1);
int rc = system(cmd);
clock_gettime(CLOCK_MONOTONIC, &t2);
if (rc != 0) { fprintf(stderr, "[FAIL] %s %s curl exit=%d\n", tname, file_names[fi], WEXITSTATUS(rc)); if (prof) fclose(prof); return 1; }
char cmp_cmd[1024];
snprintf(cmp_cmd, sizeof(cmp_cmd), "cmp -s %s %s", out, expected);
if (system(cmp_cmd) != 0) {
fprintf(stderr, "[FAIL] %s %s byte mismatch\n", tname, file_names[fi]);
char sizecmd[1024]; snprintf(sizecmd, sizeof(sizecmd), "wc -c <%s", out);
FILE* pf = popen(sizecmd, "r"); if (pf) { int sz = 0; fscanf(pf, "%d", &sz); pclose(pf);
fprintf(stderr, " downloaded: %d bytes, expected: %d bytes\n", sz, file_sizes[fi]); }
unlink(out); if (prof) fclose(prof); return 1;
}
unlink(out);
double elapsed_ms = (t2.tv_sec - t1.tv_sec) * 1000.0 + (t2.tv_nsec - t1.tv_nsec) / 1e6;
double mbps = (file_sizes[fi] / (1024.0 * 1024.0)) / (elapsed_ms / 1000.0);
times_ms[fi] = elapsed_ms;
if (prof) fprintf(prof, "%s %d %.0f %.1f\n", file_names[fi], file_sizes[fi], elapsed_ms, mbps);
}
{
double tot_ms = 0; int tot_bytes = 0;
for (int fi = 0; fi < num_files; fi++) { tot_ms += times_ms[fi]; tot_bytes += file_sizes[fi]; }
double avg_mbps = (tot_bytes / (1024.0 * 1024.0)) / (tot_ms / 1000.0);
if (prof) { fprintf(prof, "TOTAL %d %.0f %.1f\n", tot_bytes, tot_ms, avg_mbps); fclose(prof); prof = NULL; }
}
if (wtype == W_HTTP_PROXY) {
char cmd[2048], out[512], f1[512];
int seed = (int)getpid() ^ 0x55;
snprintf(f1, sizeof(f1), "%s/post_%d.bin", tmpdir, getpid());
gen_file(f1, 256, seed);
snprintf(out, sizeof(out), "%s/post_out_%d.bin", tmpdir, getpid());
snprintf(cmd, sizeof(cmd),
"curl -s --connect-timeout 10 --max-time 30 -x http://%s --data-binary @%s -o %s %s/echo 2>/dev/null",
http_proxy, f1, out, url_http);
if (system(cmd) != 0) { fprintf(stderr, "[FAIL] %s POST/echo curl\n", tname); unlink(f1); return 1; }
snprintf(cmd, sizeof(cmd), "cmp -s %s %s", out, f1);
if (system(cmd) != 0) { fprintf(stderr, "[FAIL] %s POST/echo cmp\n", tname); unlink(f1); unlink(out); return 1; }
unlink(f1); unlink(out);
snprintf(cmd, sizeof(cmd),
"curl -s -I --connect-timeout 15 --max-time 30 -x http://%s %s/f_1k.bin 2>/dev/null | head -1 | grep -q '200 OK'",
http_proxy, url_http);
if (system(cmd) != 0) { fprintf(stderr, "[FAIL] %s HEAD 200\n", tname); return 1; }
snprintf(out, sizeof(out), "%s/opt_%d.txt", tmpdir, getpid());
snprintf(cmd, sizeof(cmd),
"curl -s -i --connect-timeout 15 --max-time 30 -x http://%s -X OPTIONS -o %s %s/f_1k.bin 2>/dev/null",
http_proxy, out, url_http);
if (system(cmd) != 0) { fprintf(stderr, "[FAIL] %s OPTIONS curl\n", tname); return 1; }
snprintf(cmd, sizeof(cmd), "grep -q 'Allow:' %s", out);
if (system(cmd) != 0) { fprintf(stderr, "[FAIL] %s OPTIONS Allow\n", tname); unlink(out); return 1; }
unlink(out);
}
return 0;
}
static void monitor(void* arg) {
(void)arg;
if (g_done) return;
if (g_phase == 0) {
if (conn_ready(g_cli) && conn_ready(g_srv)) {
printf(" ETCP connected, launching %d workers...\n", WORKERS); fflush(stdout);
g_phase = 1;
char url_http[128]; snprintf(url_http, sizeof(url_http), "http://127.0.0.1:%d", g_http_port);
char url_https[128]; snprintf(url_https, sizeof(url_https), "https://127.0.0.1:%d", g_https_port);
char socks[64]; snprintf(socks, sizeof(socks), "127.0.0.1:%d", g_socks_port);
char hproxy[64]; snprintf(hproxy, sizeof(hproxy), "127.0.0.1:%d", g_http_proxy_port);
// Для socks_domain worker'а: используем localhost вместо 127.0.0.1 чтобы тестировать atyp=3 (DNS через SOCKS)
char url_http_local[128];
snprintf(url_http_local, sizeof(url_http_local), "http://localhost:%d", g_http_port);
struct {
int type;
const char* socks;
const char* hproxy;
const char* url_h;
const char* url_s;
} wcfg[WORKERS] = {
{ W_SOCKS_IPV4, socks, NULL, url_http, NULL },
{ W_SOCKS_DOMAIN,socks, NULL, url_http_local, NULL },
{ W_HTTP_PROXY, NULL, hproxy, url_http, NULL },
{ W_HTTPS_CONNECT,NULL, hproxy, NULL, url_https },
};
for (int i = 0; i < WORKERS; i++) {
pid_t pid = fork();
if (pid < 0) { printf("[FAIL] fork worker %d: %s\n", i, strerror(errno)); g_done = -1; return; }
if (pid == 0) {
int rc = worker_main(wcfg[i].type, wcfg[i].socks, wcfg[i].hproxy,
wcfg[i].url_h, wcfg[i].url_s, g_tmpdir);
_exit(rc);
}
g_workers[i] = pid;
g_workers_orig[i] = pid;
}
}
}
if (g_phase == 1) {
int done_count = 0, fail = 0;
for (int i = 0; i < WORKERS; i++) {
if (g_workers[i] <= 0) { done_count++; continue; }
int status; pid_t r = waitpid(g_workers[i], &status, WNOHANG);
if (r == 0) continue;
g_workers[i] = 0; done_count++;
if (WIFEXITED(status) && WEXITSTATUS(status) != 0) fail++;
}
if (done_count >= WORKERS) {
if (fail) { printf("[FAIL] %d/%d workers failed\n", fail, WORKERS); g_done = -1; }
else { g_ok = 1; g_done = 1; }
printf("\n=== PROFILING ===\n");
printf("%-14s | %-9s %-9s %-9s %-9s | %-11s\n",
"Worker", "1KB", "100KB", "1MB", "10MB", "Avg MB/s");
printf("%s\n", "-----------------------------------------------------------------");
for (int i = 0; i < WORKERS; i++) {
if (g_workers[i] > 0) continue;
char pp[512]; snprintf(pp, sizeof(pp), "%s/.prof_%d", g_tmpdir, (int)((long)g_workers_orig[i]));
FILE* prf = fopen(pp, "r");
if (!prf) continue;
char tname[64] = "?"; { char buf[128]; if (fgets(buf, sizeof(buf), prf)) sscanf(buf, "%63s", tname); }
double speeds[4] = {0}; char fn[64];
for (int fi = 0; fi < num_files; fi++) {
double mbps; char buf[128];
if (fgets(buf, sizeof(buf), prf)) {
int sz2; double em2; int n = sscanf(buf, "%63s %d %lf %lf", fn, &sz2, &em2, &mbps);
if (n >= 4) speeds[fi] = mbps;
}
}
double total_mbps = 0; { char buf[128]; while (fgets(buf, sizeof(buf), prf)) {
int tb; double tm, tm2; if (sscanf(buf, "TOTAL %d %lf %lf", &tb, &tm, &tm2) == 3) { total_mbps = tm2; break; }
}}
fclose(prf);
printf("%-14s | %5.1f MB/s %5.1f MB/s %5.1f MB/s %5.1f MB/s | %5.1f MB/s\n",
tname, speeds[0], speeds[1], speeds[2], speeds[3], total_mbps);
}
printf("\n"); fflush(stdout);
}
}
if (!g_done) g_mon_id = uasync_set_timeout(g_ua, 1000, NULL, monitor, "mon");
}
static void test_timeout(void* arg) {
(void)arg;
if (!g_done) { printf("[FAIL] timeout (%ds)\n", TIMEOUT_MS/1000); g_done = -1; }
}
#endif /* !_WIN32 */
int main(void) {
printf("=== test_socks_http_proxy ===\n"); fflush(stdout);
#ifdef _WIN32
printf("[SKIP] test_socks_http_proxy — fork() not available on Windows\n");
return 0;
#else
{ int fd = open("/dev/null", O_RDONLY); if (fd > 0 && fd != 0) { dup2(fd, 0); close(fd); } else if (fd < 0) { close(0); open("/dev/null", O_RDONLY); } }
debug_config_init(); debug_set_level(DEBUG_LEVEL_ERROR); debug_set_categories(DEBUG_CATEGORY_ALL);
utun_instance_set_tun_init_enabled(0);
srand((unsigned)time(NULL));
g_http_port = alloc_port(); g_https_port = alloc_port();
g_cli_port = alloc_port(); g_srv_port = alloc_port();
g_socks_port = alloc_port(); g_http_proxy_port = alloc_port();
if (g_http_port < 0 || g_https_port < 0 || g_cli_port < 0 || g_srv_port < 0 || g_socks_port < 0 || g_http_proxy_port < 0) {
printf("[FAIL] port allocation\n"); return 1;
}
printf(" ports: http=%d https=%d socks=%d http_proxy=%d\n", g_http_port, g_https_port, g_socks_port, g_http_proxy_port);
strcpy(g_tmpdir, "/tmp/utun_test_XXXXXX");
if (test_mkdtemp(g_tmpdir) < 0) { printf("[FAIL] mkdtemp: %s\n", strerror(errno)); return 1; }
if (gen_self_signed_cert(g_tmpdir, g_cert, sizeof(g_cert), g_key, sizeof(g_key)) < 0) goto cleanup;
g_file_seed = (int)time(NULL) ^ (int)getpid();
int total_mb = 0;
for (int fi = 0; fi < num_files; fi++) {
char path[512]; snprintf(path, sizeof(path), "%s/%s", g_tmpdir, file_names[fi]);
gen_file(path, file_sizes[fi], g_file_seed + fi);
total_mb += file_sizes[fi];
}
printf(" test files: 1KB, 100KB, 1MB, 10MB (total %.1fMB)\n", total_mb / (1024.0*1024.0)); fflush(stdout);
if (start_http_server(g_http_port, g_tmpdir) < 0) { printf("[FAIL] start http server\n"); goto cleanup; }
if (start_https_server(g_https_port, g_tmpdir, g_cert, g_key) < 0) { printf("[FAIL] start https server\n"); goto cleanup; }
printf(" HTTP/HTTPS servers started\n");
g_ua = uasync_create();
if (!g_ua) { printf("[FAIL] uasync_create\n"); goto cleanup; }
g_srv = utun_instance_create_from_str(g_ua, make_cfg_server());
g_cli = utun_instance_create_from_str(g_ua, make_cfg_client());
if (!g_srv || !g_cli) { printf("[FAIL] instance create\n"); goto cleanup; }
if (utun_instance_init(g_srv) < 0 || utun_instance_init(g_cli) < 0) { printf("[FAIL] instance init\n"); goto cleanup; }
printf(" waiting for ETCP...\n"); fflush(stdout);
g_mon_id = uasync_set_timeout(g_ua, 500, NULL, monitor, "mon");
void* to_id = uasync_set_timeout(g_ua, TIMEOUT_MS * 10, NULL, test_timeout, "to");
while (!g_done) uasync_poll(g_ua, 50);
if (to_id) uasync_cancel_timeout(g_ua, to_id);
if (g_ok) {
int total_files = WORKERS * num_files;
printf("[PASS] test_socks_http_proxy — %d workers × %d files (%.1fMB each) = %d downloads verified byte-by-byte\n",
WORKERS, num_files, total_mb / (1024.0*1024.0), total_files);
} else {
printf("[FAIL] test_socks_http_proxy\n");
}
cleanup:
for (int i = 0; i < WORKERS; i++) if (g_workers[i] > 0) { kill(g_workers[i], SIGKILL); waitpid(g_workers[i], NULL, 0); }
if (g_mon_id) uasync_cancel_timeout(g_ua, g_mon_id);
if (g_http_pid > 0) { kill(g_http_pid, SIGKILL); waitpid(g_http_pid, NULL, 0); }
if (g_https_pid > 0) { kill(g_https_pid, SIGKILL); waitpid(g_https_pid, NULL, 0); }
if (g_cli) { g_cli->running = 0; utun_instance_destroy(g_cli); }
if (g_srv) { g_srv->running = 0; utun_instance_destroy(g_srv); }
if (g_ua) uasync_destroy(g_ua, 0);
{ char buf[512]; snprintf(buf, sizeof(buf), "rm -rf %s", g_tmpdir); system(buf); }
return g_ok ? 0 : 1;
#endif
}