Fake Tor OS now create connections

src/algo_thunder.c

@@ -183,7 +183,7 @@ struct block_info {
   char reason[1024];
 };
 
-void on_block (struct evt_core_ctx* ctx, void* raw) {
+enum DONAR_TIMER_DECISION on_block (struct evt_core_ctx* ctx, void* raw) {
   struct block_info* bi = raw;
   struct thunder_ctx* thunderc = bi->app_ctx->misc;
 
@@ -195,6 +195,7 @@ void on_block (struct evt_core_ctx* ctx, void* raw) {
 
 release:
   if (bi->is_timeout) free(bi);
+  return DONAR_TIMER_STOP;
 }
 
 int is_in_order(struct thunder_ctx* thunderc, uint8_t link_id) {

src/donar_client.c

@@ -43,7 +43,7 @@ failed:
   exit(EXIT_FAILURE);
 }
 
-void reinit_socks5(struct evt_core_ctx* ctx, void* user_data) {
+enum DONAR_TIMER_DECISION reinit_socks5(struct evt_core_ctx* ctx, void* user_data) {
   // @FIXME: Ugly way to get donar_client_ctx. Shame on me :/
   struct evt_core_cat* cat = evt_core_get_from_cat (ctx, "socks5-failed");
   if (cat == NULL) {
@@ -55,6 +55,7 @@ void reinit_socks5(struct evt_core_ctx* ctx, void* user_data) {
 
   fprintf(stdout, "[%s][donar-client] We have waited enough, retriggering socks5 for port %ld\n", current_human_datetime (), pos+7500);
   init_socks5_client (app_ctx, pos);
+  return DONAR_TIMER_STOP;
 }
 
 int on_socks5_failed(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {

src/donar_server.c

@@ -119,6 +119,10 @@ void donar_server(struct donar_server_ctx* ctx,  struct donar_params* dp) {
   for (uint16_t i = 0; i < dp->links ; i++) {
     ctx->ports[i] = 7500 + i;
   }
+
+  init_tcp_servers(ctx, dp->links);
+  printf("--- TCP servers are listening\n");
+
   create_onion_services (&(ctx->tos), &(ctx->tctl), ctx->ports, dp->links, dp->tof);
   ugly_global_tctl = &(ctx->tctl);
   /*struct donar_server_os_republish_params dsorp = { .dctx = ctx, dp = dp};
@@ -126,9 +130,6 @@ void donar_server(struct donar_server_ctx* ctx,  struct donar_params* dp) {
   set_timeout(&(ctx->evts), 1000, &dsorp, republish_tor_os); */
   printf("--- Onion services created\n");
 
-  init_tcp_servers(ctx, dp->links);
-  printf("--- TCP servers are listening\n");
-
   g_ptr_array_foreach (dp->remote_ports, (void(*)(void*, void*))init_udp_remote, &(ctx->evts));
   printf("--- Remote ports are binded locally\n");
 

src/faketor.c

@@ -3,6 +3,7 @@
 #include "evt_core.h"
 #include "socks5.h"
 #include "tor_ctl.h"
+#include "timer.h"
 
 int faketor_socks5_listen(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
   int conn_sock1;
@@ -48,20 +49,17 @@ co_error:
 }
 
 int faketor_socks5_server_success(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
-  printf("success!\n");
-  struct socks5_ctx *s5ctx = fdinfo->other;
-
+  printf("success socks5!\n");
   return EVT_CORE_FD_EXHAUSTED;
 }
 
 int faketor_socks5_server_failed(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
-  printf("failure!\n");
+  printf("failure socks5!\n");
   return EVT_CORE_FD_EXHAUSTED;
 }
 
 int faketor_torctl_server_success(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
-  printf("success!\n");
-  evt_core_mv_fd2(ctx, fdinfo, "");
+  printf("success torctl!\n");
 
   return EVT_CORE_FD_EXHAUSTED;
 }
@@ -203,6 +201,7 @@ int main(void) {
   fdinfo.url = "control:listen:9051";
   evt_core_add_fd(&evts, &fdinfo);
 
+  init_timer (&evts);
   socks5_server_init(&evts);
   tor_ctl_server_init (&evts);
 

src/net_tools.c

@@ -35,7 +35,8 @@ int create_ip_client(char* host, char* service, int type) {
 
     if (cursor == NULL) {
         fprintf(stderr, "No connect worked for %s:%s\n", host, service);
-        exit(EXIT_FAILURE);
+        return -1;
+        //exit(EXIT_FAILURE);
     }
 
     freeaddrinfo(result);
@@ -45,6 +46,7 @@ int create_ip_client(char* host, char* service, int type) {
 
 int create_tcp_client(char* host, char* service) {
   int sock = create_ip_client (host, service, SOCK_STREAM);
+  if (sock < 0) return sock;
   int activate = 1;
   int err;
   err = setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, &activate, sizeof(activate));
@@ -102,6 +104,7 @@ int create_ip_server(char* host, char* service, int type) {
 
 int create_tcp_server(char* host, char* service) {
   int sock = create_ip_server (host, service, SOCK_STREAM);
+  if (sock < 0) return sock;
   int activate = 1;
   int err;
   err = setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, &activate, sizeof(activate));

src/timer.c

@@ -21,10 +21,10 @@ int set_timeout_handle(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo)
   }
 
   struct timer_ctx* tctx = fdinfo->other;
-  tctx->cb(ctx, tctx->user_ctx);
+  enum DONAR_TIMER_DECISION dtd = tctx->cb(ctx, tctx->user_ctx);
 
-  evt_core_rm_fd(ctx, fdinfo->fd);
-  return 1;
+  if (dtd == DONAR_TIMER_STOP) evt_core_rm_fd(ctx, fdinfo->fd);
+  return EVT_CORE_FD_EXHAUSTED;
 }
 
 void init_timer(struct evt_core_ctx* evts) {

src/timer.h

@@ -2,7 +2,11 @@
 #include <sys/timerfd.h>
 #include "evt_core.h"
 
-typedef void (*timer_cb)(struct evt_core_ctx* ctx, void* user_data);
+enum DONAR_TIMER_DECISION {
+  DONAR_TIMER_STOP,
+  DONAR_TIMER_CONTINUE,
+};
+typedef enum DONAR_TIMER_DECISION (*timer_cb)(struct evt_core_ctx* ctx, void* user_data);
 void init_timer(struct evt_core_ctx* evts);
 int set_timeout(struct evt_core_ctx* evts, uint64_t milli_sec, void* ctx, timer_cb cb);
 void stop_timer(struct evt_core_ctx* evts);

src/tor_ctl.c

@@ -1,4 +1,30 @@
 #include "tor_ctl.h"
+#include "timer.h"
+
+struct os_connect {
+  char host[256];
+  char port[6];
+  char url[512];
+};
+
+enum DONAR_TIMER_DECISION on_os_connect_timeout(struct evt_core_ctx* ctx, void* user_data) {
+  struct os_connect *oc = user_data;
+  struct evt_core_fdinfo newfdinfo;
+  struct evt_core_cat newcat;
+  newfdinfo.cat = &newcat;
+  newfdinfo.url = oc->url;
+
+  int fd = create_tcp_client(oc->host, oc->port);
+  if (fd <= 0) return DONAR_TIMER_CONTINUE;
+
+  newfdinfo.fd = fd;
+  newfdinfo.cat->name = "torctl-server-success";
+  struct evt_core_fdinfo *reg = evt_core_add_fd (ctx, &newfdinfo);
+
+  printf("[%s][torctl] onion service %s up (cat: %s, fd: %d)\n", current_human_datetime (), reg->url, reg->cat->name, reg->fd);
+  free(oc);
+  return DONAR_TIMER_STOP;
+}
 
 int tor_ctl_connect(struct tor_ctl* ctx, char* addr, char* service) {
   int sock = create_tcp_client (addr, service);
@@ -156,9 +182,9 @@ int on_torctl_server_auth_write(struct evt_core_ctx* ctx, struct evt_core_fdinfo
 
 int on_torctl_server_add_onion_read(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
   char buffer[1024] = {0};
-  char host[1024] = {0};
   char *strtok_ptr, *str_target, *token;
-  int i, port1, port2;
+  int i, port1;
+  char *service_id = "iu7aeep42k5ky3fwcfag5el2raelfcwuilsstqhcz3c6bmxilr2nuayd.onion"; //@FIXME hardcoded url
 
   ssize_t nread = recv(fdinfo->fd, buffer, sizeof(buffer), MSG_PEEK);
   if (nread == -1 && errno == EAGAIN) return EVT_CORE_FD_EXHAUSTED;
@@ -183,11 +209,16 @@ int on_torctl_server_add_onion_read(struct evt_core_ctx* ctx, struct evt_core_fd
     if (i < 2) continue;
     if (token == NULL) break;
 
-    int captured = sscanf(token, "Port=%d,%[^:]:%d", &port1, host, &port2);
-    if (captured != 3) continue;
+    struct os_connect *oc = malloc(sizeof(struct os_connect));
+    int captured = sscanf(token, "Port=%d,%[^:]:%s", &port1, oc->host, oc->port);
+    if (captured != 3) {
+      free(oc);
+      continue;
+    }
 
-    //create_tcp_client();
-    printf("Captured internet: %d, target: %s %d\n", port1, host, port2);
+    sprintf(oc->url, "torctl:%s:%d", service_id, port1);
+    printf("[%s][torctl] will create onion service %s:%d <-> %s:%s in background (%s)\n", current_human_datetime (), service_id, port1, oc->host, oc->port, oc->url);
+    set_timeout(ctx, 100, oc, on_os_connect_timeout);
   }
 
   evt_core_mv_fd2 (ctx, fdinfo, "torctl-server-add-onion-write");
@@ -195,6 +226,7 @@ int on_torctl_server_add_onion_read(struct evt_core_ctx* ctx, struct evt_core_fd
 }
 
 int on_torctl_server_add_onion_write(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
+  //@FIXME hardcoded response
   char *answer = "250-ServiceID=iu7aeep42k5ky3fwcfag5el2raelfcwuilsstqhcz3c6bmxilr2nuayd\r\n250-PrivateKey=ED25519-V3:ULk3Q/TFqngKCDDzeM93YC80IDOjz13PKTx718UjE0Svf+u/QZmN9EHzUCqCa1ZkNAXSQJIzcOVeJ8OL8Zg5Xg==\r\n250 OK\r\n";
 
   ssize_t nwrite;