Improved interface detach on shared instance shutdown

RNS/Interfaces/AutoInterface.py

@@ -456,21 +456,23 @@ def refresh_peer(self, addr):
         self.peers[addr][1] = time.time()
 
     def process_incoming(self, data):
-        data_hash = RNS.Identity.full_hash(data)
-        deque_hit = False
-        if data_hash in self.mif_deque:
-            for te in self.mif_deque_times:
-                if te[0] == data_hash and time.time() < te[1]+AutoInterface.MULTI_IF_DEQUE_TTL:
-                    deque_hit = True
-                    break
-
-        if not deque_hit:
-            self.mif_deque.append(data_hash)
-            self.mif_deque_times.append([data_hash, time.time()])
-            self.rxb += len(data)
-            self.owner.inbound(data, self)
+        if self.online:
+            data_hash = RNS.Identity.full_hash(data)
+            deque_hit = False
+            if data_hash in self.mif_deque:
+                for te in self.mif_deque_times:
+                    if te[0] == data_hash and time.time() < te[1]+AutoInterface.MULTI_IF_DEQUE_TTL:
+                        deque_hit = True
+                        break
+
+            if not deque_hit:
+                self.mif_deque.append(data_hash)
+                self.mif_deque_times.append([data_hash, time.time()])
+                self.rxb += len(data)
+                self.owner.inbound(data, self)
 
     def process_outgoing(self,data):
+        if self.online:
             for peer in self.peers:
                 try:
                     if self.outbound_udp_socket == None:
@@ -492,6 +494,9 @@ def process_outgoing(self,data):
     def should_ingress_limit(self):
         return False
 
+    def detach(self):
+        self.online = False
+
     def __str__(self):
         return "AutoInterface["+self.name+"]"
 

RNS/Interfaces/Interface.py

@@ -67,12 +67,13 @@ class Interface:
     AUTOCONFIGURE_MTU = False
 
     def __init__(self):
-        self.rxb     = 0
-        self.txb     = 0
-        self.created = time.time()
-        self.online  = False
-        self.bitrate = 62500
-        self.HW_MTU  = None
+        self.rxb      = 0
+        self.txb      = 0
+        self.created  = time.time()
+        self.detached = False
+        self.online   = False
+        self.bitrate  = 62500
+        self.HW_MTU   = None
 
         self.ingress_control = True
         self.ic_max_held_announces = Interface.MAX_HELD_ANNOUNCES

RNS/Interfaces/RNodeInterface.py

@@ -185,6 +185,7 @@ def __init__(self, owner, configuration):
         self.online      = False
         self.detached    = False
         self.reconnecting= False
+        self.hw_errors   = []
 
         self.use_ble     = False
         self.ble_name    = ble_name

RNS/Interfaces/TCPInterface.py

@@ -195,10 +195,10 @@ def set_timeouts_osx(self):
             self.socket.setsockopt(socket.IPPROTO_TCP, TCP_KEEPIDLE, int(TCPClientInterface.I2P_PROBE_AFTER))
 
     def detach(self):
+        self.online = False
         if self.socket != None:
             if hasattr(self.socket, "close"):
                 if callable(self.socket.close):
-                    RNS.log("Detaching "+str(self), RNS.LOG_DEBUG)
                     self.detached = True
 
                     try:
@@ -288,14 +288,15 @@ def reconnect(self):
             raise IOError("Attempt to reconnect on a non-initiator TCP interface")
 
     def process_incoming(self, data):
-        self.rxb += len(data)
-        if hasattr(self, "parent_interface") and self.parent_interface != None:
-            self.parent_interface.rxb += len(data)
-
-        self.owner.inbound(data, self)
+        if self.online and not self.detached:
+            self.rxb += len(data)
+            if hasattr(self, "parent_interface") and self.parent_interface != None:
+                self.parent_interface.rxb += len(data)
+
+            self.owner.inbound(data, self)
 
     def process_outgoing(self, data):
-        if self.online:
+        if self.online and not self.detached:
             # while self.writing:
             #     time.sleep(0.01)
 

RNS/Reticulum.py

@@ -161,14 +161,16 @@ class Reticulum:
     interfacepath    = ""
 
     __instance       = None
-
+
+    __interface_detach_ran = False
     @staticmethod
     def exit_handler():
         # This exit handler is called whenever Reticulum is asked to
         # shut down, and will in turn call exit handlers in other
         # classes, saving necessary information to disk and carrying
         # out cleanup operations.
-
+        if not Reticulum.__interface_detach_ran:
+            RNS.Transport.detach_interfaces()
         RNS.Transport.exit_handler()
         RNS.Identity.exit_handler()
 
@@ -178,15 +180,15 @@ def exit_handler():
     @staticmethod
     def sigint_handler(signal, frame):
         RNS.Transport.detach_interfaces()
+        Reticulum.__interface_detach_ran = True
         RNS.exit()
 
-
     @staticmethod
     def sigterm_handler(signal, frame):
         RNS.Transport.detach_interfaces()
+        Reticulum.__interface_detach_ran = True
         RNS.exit()
 
-
     @staticmethod
     def get_instance():
         """

RNS/Transport.py

@@ -2662,7 +2662,7 @@ def detach_interfaces():
             # Currently no rules are being applied
             # here, and all interfaces will be sent
             # the detach call on RNS teardown.
-            if True:
+            if not interface.detached:
                 detachable_interfaces.append(interface)
             else:
                 pass
@@ -2671,17 +2671,44 @@ def detach_interfaces():
             # Currently no rules are being applied
             # here, and all interfaces will be sent
             # the detach call on RNS teardown.
-            if True:
+            if not interface.detached:
                 detachable_interfaces.append(interface)
             else:
                 pass
 
+        shared_instance_master = None
+        local_interfaces = []
+        detach_threads = []
         for interface in detachable_interfaces:
             try:
-                interface.detach()
+                if type(interface) == RNS.Interfaces.LocalInterface.LocalServerInterface:
+                    shared_instance_master = interface
+                elif type(interface) == RNS.Interfaces.LocalInterface.LocalClientInterface:
+                    local_interfaces.append(interface)
+                else:
+                    def detach_job():
+                        RNS.log(f"Detaching {interface}", RNS.LOG_DEBUG)
+                        interface.detach()
+                    dt = threading.Thread(target=detach_job, daemon=True)
+                    dt.start()
+                    detach_threads.append(dt)
+
             except Exception as e:
                 RNS.log("An error occurred while detaching "+str(interface)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
 
+        for dt in detach_threads:
+            dt.join()
+
+        RNS.log("Detaching local clients", RNS.LOG_DEBUG)
+        for li in local_interfaces:
+            li.detach()
+
+        RNS.log("Detaching shared instance", RNS.LOG_DEBUG)
+        if shared_instance_master != None:
+            shared_instance_master.detach()
+
+        RNS.log("All interfaces detached", RNS.LOG_DEBUG)
+
     @staticmethod
     def shared_connection_disappeared():
         for link in Transport.active_links: