diff --git a/binlog.c b/binlog.c
index 1b16644..5736d03 100644
--- a/binlog.c
+++ b/binlog.c
@@ -82,6 +82,7 @@ static int fetch_comb_binlog_dc_option (void *extra) {
   vlogprintf (E_NOTICE, "DC%d '%.*s' update: %.*s:%d\n", id, l1, name, l2, ip, port);
 
   tglmp_alloc_dc (id, tstrndup (ip, l2), port);
+
   return 0;
 }
 
diff --git a/binlog.h b/binlog.h
index af22f6e..1dbcdb8 100644
--- a/binlog.h
+++ b/binlog.h
@@ -19,7 +19,7 @@
 #ifndef __BINLOG_H__
 #define __BINLOG_H__
 
-#include "structures.h"
+//#include "structures.h"
 
 void bl_do_set_auth_key_id (int num, unsigned char *buf);
 
diff --git a/loop.c b/loop.c
index b266e2c..29b7eb6 100644
--- a/loop.c
+++ b/loop.c
@@ -43,12 +43,16 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
+#include <event2/event.h>
+
 #include "interface.h"
 #include "telegram.h"
 #include "loop.h"
 #include "lua-tg.h"
 #include "tgl.h"
 
+int verbosity;
+
 extern char *default_username;
 extern char *auth_token;
 void set_default_username (const char *s);
@@ -61,37 +65,27 @@ extern int safe_quit;
 extern int queries_num;
 
 void got_it (char *line, int len);
-void net_loop (int flags, int (*is_end)(void)) {
-  while (!is_end ()) {
-    struct pollfd fds[101];
-    int cc = 0;
-    if (flags & 3) {
-      fds[0].fd = 0;
-      fds[0].events = POLLIN;
-      cc ++;
-    }
 
-    //write_state_file ();
-    int x = connections_make_poll_array (fds + cc, 101 - cc) + cc;
-    double timer = next_timer_in ();
-    if (timer > 1000) { timer = 1000; }
-    if (poll (fds, x, timer) < 0) {
-      work_timers ();
-      continue;
-    }
-    work_timers ();
-    if ((flags & 3) && (fds[0].revents & POLLIN)) {
-      tgl_state.unread_messages = 0;
-      if (flags & 1) {
-        rl_callback_read_char ();
-      } else {
-        char *line = 0;        
-        size_t len = 0;
-        assert (getline (&line, &len, stdin) >= 0);
-        got_it (line, strlen (line));
-      }
-    }
-    connections_poll_result (fds + cc, x - cc);
+static void stdin_read_callback (evutil_socket_t fd, short what, void *arg) {
+  if (((long)arg) & 1) {
+    rl_callback_read_char ();
+  } else {
+    char *line = 0;        
+    size_t len = 0;
+    assert (getline (&line, &len, stdin) >= 0);
+    got_it (line, strlen (line));
+  }
+}
+void net_loop (int flags, int (*is_end)(void)) {
+  struct event *ev = 0;
+  if (flags & 3) {
+    ev = event_new (tgl_state.ev_base, 0, EV_READ | EV_PERSIST, stdin_read_callback, (void *)(long)flags);
+    event_add (ev, 0);
+  }
+  while (!is_end || !is_end ()) {
+
+    event_base_loop (tgl_state.ev_base, EVLOOP_ONCE);
+
     #ifdef USE_LUA
       lua_do_all ();
     #endif
@@ -101,10 +95,17 @@ void net_loop (int flags, int (*is_end)(void)) {
       exit (0);
     }
     if (unknown_user_list_pos) {
-      tgl_do_get_user_list_info_silent (unknown_user_list_pos, unknown_user_list);
+      int i;
+      for (i = 0; i < unknown_user_list_pos; i++) {
+        tgl_do_get_user_info (TGL_MK_USER (unknown_user_list[i]), 0, 0, 0);
+      }
       unknown_user_list_pos = 0;
     }   
   }
+
+  if (ev) {
+    event_free (ev);
+  }
 }
 
 char **_s;
@@ -134,30 +135,74 @@ int net_getline (char **s, size_t *l) {
   return 0;
 }
 
-int ret1 (void) { return 0; }
-
 int main_loop (void) {
-  net_loop (1, ret1);
+  net_loop (1, 0);
   return 0;
 }
 
-char *get_auth_key_filename (void);
-char *get_state_filename (void);
-char *get_secret_chat_filename (void);
+struct dc *cur_a_dc;
+int is_authorized (void) {
+  return tgl_authorized_dc (cur_a_dc);
+}
+
+int config_got;
+
+int got_config (void) {
+  return config_got;
+}
+
+void on_get_config (void *extra, int success) {
+  if (!success) {
+    logprintf ("Can not get config.\n");
+    exit (1);
+  }
+  config_got = 1;
+
+}
+
+int should_register;
+char *hash;
+void sign_in_callback (void *extra, int success, int registered, const char *mhash) {
+  if (!success) {
+    logprintf ("Can not send code\n");
+    exit (1);
+  }
+  should_register = !registered;
+  hash = strdup (mhash);
+}
+
+
+int signed_in_ok;
+
+void sign_in_result (void *extra, int success, struct tgl_user *U) {
+  if (!success) {
+    logprintf ("Can not login\n");
+    exit (1);
+  }
+  signed_in_ok = 1;
+}
+
+int signed_in (void) {
+  return signed_in_ok;
+}
+
+int sent_code (void) {
+  return hash != 0;
+}
+
+int dc_signed_in (void) {
+  return tgl_signed_dc (cur_a_dc);
+}
+
+void export_auth_callback (void *DC, int success) {
+  if (!success) {
+    logprintf ("Can not export auth\n");
+    exit (1);
+  }
+}
+
 int zero[512];
 
-extern int max_chat_size;
-int mcs (void) {
-  return max_chat_size;
-}
-
-extern int difference_got;
-int dgot (void) {
-  return difference_got;
-}
-int dlgot (void) {
-  return dialog_list_got;
-}
 
 int readline_active;
 int new_dc_num;
@@ -167,43 +212,37 @@ int loop (void) {
   //on_start ();
   tgl_init ();
 
-  double t = get_double_time ();
+  double t = tglt_get_double_time ();
   logprintf ("replay log start\n");
   tgl_replay_log ();
-  logprintf ("replay log end in %lf seconds\n", get_double_time () - t);
+  logprintf ("replay log end in %lf seconds\n", tglt_get_double_time () - t);
   tgl_reopen_binlog_for_writing ();
   #ifdef USE_LUA
     lua_binlog_end ();
   #endif
   update_prompt ();
 
-  assert (DC_list[dc_working_num]);
-  if (!DC_working || !DC_working->auth_key_id) {
-//  if (auth_state == 0) {
-    DC_working = DC_list[dc_working_num];
-    assert (!DC_working->auth_key_id);
-    dc_authorize (DC_working);
-    assert (DC_working->auth_key_id);
-    auth_state = 100;
-    write_auth_file ();
+  if (!tgl_authorized_dc (tgl_state.DC_working)) {
+    cur_a_dc = tgl_state.DC_working;
+    tgl_dc_authorize (tgl_state.DC_working);
+    net_loop (0, is_authorized);
   }
   
-  if (verbosity) {
-    logprintf ("Requesting info about DC...\n");
-  }
-  tgl_do_help_get_config ();
-  net_loop (0, mcs);
+  tgl_do_help_get_config (on_get_config, 0);
+  net_loop (0, got_config);
+
   if (verbosity) {
     logprintf ("DC_info: %d new DC got\n", new_dc_num);
   }
+
   int i;
-  for (i = 0; i <= MAX_DC_NUM; i++) if (DC_list[i] && !DC_list[i]->auth_key_id) {
-    dc_authorize (DC_list[i]);
-    assert (DC_list[i]->auth_key_id);
-    write_auth_file ();
+  for (i = 0; i <= tgl_state.max_dc_num; i++) if (tgl_state.DC_list[i] && !tgl_authorized_dc (tgl_state.DC_list[i])) {
+    cur_a_dc = tgl_state.DC_list[i];
+    tgl_dc_authorize (cur_a_dc);
+    net_loop (0, is_authorized);
   }
 
-  if (auth_state == 100 || !(DC_working->has_auth)) {
+  if (!tgl_signed_dc (tgl_state.DC_working)) {
     if (!default_username) {
       size_t size = 0;
       char *user = 0;
@@ -217,11 +256,11 @@ int loop (void) {
         set_default_username (user);
       }
     }
-    int res = tgl_do_auth_check_phone (default_username);
-    assert (res >= 0);
-    logprintf ("%s\n", res > 0 ? "phone registered" : "phone not registered");
-    if (res > 0 && !register_mode) {
-      tgl_do_send_code (default_username);
+    tgl_do_send_code (default_username, sign_in_callback, 0);
+    net_loop (0, sent_code);
+    
+    logprintf ("%s\n", should_register ? "phone not registered" : "phone registered");
+    if (!should_register) {
       char *code = 0;
       size_t size = 0;
       printf ("Code from sms (if you did not receive an SMS and want to be called, type \"call\"): ");
@@ -232,17 +271,16 @@ int loop (void) {
         }
         if (!strcmp (code, "call")) {
           printf ("You typed \"call\", switching to phone system.\n");
-          tgl_do_phone_call (default_username);
+          tgl_do_phone_call (default_username, hash, 0, 0);
           printf ("Calling you! Code: ");
           continue;
         }
-        if (tgl_do_send_code_result (code) >= 0) {
+        if (tgl_do_send_code_result (default_username, hash, code, sign_in_result, 0) >= 0) {
           break;
         }
         printf ("Invalid code. Try again: ");
-        tfree_str (code);
+        free (code);
       }
-      auth_state = 300;
     } else {
       printf ("User is not registered. Do you want to register? [Y/n] ");
       char *code;
@@ -269,13 +307,6 @@ int loop (void) {
         perror ("getline()");
         exit (EXIT_FAILURE);
       }
-
-      int dc_num = tgl_do_get_nearest_dc ();
-      assert (dc_num >= 0 && dc_num <= MAX_DC_NUM && DC_list[dc_num]);
-      dc_working_num = dc_num;
-      DC_working = DC_list[dc_working_num];
-      
-      tgl_do_send_code (default_username);
       printf ("Code from sms (if you did not receive an SMS and want to be called, type \"call\"): ");
       while (1) {
         if (net_getline (&code, &size) == -1) {
@@ -284,37 +315,38 @@ int loop (void) {
         }
         if (!strcmp (code, "call")) {
           printf ("You typed \"call\", switching to phone system.\n");
-          tgl_do_phone_call (default_username);
+          tgl_do_phone_call (default_username, hash, 0, 0);
           printf ("Calling you! Code: ");
           continue;
         }
-        if (tgl_do_send_code_result_auth (code, first_name, last_name) >= 0) {
+        if (tgl_do_send_code_result_auth (default_username, hash, code, first_name, last_name, sign_in_result, 0) >= 0) {
           break;
         }
         printf ("Invalid code. Try again: ");
-        tfree_str (code);
+        free (code);
       }
-      auth_state = 300;
     }
+
+    net_loop (0, signed_in);    
+    bl_do_dc_signed (tgl_state.DC_working);
   }
 
-  for (i = 0; i <= MAX_DC_NUM; i++) if (DC_list[i] && !DC_list[i]->has_auth) {
-    tgl_do_export_auth (i);
-    tgl_do_import_auth (i);
-    bl_do_dc_signed (i);
-    write_auth_file ();
+  for (i = 0; i <= tgl_state.max_dc_num; i++) if (tgl_state.DC_list[i] && !tgl_signed_dc (tgl_state.DC_list[i])) {
+    tgl_do_export_auth (i, export_auth_callback, (void*)(long)tgl_state.DC_list[i]);    
+    cur_a_dc = tgl_state.DC_working;
+    net_loop (0, dc_signed_in);
   }
-  write_auth_file ();
+  //write_auth_file ();
 
   fflush (stdout);
   fflush (stderr);
 
-  read_state_file ();
-  read_secret_chat_file ();
+  //read_state_file ();
+  //read_secret_chat_file ();
 
   set_interface_callbacks ();
 
-  tgl_do_get_difference ();
+  tgl_do_get_difference (0, 0);
   net_loop (0, dgot);
   #ifdef USE_LUA
     lua_diff_end ();
diff --git a/main.c b/main.c
index 0f5195b..c479804 100644
--- a/main.c
+++ b/main.c
@@ -374,7 +374,6 @@ void usage (void) {
   printf (" -N                 message num mode\n");
   printf (" -c config-file     specify config file\n");
   printf (" -p prefix          specify prefix\n");
-  printf (" -R                 register mode\n");
   printf (" -f                 sync from start\n");
   printf (" -B                 enable binlog\n");
   printf (" -E                 disable auto accept\n");
@@ -400,7 +399,7 @@ char *lua_file;
 
 void args_parse (int argc, char **argv) {
   int opt = 0;
-  while ((opt = getopt (argc, argv, "u:hk:vn:Nc:p:l:RfBL:Es:wW")) != -1) {
+  while ((opt = getopt (argc, argv, "u:hk:vn:Nc:p:l:fBEs:wW")) != -1) {
     switch (opt) {
     case 'u':
       set_default_username (optarg);
@@ -425,23 +424,23 @@ void args_parse (int argc, char **argv) {
     case 'l':
       log_level = atoi (optarg);
       break;
-    case 'R':
-      register_mode = 1;
-      break;
+    //case 'R':
+    //  register_mode = 1;
+    //  break;
     case 'f':
       sync_from_start = 1;
       break;
     case 'B':
       binlog_enabled = 1;
       break;
-    case 'L':
-      if (log_net_file) { 
-        usage ();
-      }
-      log_net_file = tstrdup (optarg);
-      log_net_f = fopen (log_net_file, "a");
-      assert (log_net_f);
-      break;
+    //case 'L':
+    //  if (log_net_file) { 
+    //    usage ();
+    //  }
+    //  log_net_file = tstrdup (optarg);
+    //  log_net_f = fopen (log_net_file, "a");
+    //  assert (log_net_f);
+    //  break;
     case 'E':
       disable_auto_accept = 1;
       break;
diff --git a/mtproto-client.c b/mtproto-client.c
index ce641f2..6949f00 100644
--- a/mtproto-client.c
+++ b/mtproto-client.c
@@ -1158,6 +1158,9 @@ struct dc *tglmp_alloc_dc (int id, char *ip, int port UU) {
   DC->ip = ip;
   DC->port = port;
   tgl_state.DC_list[id] = DC;
+  if (id > tgl_state.max_dc_num) {
+    tgl_state.max_dc_num = id;
+  }
   return DC;
 }
 
@@ -1171,7 +1174,7 @@ void tglmp_dc_create_session (struct dc *DC) {
   struct session *S = talloc0 (sizeof (*S));
   assert (RAND_pseudo_bytes ((unsigned char *) &S->session_id, 8) >= 0);
   S->dc = DC;
-  S->c = tgl_state.net_methods->create_connection (DC->ip, DC->port, DC, S, &mtproto_methods);
+  S->c = tgl_state.net_methods->create_connection (DC->ip, DC->port, S, DC, &mtproto_methods);
   if (!S->c) {
     vlogprintf (E_DEBUG, "Can not create connection to DC. Is network down?\n");
     exit (1);
diff --git a/net.c b/net.c
index 16ff6c9..52113ab 100644
--- a/net.c
+++ b/net.c
@@ -244,7 +244,7 @@ static void conn_try_write (evutil_socket_t fd, short what, void *arg) {
   }
 }
 
-struct connection *tgln_create_connection (const char *host, int port, struct session *session, struct mtproto_methods *methods) {
+struct connection *tgln_create_connection (const char *host, int port, struct session *session, struct dc *dc, struct mtproto_methods *methods) {
   struct connection *c = talloc0 (sizeof (*c));
   int fd = socket (AF_INET, SOCK_STREAM, 0);
   if (fd == -1) {
@@ -294,6 +294,10 @@ struct connection *tgln_create_connection (const char *host, int port, struct se
 
   start_ping_timer (c);
 
+  c->dc = dc;
+  c->session = session;
+  c->methods = methods;
+
   char byte = 0xef;
   assert (tgln_write_out (c, &byte, 1) == 1);
   tgln_flush_out (c);
@@ -569,3 +573,26 @@ void tgl_connections_poll_result (struct pollfd *fds, int max) {
     }
   }
 }
+
+static void incr_out_packet_num (struct connection *c) {
+  c->out_packet_num ++;
+}
+
+static struct dc *get_dc (struct connection *c) {
+  return c->dc;
+}
+
+static struct session *get_session (struct connection *c) {
+  return c->session;
+}
+
+struct tgl_net_methods tgl_conn_methods = {
+  .write_out = tgln_write_out,
+  .read_in = tgln_read_in,
+  .read_in_lookup = tgln_read_in_lookup,
+  .flush_out = tgln_flush_out,
+  .incr_out_packet_num = incr_out_packet_num,
+  .get_dc = get_dc,
+  .get_session = get_session,
+  .create_connection = tgln_create_connection
+};
diff --git a/net.h b/net.h
index 563bdb5..ca90624 100644
--- a/net.h
+++ b/net.h
@@ -71,6 +71,7 @@ struct connection {
   int in_fail_timer;
   struct mtproto_methods *methods;
   struct session *session;
+  struct dc *dc;
   void *extra;
   struct event *ping_ev;
   struct event *fail_ev;
@@ -88,13 +89,14 @@ int tgln_read_in_lookup (struct connection *c, void *data, int len);
 
 void tgln_insert_msg_id (struct session *S, long long id);
 
+extern struct tgl_net_methods tgl_conn_methods;
 
 //void create_all_outbound_connections (void);
 
 //struct connection *create_connection (const char *host, int port, struct session *session, struct connection_methods *methods);
 struct dc *tgln_alloc_dc (int id, char *ip, int port);
 void tgln_dc_create_session (struct dc *DC, struct mtproto_methods *methods);
-struct connection *tgln_create_connection (const char *host, int port, struct session *session, struct mtproto_methods *methods);
+struct connection *tgln_create_connection (const char *host, int port, struct session *session, struct dc *dc, struct mtproto_methods *methods);
 
 #define GET_DC(c) (c->session->dc)
 #endif
diff --git a/queries.c b/queries.c
index 0a30112..20e4951 100644
--- a/queries.c
+++ b/queries.c
@@ -368,8 +368,8 @@ void tgl_do_help_get_config (void (*callback)(void *, int), void *callback_extra
 /* }}} */
 
 /* {{{ Send code */
-static char *phone_code_hash;
 static int send_code_on_answer (struct query *q UU) {
+  static char *phone_code_hash;  
   assert (fetch_int () == (int)CODE_auth_sent_code);
   int registered = fetch_bool ();
   int l = prefetch_strlen ();
@@ -380,7 +380,8 @@ static int send_code_on_answer (struct query *q UU) {
   phone_code_hash = tstrndup (s, l);
   fetch_int (); 
   fetch_bool ();
-  want_dc_num = -1;
+  tfree_str (q->extra);
+  
   if (q->callback) {
     ((void (*)(void *, int, int, const char *))(q->callback)) (q->callback_extra, 1, registered, phone_code_hash);
   }
@@ -390,6 +391,7 @@ static int send_code_on_answer (struct query *q UU) {
 static int send_code_on_error (struct query *q UU, int error_code, int l, char *error) {
   int s = strlen ("PHONE_MIGRATE_");
   int s2 = strlen ("NETWORK_MIGRATE_");
+  int want_dc_num = 0;
   if (l >= s && !memcmp (error, "PHONE_MIGRATE_", s)) {
     int i = error[s] - '0';
     want_dc_num = i;
@@ -400,9 +402,13 @@ static int send_code_on_error (struct query *q UU, int error_code, int l, char *
     vlogprintf (E_ERROR, "error_code = %d, error = %.*s\n", error_code, l, error);
     assert (0);
   }
-  if (q->callback) {
-    ((void (*)(void *, int, int, const char *))(q->callback)) (q->callback_extra, 0, 0, 0);
-  }
+  bl_do_set_working_dc (want_dc_num);
+  //if (q->callback) {
+  //  ((void (*)(void *, int, int, const char *))(q->callback)) (q->callback_extra, 0, 0, 0);
+  //}
+  assert (DC_working->id == want_dc_num);
+  tgl_do_send_code (q->extra, q->callback, q->callback_extra);
+  tfree_str (q->extra);
   return 0;
 }
 
@@ -413,11 +419,10 @@ static struct query_methods send_code_methods  = {
 };
 
 //char *suser;
-extern int dc_working_num;
+//extern int dc_working_num;
 void tgl_do_send_code (const char *user, void (*callback)(void *callback_extra, int success, int registered, const char *hash), void *callback_extra) {
-  vlogprintf (E_DEBUG, "sending code to dc %d\n", dc_working_num);
+  vlogprintf (E_DEBUG, "sending code to dc %d\n", tgl_state.dc_working_num);
   //suser = tstrdup (user);
-  want_dc_num = 0;
   clear_packet ();
   tgl_do_insert_header ();
   out_int (CODE_auth_send_code);
@@ -427,7 +432,7 @@ void tgl_do_send_code (const char *user, void (*callback)(void *callback_extra,
   out_string (TG_APP_HASH);
   out_string ("en");
 
-  tglq_send_query (DC_working, packet_ptr - packet_buffer, packet_buffer, &send_code_methods, 0, callback, callback_extra);
+  tglq_send_query (DC_working, packet_ptr - packet_buffer, packet_buffer, &send_code_methods, tstrdup (user), callback, callback_extra);
 }
 
 
@@ -444,7 +449,7 @@ static struct query_methods phone_call_methods  = {
   .type = TYPE_TO_PARAM(bool)
 };
 
-void tgl_do_phone_call (const char *user, void (*callback)(void *callback_extra, int success), void *callback_extra) {
+void tgl_do_phone_call (const char *user, const char *hash,void (*callback)(void *callback_extra, int success), void *callback_extra) {
   vlogprintf (E_DEBUG, "calling user\n");
   //suser = tstrdup (user);
   want_dc_num = 0;
@@ -452,7 +457,7 @@ void tgl_do_phone_call (const char *user, void (*callback)(void *callback_extra,
   tgl_do_insert_header ();
   out_int (CODE_auth_send_call);
   out_string (user);
-  out_string (phone_code_hash);
+  out_string (hash);
 
   tglq_send_query (DC_working, packet_ptr - packet_buffer, packet_buffer, &phone_call_methods, 0, callback, callback_extra);
 }
@@ -581,21 +586,21 @@ static struct query_methods sign_in_methods  = {
   .type = TYPE_TO_PARAM(auth_authorization)
 };
 
-int tgl_do_send_code_result (const char *user, const char *code, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) {
+int tgl_do_send_code_result (const char *user, const char *hash, const char *code, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) {
   clear_packet ();
   out_int (CODE_auth_sign_in);
   out_string (user);
-  out_string (phone_code_hash);
+  out_string (hash);
   out_string (code);
   tglq_send_query (DC_working, packet_ptr - packet_buffer, packet_buffer, &sign_in_methods, 0, callback, callback_extra);
   return 0;
 }
 
-int tgl_do_send_code_result_auth (const char *user, const char *code, const char *first_name, const char *last_name, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) {
+int tgl_do_send_code_result_auth (const char *user, const char *hash, const char *code, const char *first_name, const char *last_name, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) {
   clear_packet ();
   out_int (CODE_auth_sign_up);
   out_string (user);
-  out_string (phone_code_hash);
+  out_string (hash);
   out_string (code);
   out_string (first_name);
   out_string (last_name);
@@ -2115,6 +2120,8 @@ static int import_auth_on_answer (struct query *q UU) {
   assert (fetch_int () == (int)CODE_auth_authorization);
   fetch_int (); // expires
   tglf_fetch_alloc_user ();
+  
+  bl_do_dc_signed (((struct dc *)q->extra)->id);
 
   if (q->callback) {
     ((void (*)(void *, int))q->callback) (q->callback_extra, 1);
@@ -2140,7 +2147,7 @@ static int export_auth_on_answer (struct query *q UU) {
   out_int (CODE_auth_import_authorization);
   out_int (tgl_state.our_id);
   out_cstring (s, l);
-  tglq_send_query (q->extra, packet_ptr - packet_buffer, packet_buffer, &import_auth_methods, 0, q->callback, q->callback_extra);
+  tglq_send_query (q->extra, packet_ptr - packet_buffer, packet_buffer, &import_auth_methods, q->extra, q->callback, q->callback_extra);
   tfree (s, l);
   return 0;
 }
diff --git a/tgl.c b/tgl.c
index d6c400d..dc9c730 100644
--- a/tgl.c
+++ b/tgl.c
@@ -5,6 +5,7 @@
 #include "tgl.h"
 #include "tools.h"
 #include "mtproto-client.h"
+#include "net.h"
 
 #include <event2/event.h>
 struct tgl_state tgl_state;
@@ -36,5 +37,19 @@ void tgl_set_rsa_key (const char *key) {
 
 void tgl_init (void) {
   tgl_state.ev_base = event_base_new ();
+
+  if (!tgl_state.net_methods) {
+    tgl_state.net_methods = &tgl_conn_methods;
+  }
   tglmp_on_start (tgl_state.rsa_key);
 }
+
+int tgl_authorized_dc (struct dc *DC) {
+  assert (DC);
+  return DC->auth_key_id;
+}
+
+int tgl_signed_dc (struct dc *DC) {
+  assert (DC);
+  return DC->has_auth;
+}
diff --git a/tgl.h b/tgl.h
index 5fcec37..f9fe339 100644
--- a/tgl.h
+++ b/tgl.h
@@ -31,15 +31,15 @@ struct tgl_update_callback {
 };
 
 struct tgl_net_methods {
-  int (*write_out) (struct connection *c, void *data, int len);
+  int (*write_out) (struct connection *c, const void *data, int len);
   int (*read_in) (struct connection *c, void *data, int len);
   int (*read_in_lookup) (struct connection *c, void *data, int len);
-  int (*flush_out) (struct connection *c);
+  void (*flush_out) (struct connection *c);
   void (*incr_out_packet_num) (struct connection *c);
   struct dc *(*get_dc) (struct connection *c);
   struct session *(*get_session) (struct connection *c);
 
-  struct connection *(*create_connection) (const char *host, int port, struct dc *dc, struct session *session, struct mtproto_methods *methods);
+  struct connection *(*create_connection) (const char *host, int port, struct session *session, struct dc *dc, struct mtproto_methods *methods);
 };
 
 
@@ -64,6 +64,7 @@ struct tgl_state {
 
   struct dc *DC_list[TGL_MAX_DC_NUM];
   struct dc *DC_working;
+  int max_dc_num;
   int dc_working_num;
 
   long long cur_uploading_bytes;
@@ -154,9 +155,9 @@ void tgl_connections_poll_result (struct pollfd *fds, int max);
 
 void tgl_do_help_get_config (void (*callback)(void *callback_extra, int success), void *callback_extra);
 void tgl_do_send_code (const char *user, void (*callback)(void *callback_extra, int success, int registered, const char *hash), void *callback_extra);
-void tgl_do_phone_call (const char *user, void (*callback)(void *callback_extra, int success), void *callback_extra);
-int tgl_do_send_code_result (const char *user, const char *code, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) ;
-int tgl_do_send_code_result_auth (const char *user, const char *code, const char *first_name, const char *last_name, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra);
+void tgl_do_phone_call (const char *user, const char *hash, void (*callback)(void *callback_extra, int success), void *callback_extra);
+int tgl_do_send_code_result (const char *user, const char *hash, const char *code, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra) ;
+int tgl_do_send_code_result_auth (const char *user, const char *hash, const char *code, const char *first_name, const char *last_name, void (*callback)(void *callback_extra, int success, struct tgl_user *Self), void *callback_extra);
 void tgl_do_update_contact_list (void (*callback) (void *callback_extra, int success, int size, struct tgl_user *contacts[]), void *callback_extra);
 void tgl_do_send_message (tgl_peer_id_t id, const char *msg, int len, void (*callback)(void *callback_extra, int success, struct tgl_message *M), void *callback_extra);
 void tgl_do_send_msg (struct tgl_message *M, void (*callback)(void *callback_extra, int success, struct tgl_message *M), void *callback_extra);
@@ -195,6 +196,9 @@ void tgl_do_visualize_key (tgl_peer_id_t id, unsigned char buf[16]);
 
 void tgl_do_send_ping (struct connection *c);
 
+int tgl_authorized_dc (struct dc *DC);
+int tgl_signed_dc (struct dc *DC);
+
 //void tgl_do_get_suggested (void);
 
 void tgl_do_create_keys_end (struct tgl_secret_chat *U);
@@ -208,4 +212,7 @@ struct mtproto_methods {
 
 void tgl_init (void);
 void tgl_dc_authorize (struct dc *DC);
+
+
+double tglt_get_double_time (void);
 #endif
diff --git a/tools.h b/tools.h
index f4097cc..48aaf30 100644
--- a/tools.h
+++ b/tools.h
@@ -20,7 +20,7 @@
 #ifndef __TOOLS_H__
 #define __TOOLS_H__
 
-double get_double_time (void);
+double tglt_get_double_time (void);
 
 void *talloc (size_t size);
 void *trealloc (void *ptr, size_t old_size, size_t size);